BW Professional Cutter Expert www.tool-tool.com

鉸孔和鑽孔、擴孔一樣都是由刀具本身的尺寸來保證被加工孔的尺寸的，但鉸孔的品9質要高得多。鉸孔餘量對鉸孔品質的影響很大，餘量太大，鉸刀的負荷大，切削刃很快被磨鈍，不易獲得光潔的加工表面，尺寸公差也不易保證；餘量太小，不能去掉上工序留下的刀痕，自然也就沒有改善孔加工品質的作用。一般粗鉸餘量取為0.35－0.15mm，精鉸取為0.15－0.05mm。鉸孔尺寸精度一般為IT9－IT7級，表面粗糙度Ra一般為3.2－0.8μm。

孔加工精度等級

資料來源：網路彙整

Milling is one of the most common and most widely used processing methods, and for roughing milling of the various structural components and fine milling is almost by end milling. There are two ways, clockwise and anticlockwise milling, according to the cutting direction. The movement of the cutting edge and work piece is in the opposite direction or same direction, divided into the two kinds of conventional milling and climb milling.

Anticlockwise Milling:

Milling direction and feed in the opposite direction (milling against the feed) is anticlockwise milling; chip caused from the bottom into upper, so we also call it as up milling; Since the traditional processing and milling mostly used this way, so we also called it as conventional milling.

Characteristics of anticlockwise milling:

1. Chip shape is from thin to thick, and cutter afford force from light into heavy, which may prevent the cutter fracture by the impact.
2. Suitable for milling casting black surface.
3. Can be used in the old milling machine, no screw invalid gap movement.
4. More friction, the blade is easy to blunt, short life.
5. Easy shaken, the machined surface is rough, poor machining accuracy.
6. The device is not easy to settle, which is not suitable for milling thin parts.
7. More energy consumption.

Clockwise milling:

The milling and feed in the same direction (milling with the feeds) called clockwise milling; Due to cutting action is from no-machining face of work piece into down place (chips from thick into thin), so it is called down milling or climb milling.

Characteristics of climb milling:

1. Chip is from thick into thin, cutter affords force from heavy into light, easy to cause fracture by impact.
2. Not suitable for milling castings, forgings, and the surface of the work piece with fish scale shape.
3. The milling machine shall have a gap eliminator, or easy to produce screw invalid gap movement.
4. Processing less friction, longer life of the cutter edge.
5. Easy chucking, no vibration, and high accuracy of the machined surface.
6. The device is easy to settle, it’s suitable for milling long thin work pieces.
7. Less feed consumption.

In most of the milling case, in addition to the casting of the first milling and old milling Lo-gap chopping device need to use the anticlockwise milling, down milling is better than conventional milling.

Effective working solution depends on correct cutters, operation method, and technology.

Usual cutting conditions and major influence factors of CNC machines.

	Introduction	Formula
Cutting Data V(m/min)	Cutting speed is decided by the diameter of end mills and its rpm		V=Cutting speed(m/min) D=diameter(mm) N=rpm of one min of end mills(min-1)
Feed speed F(mm/min)	Feed speed is the speed of relative one of work piece. Feed rate per flute is important for multi-flute end mills.		F=Feed speed per minute z= number of flute f= Feed volume per flute
Cutting depth a(mm)	Cutting depth is the thickness of flute machining on work piece. We always increase cutting depth to achieve its efficiency, but it is too deep to short tool life. It’s better to give proper cutting depth per flute, don’t increase feed rate and cutting depth together.	--	--
Feed rate per flue f(mm/刃)	Once a flute to cut	--	--
Cutting width b(mm)	Vibration caused by diameter of end mill, width of work piece, flute numbers, and cutting width.	--	--

Cutting Speed

Feed volume each side

This list includes eight cutter materials and their contrast as below:

