机械制造加工外文翻译外文文献英文文献电火花线切割技术Word文件下载.docx

1、机械制造加工外文翻译外文文献英文文献电火花线切割技术#Wire EDM Technology#Abstract:# With the continuous improvement of machinery manufacturing and the need for precision processing, advanced machinery manufacturing technology also matter of course. In this paper, EDM wire cutting technology and its application and developmen

2、t trends.#Key words:# Mechanical manufacturing technology, EDM wire cutting 0.Preface#Manufacturing technology is not only a measure of a country an important indicator of the level of technological development is the focus of international technological competition. Machinery manufacturing technolo

3、gy is the study of product design, production, processing, manufacturing, selling and use, maintenance services and even the whole process of recycling the engineering disciplines, is to enhance quality, efficiency, competitiveness as the goal, including material flow, information flow and energy fl

4、ow complete system works. With the development of society, the requirements for products, great changes have taken place, asked to diverse species, update to speed, quality to high-end, the use to be convenient, the price must be reasonable and appearance to appearance, higher degree of automation,

5、service better, more and more to meet the requirements necessary to adopt advanced machine manufacturing technology. The characteristics of advanced manufacturing technology:# （1） it is the 21st century technology. （2） it is the technology for indust of micro-hole slot, narrow, arbitrary curves, wit

6、h allowance of small, high precision, short production cycle, manufacturing highlight the advantages of low cost, has been widely apprial applications. （3） it is to harness the production process systems engineering. （4） it is a technology for global competition. （5） it is the unity of the three ele

7、ments of market competition.#However, EDM wire cutting technology is one of advanced manufacturing technology, mechanical production and wide application, it is mainly used for processing a variety of complex shapes and precision small parts, for example, Die punch, die, punch and die, fixed plate,

8、stripper plate and so on, forming cutter, model, EDM machining the metal electrode, a varietylied in production, the current account abroad WEDM EDM over 60% of the total. The following highlights WEDM machining technology and application of principles and development trends.#1.Principles of WEDM#WE

9、DM （Wire cut Electrical Discharge Machining, referred to as the WEDM）, sometimes also known as cutting. The basic physical principle is the presence of free positive ions and electrons to accumulate, and soon to be ionized to form a conductive channel. In this stage, a current between two plates, le

10、ad to numerous collisions between particles occur, forming a plasma, and soon increased to 8000 to 12,000 degrees Celsius, melting moments in the two conductors, some of the material at the same time, the electrode and dielectric fluid vaporized, forming a bubble, the rules and it increased until th

11、e pressure is very high. And current interruption, the temperature suddenly drop, causing the bubble implosion, the momentum generated to melt the material thrown into the crater, and then the material is corrosive fluid in the dielectric re-condensed into a small ball, and was discharged dielectric

12、 fluid. NC-controlled then the monitoring and control, servo bodies, so that the phenomenon of uniform discharge to achieve the processing of materials to be processed, making it meet the requirements of size and shape precision products.#On this basis, our domestic development of the Fast Wire Syst

13、em （HS）. Europe and Japan, developed the walking system （LS）. The main difference is 1, the electrode wire of tungsten and molybdenum alloy wire used, the foreign use of brass. 2, by specification of the working fluid, demonized water used abroad. 3, take the wire of the speed of 11 meters / second

14、or so, abroad for 3 to 5 m / min. 4, we repeat the electrode wire is to use until the broken wire to the foreign is not reused after the walk. 5, our precision than in other countries.#According to the electrode wire running at different speeds, and processing quality of different WEDM is usually di

15、vided into three categories:# the first is to go wire speed WEDM （WEDM-HS）, the electrode wire for high-speed reciprocating motion, generally take the wire speed of 8 10m / s, the electrode wire can be reused, the higher processing speed, rapid walking easily lead to the electrode wire and reverse w

16、ire jitter when the pause, the decline in the quality process is the production and use of the main machine species, but also our unique WEDM model;# second is the low-speed WEDM wire walk （WEDM-LS）, the electrode wire for low-speed one-way movement, generally take the wire speed is lower than 0.2m / s , no longer in use after discharge electrode wire, smooth, uniform, small jitter, processing, better quality, but the processing speed of lower production and use is the main foreign models.