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摘要:简要介绍了当今世界数控技术及装备发展的趋势及我国数控装备技术发展和 产业化的现状,在此基础上讨论了在我国加入WTO和对外开放进一步深化的新环境下,发展我国数控技术及装备、提高我国制造业信息化水平和国际竞争能力的重 要性,并从战略和策略两个层面提出了发展我国数控技术及装备的几点看法。
装备工业的技术水平和现代化程度决定着整个国民经济的水平和现代 化程度,数控技术及装备是发展新兴高新技术产业和尖端工业(如信息技术及其产业、生物技术及其产业、航空、航天等国防工业产业)的使能技术和最基本的装 备。马克思曾经说过“各种经济时代的区别,不在于生产什么,而在于怎样生产,用什么劳动资料生产”。制造技术和装备就是人类生产活动的最基本的生产资料, 而数控技术又是当今先进制造技术和装备最核心的技术。当今世界各国制造业广泛采用数控技术,以提高制造能力和水平,提高对动态多变市场的适应能力和竞争能 力。此外世界上各工业发达国家还将数控技术及数控装备列为国家的战略物资,不仅采取重大措施来发展自己的数控技术及其产业,而且在“高精尖”数控关键技术 和装备方面对我国实行封锁和限制政策。总之,大力发展以数控技术为核心的先进制造技术已成为世界各发达国家加速经济发展、提高综合国力和国家地位的重要途 径。
数控技术是用数字信息对机械运动和工作过程进行控制的技术,数控装备是以数控技术为代表的新技术对传统制造产业和新兴制造业的渗透形成的机电 一体化产品,即所谓的数字化装备,其技术范围覆盖很多领域:(1)机械制造技术;(2)信息处理、加工、传输技术;(3)自动控制技术;(4)伺服驱动技 术;(5)传感器技术;(6)软件技术等。

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《数控加工技术》实践课思考题
一. 是非题
(一) 职业道德
1.1.1(√)安全管理是综合考虑“物”的生产管理功能和“人”的管理,目的是生产更好的产品
1.1.2(√) 通常车间生产过程仅仅包含以下四个组成部分:基本生产过程、辅助生产过程、生产技术准备过程、生产服务过程。

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碧威股份有限公司
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鋁合金的析出硬化處理
陳克昌教授編撰
一. 實驗目的

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刀具是机械制造中用于切削加工的工具,又称切削工具。广义的切削工具既包括刀具,还包括磨具。绝大多数的刀具是机用的,但也有手用的。由于机械制造中使用的刀具基本上都用于切削金属材料,所以"刀具"一词一般就理解为金属切削刀具。切削木材用的刀具则称为木工刀具。
  刀具的发展在人类进步的历史上占有重要的地位。中国早在公元前28~前20世纪,就已出现黄铜锥和紫铜的锥、钻、刀等铜质刀具。战国后期(公元前三世纪),由于掌握了渗碳技术,制成了铜质刀具。当时的钻头和锯,与现代的扁钻和锯已有些相似之处。
  然而,刀具的快速发展是在18世纪后期,伴随蒸汽机等机器的发展而来的。1783年,法国的勒内首先制出铣刀。1792年,英国的莫兹利制出丝锥和板牙。有关麻花钻的发明最早的文献记载是在1822年,但直到1864年才作为商品生产。

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自行車的材料有已往使用的鉻鉬鋼以外、還有鋁、鈦、碳纖、鎂等不斷出現新材料。出現了不少用這些新材料製成的車架。關於金屬合金材料的書很多,但是不是專門介紹自行車的材料,在此簡單介紹自行車的材料,供車友們參考。
(此內容是一位元海外的自行車運動愛好者于2000年所寫的內容的摘要)。
材料的常用知識

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Reference source from the internet.
The diamond has the highest hardness, heat conductivity among the substances and excellent in chemical stability,
From such excellent characteristic, the diamond is used to various usage.
For the application as the cutting tool, the simple crystal of the diamond is effective to the ultra precision machining of nonferrous system materials, because the extremely sharp edge of a blade is obtained

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Bewise Inc. www.tool-tool.com
Reference source from the internet.
Properties Diamond cBN Cemented Carbide Cermet Silicone Nitride Aliumina
Density
(×106kg/m3 ) 3.5    3.5 14.5 6.8 3.2 4.2