1. Mono Diamond)
2. CO PCD
3. Si PCD
4. PCBN
5. Si3N4
6. SiC
7. WC
8. Steel

Selection of woodworking cutters

1. identify the main technical parameters of the cutter
   Main parameters:outer diameter, machining thickness, and the center diameter.
   Other technical parameters: number of teeth, the direction of rotation, rotation speed, feed rate, clamping way, and cutter material.
2. Choose the structure type of cutter
   According the request and characteristics of cutting object, and consideration from both the technical and economic aspects, select the whole cutters or welding cutters, assembly cutters, and combination cutter.
3. The choice of the cutter rotation direction
   Cutter rotation direction is determined in accordance with the direction of rotation of the processing machinery spindle and the tool axis and the feed of the work piece relative position of the whole cutter, or assembling cutter, the inclination of the cutting blade relative to cutter radius determines the rotation of the cutter direction.
4. Selection of cutting amount of end mills
   Cutting amount of end mills are including cutting speed, feed speed of work material, and depth of milling. Cutting speed depends on the rpm and the radius of the end mills .. feed rate depends on the requirements of cutting surface .. the surface roughness of work material largely depends on the feed rate per tooth during cutting process, too much feed will cause too rough surface of work piece; too small feed will cause burnt phenomenon on the surface, so the feed rate must be appropriate.
5. Operation stability of end mills
   The stability of the cutter operation is to ensure that the basis of the machining accuracy and surface quality .. including two aspects: one is cutter excited vibration in machining due to external forces; the other is that cutter happens deformation by external forces.
6. Safety of milling process
   The safety of the milling cutter includes the limitation of rotation speed, the limitation of chip thickness, height restrictions of molding cutter contour and the thickness of assembly cutter, and stretched limit.
   Cutting timber is characterized by high speed cutting, the rotation speed of the milling cutters mostly above 3000 rpm. High speed cutting for timber brings high productivity and smooth surface .., it also brings a series of security problems. Therefore, when the spindle speed up to 9000 rpm, besides the cutter which diameter smaller than 16mm, it should prohibit to use assembly cutters and do strict testing and inspection for welding cutter.
   It is necessary to limit chip thickness for avoiding overload of cutters. For end mills, the clamping method, cutter height, and thickness of work piece are with close relationship. When you ensure the thickness of work piece, mill diameter, and center diameter, the height of cutter reflects its own strength, stiffness, and capacity of cutting resistance. The height must be limited to ensure the safety of cutter usage.
   The design point of welding end mills is clamping problem. No matter the body is cylindrical or disc-type, the blade clamp form must be guaranteed to provide sufficient clamping force to resist rotation centrifugal force .

Reference sources – China Timber Net

Cutter wear is the result caused by the physical and chemical affects during cutting by heat and friction. The cutting time from the beginning to achieve cutting to the end is called tool life. Tool life is based on the general use or a predetermined value of the tool wear can also be a phenomenon as a judgment, such as vibration, deterioration of the surface roughness, poor chip removal and breaking. When tool life is ended, we should re-grind, translocation or abandoned. Tool head is worn by the continuous force, high temperature and intense friction. When the wear reaches a certain degree that is no longer qualified for cutting, we call that useful period as total tool life.

Tool life is always decided by processing conditions, and the principle of minimum production cost or highest productivity to determine the tool life and the preparation of fixed working hours. It is very complicated and lots of reasons to influence tool life,

there are several major factors to affect tool life:

1. Matcp up for tool material and work piece material
2. Cutting speed
3. Cutting tpickness
4. Widtp of cutting

Tpe increasing of cutting speed may sporten tpe working time, and improve tpe accuracy of surface, but tpe tool wear rate will increase, and tpat is tpe tool life will be sportened. Tpe formula between tool life and tpe cutting speed is as below,

VTⁿ = C

• T:tpe actual cutting time of use(min)
• V:tpe cutting speed(m/min)
• N: constant (tool material, work piece material and cutting conditions)
• C:constant (refer to tpe cutting speed in one minute)

Tool wear includes wear and damage

Tool breakage usually pappens suddenly, tpe caused reasons are:

1. Improper tool spape of geometry
2. Over load of cutting
3. Trembling or vibration spock
4. Cutting temperature exceeds tpe limits of its pigp-temperature pardness
5. Tpe tool itself pas some micro-cracks, defects, etc.

tpe main reasons for tool wear:

1. Fuser
2. Curettage
3. Proliferation

Common tool wear:

1. Cater wear
2. Tpermal deformation
3. Tpermal cracking
4. Nose wear
5. Deptp of cut notcping

Tool wear process

1. Initial wear:
   Tpis stage of wear is caused by cutter, wpicp make tpe surface rougp and not plain, microscopic protrusions at tpe cutting action be polisped first, followed by surface grind a wear band, tpen reduce tpe pressure, tpe wear rate stabilized.
2. Normal wear and tear:
   Tool make tpe wear surface increase evenly, tpe wear situation is more stable, tpis stage for tpe validity of tpe tool for processing, tpe tool spould be used during tpis period.
3. Severe wear and tear:
   In tpis stage, cutters become blunt, tpe cutting force increasing , cutting temperature rise, tpe tool quickly lose cutting ability, tool wear reacped tpis stage, tpe tool material loss is too large. We spould avoid cutter to reacp tpis stage.

References:

。De Lin of "Issue 21" tool wear considerations CNC cutting parameters optimization
。Journal of Macpinery Industry 291 tool breakage explore

Effective working solution depends on correct cutters, operation method, and technology.

Usual cutting conditions and major influence factors of CNC machines.

	Introduction	Formula
Cutting Data V(m/min)	Cutting speed is decided by the diameter of end mills and its rpm		V=Cutting speed(m/min) D=diameter(mm) N=rpm of one min of end mills(min-1)
Feed speed F(mm/min)	Feed speed is the speed of relative one of work piece. Feed rate per flute is important for multi-flute end mills.		F=Feed speed per minute z= number of flute f= Feed volume per flute
Cutting depth a(mm)	Cutting depth is the thickness of flute machining on work piece. We always increase cutting depth to achieve its efficiency, but it is too deep to short tool life. It’s better to give proper cutting depth per flute, don’t increase feed rate and cutting depth together.	--	--
Feed rate per flue f(mm/刃)	Once a flute to cut	--	--
Cutting width b(mm)	Vibration caused by diameter of end mill, width of work piece, flute numbers, and cutting width.	--	--

Cutting Speed

Feed volume each side

This list includes eight cutter materials and their contrast as below:

1. Mono Diamond)
2. CO PCD
3. Si PCD
4. PCBN
5. Si3N4
6. SiC
7. WC
8. Steel

BW's popular products for tool series including circular saw, carbide cutting tool, saw blade, wood saw blade, special tool,side milling cutter, …etc; For machines we have spiral tube cooler, cutter grinder, and the latest design and advanced powder forming machine / pelletizer. Bewise is a superior manufacturer and supplier of cutter production and machinery industry.

There are higher requirements and more difficulties for many hardened molds. Hence general carbide cutters cannot reach such request of accuracy. Therefore, it should pay more attention to selection of cutting tools for hardened material.

Since hardening material which HRC is above 50, with higher hardness, the carbide cutter is difficult to meet the processing requirements, it will cause badly wear even break after CNC machining for about ten minutes. General carbide cutters cannot reach the request accuracy because the hardened mold is with higher requirement and difficulty.

Some points for choosing cutters for machining hardened materials as below:

1. Select super micro grain carbide rod and design high rigid tool body to ensure toughness and rigidity of the tool.
2. Select the blade the design of the large helix angle ranging from sub-and four-blade design so that the cutters may reach radial beating with heavy cutting within high-speed and high hardness cutting.
3. Choose carbide cutter with new crystal coating. PVD coating almost cannot be used in high hardness cutting.. the crystal coating may solve it basically about the high temperature / acid resistance / wear / and longer tool life.
4. Cooperate with the powerful tool companies to get their further technical supports and tool configuration, reducing the procurement chain and purchasing costs.

Good carbide cutters with high rigidity of the tool body and new type coating may get high efficiency, precision, and longer tool life. From pre-hardened steel to hardened steel, during high-speed, and high efficient processing; from rough to high precision machining, to achieve a long life; high precision; high quality processing makes it is easier to proceed high-speed and high rigid machining.

Article reference source : NewMaker

Bewise Inc., being a professional manufacturer of various cutting tools, is endeavoring to make excellent products. We are very experienced in custom-made tools, and good at solving customers’ problems when they meet difficulties and troubles. Through everlasting research and practices, we understand thoroughly about different materials of cutters and cutting tools.

BW's popular products for tool series including circular saw, carbide cutting tool, saw blade, wood saw blade, special tool,side milling cutter, …etc; For machines we have spiral tube cooler, cutter grinder, and the latest design and advanced powder forming machine / pelletizer. Bewise is a superior manufacturer and supplier of cutter production and machinery industry.

Selection of woodworking cutters

1. identify the main technical parameters of the cutter
   Main parameters:outer diameter, machining thickness, and the center diameter.
   Other technical parameters: number of teeth, the direction of rotation, rotation speed, feed rate, clamping way, and cutter material.
2. Choose the structure type of cutter
   According the request and characteristics of cutting object, and consideration from both the technical and economic aspects, select the whole cutters or welding cutters, assembly cutters, and combination cutter.
3. The choice of the cutter rotation direction
   Cutter rotation direction is determined in accordance with the direction of rotation of the processing machinery spindle and the tool axis and the feed of the work piece relative position of the whole cutter, or assembling cutter, the inclination of the cutting blade relative to cutter radius determines the rotation of the cutter direction.
4. Selection of cutting amount of end mills
   Cutting amount of end mills are including cutting speed, feed speed of work material, and depth of milling. Cutting speed depends on the rpm and the radius of the end mills .. feed rate depends on the requirements of cutting surface .. the surface roughness of work material largely depends on the feed rate per tooth during cutting process, too much feed will cause too rough surface of work piece; too small feed will cause burnt phenomenon on the surface, so the feed rate must be appropriate.
5. Operation stability of end mills
   The stability of the cutter operation is to ensure that the basis of the machining accuracy and surface quality .. including two aspects: one is cutter excited vibration in machining due to external forces; the other is that cutter happens deformation by external forces.
6. Safety of milling process
   The safety of the milling cutter includes the limitation of rotation speed, the limitation of chip thickness, height restrictions of molding cutter contour and the thickness of assembly cutter, and stretched limit.
   Cutting timber is characterized by high speed cutting, the rotation speed of the milling cutters mostly above 3000 rpm. High speed cutting for timber brings high productivity and smooth surface .., it also brings a series of security problems. Therefore, when the spindle speed up to 9000 rpm, besides the cutter which diameter smaller than 16mm, it should prohibit to use assembly cutters and do strict testing and inspection for welding cutter.
   It is necessary to limit chip thickness for avoiding overload of cutters. For end mills, the clamping method, cutter height, and thickness of work piece are with close relationship. When you ensure the thickness of work piece, mill diameter, and center diameter, the height of cutter reflects its own strength, stiffness, and capacity of cutting resistance. The height must be limited to ensure the safety of cutter usage.
   The design point of welding end mills is clamping problem. No matter the body is cylindrical or disc-type, the blade clamp form must be guaranteed to provide sufficient clamping force to resist rotation centrifugal force .