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Bewise Inc. www.tool-tool.com
Reference source from the internet.
Welcome to BW tool world! We are an experienced tool maker specialized in cutting tools. We focus on what you need and endeavor to research the best cutter to satisfy users’ demand. Our customers involve wide range of industries, like mold & die, aerospace, electronic, machinery, ,,,etc. We are professional expert in cutting field. We would like to solve every problem from you. Please feel free to contact us, it’s our pleasure to serve for you.
BW product including: utting tool、HSS Cutting tool、Carbide end mills、Carbide cutting tool、NAS Cutting tool、Carbide end mill、Aerospace cutting tool、Carbide drill、High speed steel、Milling cutter、Core drill、Taperd end mills、Metric end mills、Miniature end mills、Pilot reamer、Electronics cutter、Step drill、Metal cutting saw、Double margin drill、Gun barrel、Angle milling cutter、Carbide burrs、Carbide tipped cutter、Chamfering tool、IC card engraving cutter、Side cutter、NAS tool、DIN tool、Special tool、Metal slitting saws、Shell end mills、Side and face milling cutters、Side chip clearance saws、Long end mills、Stub roughing end mills、Dovetail milling cutters、Carbide slot drills、Carbide torus cutters、Angeled carbide end mills、Carbide torus cutters、Carbide ball-noseed slot drills、Mould cutter、Tool manufacturer.
Bewise Inc. www.tool-tool.com

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Bewise Inc. www.tool-tool.com
Reference source from the internet.
The Cemented carbide is the complex alloy by sintering the carbide particle of 2a, 3a, 4a tribe metal (Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W) of the periodic law table, using the iron tribe metal (Fe, Co, Ni) as the binder. These carbide are excellent in oxidization resistance with the high fusion point and high hardness.
It is able to obtain many kinds of cemented carbide by combing 9 kinds of carbide and iron tribe metals, in which it is claiming to be WC-Co sysytem alloy with an usually Cemented Carbide.
At present, the alloy such as the WC-Co system, WC-TiC-Co system, WC-TiC-Ta (Nb) the C-Co system are used as the materials for the cutting tools.
Furthermore, the coating tool that covered with the ceramics such as Ti (C, N), Al2O3 on the suraface of Cementd carbide cutting tool is increasing, as a result that the cutting condition has sped up in recent years, and the use proportion exceeds 50% in the cutting tools.
Welcome to BW tool world! We are an experienced tool maker specialized in cutting tools. We focus on what you need and endeavor to research the best cutter to satisfy users’ demand. Our customers involve wide range of industries, like mold & die, aerospace, electronic, machinery, ,,,etc. We are professional expert in cutting field. We would like to solve every problem from you. Please feel free to contact us, it’s our pleasure to serve for you.
BW product including: utting tool、HSS Cutting tool、Carbide end mills、Carbide cutting tool、NAS Cutting tool、Carbide end mill、Aerospace cutting tool、Carbide drill、High speed steel、Milling cutter、Core drill、Taperd end mills、Metric end mills、Miniature end mills、Pilot reamer、Electronics cutter、Step drill、Metal cutting saw、Double margin drill、Gun barrel、Angle milling cutter、Carbide burrs、Carbide tipped cutter、Chamfering tool、IC card engraving cutter、Side cutter、NAS tool、DIN tool、Special tool、Metal slitting saws、Shell end mills、Side and face milling cutters、Side chip clearance saws、Long end mills、Stub roughing end mills、Dovetail milling cutters、Carbide slot drills、Carbide torus cutters、Angeled carbide end mills、Carbide torus cutters、Carbide ball-noseed slot drills、Mould cutter、Tool manufacturer.
Bewise Inc. www.tool-tool.com

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Bewise Inc. www.tool-tool.com
Reference source from the internet.
Generally, TiC-Ni based alloy is called Cermet,which is one of the kind of cemented carbide.
It was pointed that the cutting performance of TiC based Cermet is inferior in comparison with WC-Co bsed cemented carbide at the beginning of the marketing,.
But much improvement has been advanced this type until now, and TiC based Cermet tool is used mainly for the finish processing of steel in Japan because of the predominance at face roughness of the work after cutting and the proportion that occupies it to the cutting chip is about up to 25%.

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Bewise Inc. www.tool-tool.com
Reference source from the internet.
They sell mainly the cutting tools of the alumina system and Silicon nitiride system in the ceramic cutting tool market. The one of the alumina system has a disadvantage that it is weak to the characteristic of the impact, although it is excellent in abrasion resistance, so one of the Silicon nitride which has excellent mechanical and thermal properties has been developed recent years and be input the market of the world.
It is necessary to add the sintering additives such as alumina and magnesium oxide, because the Silicon nitride is not able to be sintered in itself.
Silicon nitride cutting tool is applied to more such high speed cutting that the edge of a blade of the tool becomes a high temperature, because the mechanical characteristic such as the bending strength and hardness are excellent in comparison with cemented carbide and cermet even at the high temperature.

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1μm
The cross section of TiN film coated on thesteel
  under-half of this photo shows the steel
Bewise Inc. www.tool-tool.com
Reference source from the internet.

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