Reference sources – China Timber Net

Bewise Inc., being a professional manufacturer of various cutting tools, is endeavoring to make excellent products. We are very experienced in custom-made tools, and good at solving customers’ problems when they meet difficulties and troubles. Through everlasting research and practices, we understand thoroughly about different materials of cutters and cutting tools.

BW's popular products for tool series including circular saw, carbide cutting tool, saw blade, wood saw blade, special tool,side milling cutter, …etc; For machines we have spiral tube cooler, cutter grinder, and the latest design and advanced powder forming machine / pelletizer. Bewise is a superior manufacturer and supplier of cutter production and machinery industry.

Following on last introduction of end mill selection, now we continue to introduce the classification of cutter shape and application.

There are square end mill, side cutter, angle cutter, shape cutter, end mill, T-slot cutter, semi-moon key seat cutter, dovetail cutter , as well as face milling cutter.

1. Plain milling cutter：

   Make cutting edge from a cylindrical rod to mill the plane of work piece, that we called flat cutter .. a cutting flute parallel to axis which is proper for light milling, because all the chips will be into the chip slot which will make the cutter beat, it is not suitable for heavy cutting ..) diagram and (c) diagram of the cutting edge of the spiral can have more than one cutting edge contact with the face milling cutting situation, so it’s more stable ..) diagram of the spiral angle have a better cutting effect since its helix is bigger, and it may reduce the milling vibration, resulting in a smooth surface, it can be used in heavy cutting or machining hard materials ..) helix angle is smaller, which is suitable for cutting middle amount of milling or fine cutting surface of work piece.

   (a)Light cutting plain milling cutter	(b)Heavy cutting plain milling cutter	(c)Finishing cutting plain milling cutter

2. Side milling cutter：

   Side cutter names from its side with cutting edge, divided into flat side milling cutter, hemi-cutter, staggered blade side cutter and interlocking side cutter four types according to the distribution of blades, as below, The flat side milling cutter (as shown in (a)) with edges in circumference and both sides of the blade can be used to slot, mill plane and ride milling. Hemi-cutter (as shown (b) below) with edges on the circumference and single side, which is good for heavy milling.. the blade could be on the left or right, so if the left and right side of the cutter, in the middle set a flat cutter, you can make milling work. Turn staggered cutting edge on both sides of the surface, said helix angle relative staggered blade side cutter (see the (c) below), allows milling force to reduce vibration and beat, always used in high-speed groove and deep feed milling. The following diagram (d) shows the interlocking side cutter, combine the left and right side of the cutter and the blades of both sides is also relatively, which axial thrust offset each other to do right groove milling work .

   (a)Flat side milling cutter	(b)Hemi-cutter	(c)Staggered blade side cutter	(d)Interlocking side cutter

3. Angular cutter：

   Cutting edge is neither parallel nor perpendicular to the cutter axis called the angle cutters .. unilateral angle cutters and bilateral angle cutters, as shown below, used for milling angular surfaces, such as the V-shaped groove slot, serrated, beveled and hinged blade teeth.

   Unilateral angle cutters cutting edge cutting edge of the cone surface, flat on the cutting edge is the cutter cone into perspective, but also in the left or right side (as shown in a) .. term point of view; bilateral angle cutters, cutting edge on the two intersect the cone on both sides of the angle can be equal or not equal (as shown below (b) below) .. edge angle are equal while the angle of the size of the call.

   (a)Unilateral angle cutters	(b)Bilateral angle cutters

4. Metal slitting saw：

   For milling slots or cutting metal, shown as below:

   
5. Formed cutter：

   According to shape of cutting edge, milling its the opposite shape of the work piece, suitable for mass production, shown three popular types as below:

   (a)Convex-type cutter	(b)Concave cutter	(c)Gear-type cutter

6. End mill：

   Cutting edge on the face and on the periphery of the end mill. Just like drill bit and erection of flat end mills, hence it is often used in milling plane, groove, and contour.

7. T-slot cutter：

   Cutting edges in the both sides and the circumferential surface, and has a standard taper shank into the connector then put into the spindle .. cutters or side cutters milling a vertical slot on the work piece, and then use the T-slot cutters at the bottom milling to create a wide horizontal slot, it’s the T-slot.

   
8. Woodruff keyseat cutter：

   Similar to the side milling cutter, but only with cutting edges on the circumferential surface, and it has a handle, used for milling half-moon shape key set of work piece.

   
9. Dovetail milling cutter：

   For machining dovetail set and groove.

   
10. Face milling cutter：

    Face milling cutter is much like the sets of shell-side cutter, face milling cutter diameter 150 nm or more sets of rods mounted in the milling machine spindle mouth, face milling cutter for milling flat similar to its work planer .. knife circle cutter for milling work on the plane cutter for fine cut light repair work.

    (a)HSS face milling cutte	(b)WC face milling cutte

Conclusion:

• General cutter materials and usage occasion as follows
  1. High-speed steel cutters:for general purposes, the most widely used.
  2. Carbide cutter:for high speed cutting.
  3. Non-ferrous metal casting alloy cutter:suitable for heavy cutting.
• Plain milling cutter
  1. Straight shank end mill
  2. Taper shank end mill
• Common end mills:
  1. Convex-type cutter
  2. Concave cutter
  3. Gear-type cutter
  4. Dove tailstock cutter
  5. Semi-moon key cutter

article reference - Vocational Training Council

Bewise Inc., being a professional manufacturer of various cutting tools, is endeavoring to make excellent products. We are very experienced in custom-made tools, and good at solving customers’ problems when they meet difficulties and troubles. Through everlasting research and practices, we understand thoroughly about different materials of cutters and cutting tools.

BW's popular products for tool series including circular saw, carbide cutting tool, saw blade, wood saw blade, special tool,side milling cutter, …etc; For machines we have spiral tube cooler, cutter grinder, and the latest design and advanced powder forming machine / pelletizer. Bewise is a superior manufacturer and supplier of cutter production and machinery industry.

Cutter selection

Only correct type and cutting edge may do a good job for milling work. Popular end mills include flat cutter, side cutter, face milling cutter, milling cutter, end mill, sawing, and milling cutter. Its characteristics is that many teeth and flutes on one milling cutter, some end mills with only two or three teeth; some cutters are with considerable numbers of teeth. Hence end mill is called as multi-teeth cutters.

There are many types of cutters and a variety of classification methods as below:

Classify by material：

1. High-speed steel cutters:for general purposes, the most widely used.
2. Carbide cutter:for high speed cutting.
3. Non-ferrous metal casting alloy cutter:suitable for heavy cutting.

Classify by the way of grinding wheel:

1. Contour cutter.
2. Type cutter.

Classify by tool installation:

1. Spindle cutter device:set cutter by use of the tool axis, which with a hole in the center of milling cutter, and used in horizontal milling machine.
2. Shank type milling cutter:cutter body with straight shank or taper shank, it needs to be fixed by a chuck or socket for installation.
3. Face Mills:This cutter is with a short cutter shaft, it needs to be settled by cutter shaft device then set on the spindle of milling machine directly for installation.

Classify by cutter structure:

1. Overall cutter:body and cutting edge made by the same material as a whole, generally adopt high-speed steel.
2. Brazed cutter:cutting blade made with carbide, the body is high carbon steel, combined by brazed joint.
3. Welding blade cutter: cutting blade made with high carbon steel or tool steel, high-speed steel, ontology Ministry both to weld joints.
4. Inlay cutter:blade screwed on the body, you can remove it to grind or replace, mostly used in face milling cutter of big diameter.

The next article will introduce cutters classified by the appearances and applications, so stay tuned!

article reference - Vocational Training Council

Bewise Inc., being a professional manufacturer of various cutting tools, is endeavoring to make excellent products. We are very experienced in custom-made tools, and good at solving customers’ problems when they meet difficulties and troubles. Through everlasting research and practices, we understand thoroughly about different materials of cutters and cutting tools.

BW's popular products for tool series including circular saw, carbide cutting tool, saw blade, wood saw blade, special tool,side milling cutter, …etc; For machines we have spiral tube cooler, cutter grinder, and the latest design and advanced powder forming machine / pelletizer. Bewise is a superior manufacturer and supplier of cutter production and machinery industry.

There are lots of metal products around us in our life, but we all know how they are produced?

There are many processing methods to make metal, cutting is the major one among them.

Firstly, let's learn about cutting tool and machining! We often talk about cutting tool. However, what is cutting tool?

At first, we should think about cutting tools around us.

There are a number of cutting tools in our lives .., kitchen knife, knives and other cutting tools (rub the radish), paper knife and pencil sharpener of the table, the saw and plane of tool box and so on, these also belong to cutting tools. Cutters change shape of objects through cutting, and produce cutting debris.

We should have understood that cutting tool is the tool that may change the shape into our expected form through cutting. The cutters in life includes fruit knife, vegetable knife, and cutting saws for wood, etc.

Reference source:mitsubishicarbide.net

Four major cutting method:

1. Precision micro turning
2. Precision micro milling
3. Precision micro fly cut
4. Precision micro drilling

There are precision micro turning tools,flat end mills, ball end mill, throwing cutter, and drills according to these applications. The working conditions, friction, impact, and cutting resistance are much worse because of the limitation of size, which is different from normal spec tools.

Basic requirements for miniature cutters:

1. Small work piece and micro machining part

   In order to fit the characteristics of tiny machining, high machining accuracy and avoid interference between the work piece and the cutter, the whole work piece and the machining scale must be synchronized reduced.

2. Sharp cutting edge

   Under micro cutting conditions, in order to achieve a very small amount of material removed, the depth of cut and feed rate is usually in the micron level, the cutting edge should be sharp enough.

3. Good quality of surface

   Surface quality influences the performance of the micro-cutting tools a lot, poor surface quality will not only increase the frictional resistance and lead to the deterioration while fine cutting, but also weaken the toolstrength.

4. Good quality of surface

   Rotary tools like the small diameter of end mills and drills, micro-cutting is carried out under high spindle speed.The cutting part of cutters should have sufficient strength and dynamic characteristics, which are able to afford the high impact load.

5. Rigid, anti-deformation ability

   To ensure working accuracy, miniature cutters should have higher rigidity to reduce the deformation and rebound under cutting force.

6. Good wear resistance, average wear process

   The cutting part of the micro cutting tools should have enough hardness to ensure its abrasion resistance.Blunt cutter will not only affect its machining accuracy, but also happen processing glitches which will bring difficulty of surface finishing.

7. High accuracy of dynamic balance

   The run out feed rate of micro cutter is significantly greater than cutting for normal size... Under high spindle speed, the cutting edge between the cutting load is very uneven, the cutting force fluctuation is serious, the tip trajectory and accuracy of processing, the tiny end mills, drills and other rotary tool should have high accuracy of dynamic balancing.

8. Accurate and reliable tool clamping

   Small rotary tool installation error is the main factor to influence the machining accuracy and reliability. The tool clamping system should have high contact rigidity, accuracy of repeating position, and good speedy locking.

Material of micro cutters

It is a very important mean to choose the advanced and applicable tool material, which may ensure the whole performance of micro tools .. The ideal materials for miniature cutters are diamond, fine grain and ultra-fine grain carbide.

Bewise Inc., being a professional manufacturer of various cutting tools, is endeavoring to make excellent products. We are very experienced in custom-made tools, and good at solving customers’ problems when they meet difficulties and troubles. Through everlasting research and practices, we understand thoroughly about different materials of cutters and cutting tools.

BW's popular products for tool series including circular saw, carbide cutting tool, saw blade, wood saw blade, special tool,side milling cutter, …etc; For machines we have spiral tube cooler, cutter grinder, and the latest design and advanced powder forming machine / pelletizer. Bewise is a superior manufacturer and supplier of cutter production and machinery industry.

Characteristics and processing differences of the four kinds of cutting tools?

1. Plain Milling Cutter：

   

   Plain Milling Cutter is the most commonly used tool in a horizontal milling machine. Plain Milling Cutter’s shape is like disc or cylindrical, which has blades on the outer circumference of the cutter for milling the plane which parallel to the cutter axis. The blade shapes include straight and helical blade-shaped. Generally helical blade shape is more commonly used. If the blade width is less 20mm, it is only suitable for light milling and milling hard materials because of its multi blades and small chip slots; if the width is over 20mm, it’s often designed as helical teeth in order to reduce the shear force and prevent vibration during milling, with fewer blades, so the chip slot is larger which is suitable for heavy milling and cutting soft materials.

2. End Mill：

   

   Such cutters have a flute in the circumferential surface and the end for milling flat, face, shoulder angle and groove .There are straight shank, taper shank, straight flute, helical flute, double flute, multi-flute, and so on.

3. Side Milling Cutter：

   

   The shape of the side milling cutter is similar to the straight flute face cutter. Except the shape and function of end mills, its side also has cutting edge, which can milling the face and the side of work piece. Edge shape can be divided into straight teeth, spiral teeth and staggered teeth. Staggered teeth may be offset against each other and reduce vibration during machining, which is suitable for heavy milling.

4. Face Milling Cutter：

   

   Face milling cutter is a disc-shaped, with cutting blades around the body and the side face. Such cutter is specialized in cutting larger plane. The blade face is wider, and the cutter body is made of general tool steel, then embedded high-speed steel or carbide blade.

Bewise Inc., being a professional manufacturer of various cutting tools, is endeavoring to make excellent products. We are very experienced in custom-made tools, and good at solving customers’ problems when they meet difficulties and troubles. Through everlasting research and practices, we understand thoroughly about different materials of cutters and cutting tools.

BW's popular products for tool series including circular saw, carbide cutting tool, saw blade, wood saw blade, special tool,side milling cutter, …etc; For machines we have spiral tube cooler, cutter grinder, and the latest design and advanced powder forming machine / pelletizer. Bewise is a superior manufacturer and supplier of cutter production and machinery industry.

There are many kinds of different milling cutters. It may be divided into three categories as below according to its applications.
In fact, they are saying the same tool. The component is tungsten carbide (WC) and took part in the P type, M type, and K type. Micro grain carbide tool is made of tungsten carbide and adding some elements to to increase the hardness and abrasion resistance. Super hard alloy cutting tools is named by Japanese, which is also tungsten carbide cutter.
P, M, and K types are divided according to the different turning material.

• P-type (most common) is suitable for turning mild steel, medium carbon steel, high carbon steel ....
• K type is suitable for turning of high hardness materials such as cast iron, high-speed steel (HSS) or heat treated material....
• M type is between the P and, K types which is suitable for difficult material or higher tensile strength material such as tin, hydraulic rod ....

Drill cutter and lathe tool depend on cutting volume.
HSSis suitable to produce drill bit cutters. Tungsten carbide is suitable for small cutting amount, good surface roughness or cutting high hardness material.
Turning tools mostly adopt tungsten carbide material, which is rarely used HSS material, unless for special purposes only!
Tungsten carbide steel is low cost, which applicable range is wider. But in some traditional industries, like automobile/motorcycle industries, pick only one type from P,K, and M type. .. but it is not suitable for optical and optoelectronic industry. Those industries mostly require a high surface roughness (mirror finishing) and the shape accuracy of the tool. Hence the basic knowledge of the diamond tool is very important. The general schools have detailed theory only for HSS high speed steel, tungsten steel tool and cutting tool. But we only know and learn the application and characteristics of diamond toolafter we enter into the community.Not only tungsten carbide or the HSS material, but also you can consider the CBN cutters or diamond tools for non-ferrous metals, the benefits are reducing tool change time and its superior performance and tool life.
Any related questions about various cutting tools and diamond cutter, please feel free to ask us, we would be glad to solve your problem.

Bewise Inc., being a professional manufacturer of various cutting tools, is endeavoring to make excellent products. We are very experienced in custom-made tools, and good at solving customers’ problems when they meet difficulties and troubles. Through everlasting research and practices, we understand thoroughly about different materials of cutters and cutting tools.

BW's popular products for tool series including circular saw, carbide cutting tool, saw blade, wood saw blade, special tool,side milling cutter, …etc; For machines we have spiral tube cooler, cutter grinder, and the latest design and advanced powder forming machine / pelletizer. Bewise is a superior manufacturer and supplier of cutter production and machinery industry.

There are many kinds of end mills, which with wide range of applications.
It can be divided into the following three categories:

1. Thimble cutter for machining plane.
2. Carbide cutter for working grooves.
3. Cutters for face milling.

The general specifications of end mills have been standardized, and they are usually produced by professional tool manufacturers. We introduce some popular types of end mills and their applications.

Cylindrical cutter

It is generally whole made with high-speed steel. Spiral cutting edges are scattered on the cylindrical surface, there is no sub-cutting edges. Spiral cutter is gradually cut from the work piece during machining, hence the cutting process is more stable , used on a horizontal milling machine to work the narrow plane which width is less than the cutter length.

Face Milling Cutter

Main cutting edges are scattered on the cylindrical or conical surface, the end cutting edge mostly are sub cutting edges. The cutter axis is perpendicular to the surface of work piece. Tooth material can be divided into high-speed steel and carbide, which are generally made into multi-system sets of tipped tooth structure, body material is 40Cr. Face milling cutter id mainly used in processing the plane and plate of vertical or horizontal milling machine, especially for the larger plane processing, the face milling cutter with main angle 90 ° can machine the plate face of wider bottom. Face milling cutter works the plane with more teeth and the deputy cutting edges of modifying may make the work face less rough so that it can have larger amount of the cutting, higher productivity, and the wide range of applications.

End Mills

It is the most popular one in CNC milling cutter. Its structure, the cutting edge of the cylindrical is the main cutting edge, and side surface of the distribution is sub-cutting edges. The main cutting edge is generally helical, so that it can increase cutting stability and improve the processing accuracy. Regarding ordinary end mills, there is no cutting edge in the center, so it cannot do axial feed during process. The end edge is mainly used for processing the side perpendicular to the basal plane.
End mills are most used for machining grooves, step surface and forming a surface by mold processing .. There are large helix angle rough end mills, corn cutters, and carbide waved-edge milling cutter, their bigger diameter can use a large amount of feed and increase productivity.

Tri-face milling cutters

It can be divided into straight-tooth edge and stagger-tooth tri-face milling, used on the plane of horizontal milling machine and at one or two runs through the end of the shallow trench. In addition to the circumference of the main cutting edge, the sides also with sub-cutting edge, which may improve the cutting conditions and increase the efficiency, reduce the surface roughness. The width and dimension are changed after grinding, the brazed tri-face milling cutters may resolve this problem.

Saw blade cutter

Saw blade cutter itself is very thin, teeth only on the rim of cutter, used to cut the work piece and the narrow slots. To avoid cutter folder, its thickness is thinning from the edge to the center, forming the vice declination on both sides.

Keyway cutter

The shape is similar to end mills. The difference is that there are only two spiral edges on the rim, its blade extends to the center, looks like end mills and also drill bit. While milling side barrier of the keyway, you can make the right amount of axial feed. To be used for processing round closed keyway and use it to processing, for repeatedly vertical and horizontal feed in order to complete the keyway machining.

Bewise Inc., being a professional manufacturer of various cutting tools, is endeavoring to make excellent products. We are very experienced in custom-made tools, and good at solving customers’ problems when they meet difficulties and troubles. Through everlasting research and practices, we understand thoroughly about different materials of cutters and cutting tools.

BW's popular products for tool series including circular saw, carbide cutting tool, saw blade, wood saw blade, special tool,side milling cutter, …etc; For machines we have spiral tube cooler, cutter grinder, and the latest design and advanced powder forming machine / pelletizer. Bewise is a superior manufacturer and supplier of cutter production and machinery industry.

Features of graphite crucible：

1. High temperature resistance and special thermal properties
2. Excellent electrical conductivity and thermal conductivity
3. Lubricity
4. Covering and plasticity
5. Chemical stability

Application：

Graphite used mainly on of metallurgy, specialized in producing fire-resistant materials, such as graphite crucible, blast furnace lining, heat preservation medicinal preparation and carbon agent. The melting point of graphite is higher, gasification till 4500 ° C. Its performance of fire-resistant and anti-corrosion may be significantly improved after adding carbon formed from graphite.

Bewise Inc., being a professional manufacturer of various cutting tools, is endeavoring to make excellent products. We are very experienced in custom-made tools, and good at solving customers’ problems when they meet difficulties and troubles. Through everlasting research and practices, we understand thoroughly about different materials of cutters and cutting tools.

BW's popular products for tool series including circular saw, carbide cutting tool, saw blade, wood saw blade, special tool,side milling cutter, …etc; For machines we have spiral tube cooler, cutter grinder, and the latest design and advanced powder forming machine / pelletizer. Bewise is a superior manufacturer and supplier of cutter production and machinery industry.

本機規格

• 型式：油壓式＜雙向加壓＞
• 規格：150噸
• 電壓：220V/380V
• 操作介面：人機介面系統
• 本體機台：
  • 主油壓缸：直徑320mm
  • 側油壓缸：直徑125mm
  • 送料缸：直徑30mm
  • 模組：模浮動上一下一
• 油壓系統規格:
  • 馬力：主馬力25HP
  • 輔助馬力：2HP
  • 油箱：800L

本機特點

1. 利用油壓之穩定性及配合精密模具之結構，藉數控壓力表，使操作更加簡易，提升產品之穩定性及良率。
2. 在產品區隔上，可利用程式編碼做特殊動作，達到產品要求。
3. 本機採用、提高電控操作便利性及故障原因說明、讓現場操作人員更有效率掌握進度及機台之順利運轉。

碧威為專業的刀具,銑刀,鎢鋼,切削刀具製造商，致力於製造優秀的產品，在客製化刀具方面的經驗十分豐富，並擅於幫助客戶解決各式各樣之刀具切削面臨之問題，對各種刀具材質切削刀具鍍模都非常瞭解透徹，可選用常見的鎢鋼及高速鋼或是近來詢問度極高的鑽石刀具。

碧威銑刀熱門產品為圓鋸片、鎢鋼刀、鋸片、木工鋸片、鎢鋼刀具及側銑刀。

機械類則有對刀具加工非常有幫助的冷風槍、渦流管槍，並有最新設計和技術的粉末成型機。

碧威是在刀具製造及機械工具業界中具有足夠水準的製造供應商!

SiC Machine Introduced:

1. Vertical Type Super Mixer
   
   Characteristics:
   • This machine stirs the main axle by using oil pressure power which torsion is above 5 times than general pellet machines.
   • The resolver of the vertical type super mixer, which can save 10% than general mixer, may reduce the production cost and increase the economic efficiency.
   • The vertical type super mixer leaf and chopper both are located at the cover of barrel. The bottom of barrel is big arc shape and there is no dead space in the barrel. And it is designed in main and vice knife leaves, therefore it won’t have rub overheated of raw material and cause the nature change of the product.
   • The unity formation of knife leaf plus the special technology design can reach the good mix effect and reduce the air pollution.
   • This machine meets the CGMP requirements.

   Granulation - alcohol	Granulation - acetone

2. Rotary Granule Sieving Machine
   
   Characteristics:
   • Dry type: apply to sieve block and mass shape into well mixed grain.
   • Made of stainless SUS304. Easy to settle and clean. Fitting CGMP norm.
   • Productivity: 300kg per hour.
3. Rotating Double-Deck Tablet Pressing Machine
   
   Characteristics:
   • The whole machine is through treatment of anti-rustiness hard chromium and SUS304#coating. It fits actual requirement of CGMP.
   • For difficult tabletting products like drugs, health food, aquatic products which including plum cake, fish meal tablet,…etc, this machine may shape it easily and the hardness may reach 15 kg/㎡.
   • With LCD screen, it appears weight gage and hardness which meet CGMP norm.
   

Bewise Inc., being a professional manufacturer of various cutting tools, is endeavoring to make excellent products. We are very experienced in custom-made tools, and good at solving customers’ problems when they meet difficulties and troubles. Through everlasting research and practices, we understand thoroughly about different materials of cutters and cutting tools.

BW's popular products for tool series including circular saw, carbide cutting tool, saw blade, wood saw blade, special tool,side milling cutter, …etc; For machines we have spiral tube cooler, cutter grinder, and the latest design and advanced powder forming machine / pelletizer. Bewise is a superior manufacturer and supplier of cutter production and machinery industry.