Special CNC mold

1 wire EDM

In EDM micro EDM has been widely applied. The emergence of WEDG technology, and successfully solved the problem of production and installation of the micro electrode, the micro-EDM into application stage. On the one hand, Japan University of Tokyo Masuzawa Takaku et al have machining micro holes with diameter of 2.5mm micro shaft and phi 5mm, represents one of the world leading. According to statistics, micro EDM and EDM power to total proportion is rising year by year, currently has close to 10%.

WEDM-LS new technologies continue to emerge

WEDM is the main focus in recent years. With no electrolytic pulse power supply, optimize the development and application of energy pulse power control, deionized water in ion and a series of precise processing technology, development of WEDM has reached a new stage. The processing quality of the machine tool can obtain the contour accuracy of 1.5um and Ra0.1um of the Swiss firm Archie Chamfer walking thread cutting, machining can be suitable for precision die. With the realization of localization, this kind of machine price is rapidly decreased and gradually widely used.

Agie company developed the Agiecut Vertex double wire EDM machine tool. The machine with two reels, metal wire can be used with different diameter and cutting, cutting to improve the efficiency of. All the operation automatically, and sensor monitoring its operation. Cut the wire diameter is 0.02-0.02mm.

2 EDM technology to high precision and high automation development

In recent years, CNC EDM technology can use brass electrode standard, the application of CAD/CAM technology to complete two-dimensional or three-dimensional surface machining, without forming electrode, greatly simplifying the electrode preparation, in high precision machining, has good prospects.

Japan has recently developed a new processing method of EDM, micro silicon powder is added in the amount of working fluid, or powder, graphite powder can be, can make the surface precision is increased several times over. At present, EDM machine corresponds to this process has been commercialized. Future electric spark discharge technology is inseparable from the 3 trends, namely, high speed, high precision and high automation.

3 special mechanical machining

Can be divided into the abrasive flow machining, water processing, the low stress grinding, ultrasonic machining and other processing method.

Abrasive water jet machining capable of precision cutting, machining burr-free, followed by water jet another advantage is that it can touch other machining tool is not easy to achieve.

Ultrasonic machining tool production vibration amplitude through transfer, liquid abrasive particles obtained workpiece machining ability, impact. The application of this technology is not widely, ultrasonic polishing is mainly used in the numerical control mould. The overseas is research on ultrasonic abrasive machining. Especially for rotary ultrasonic study, make the deep-hole processing quality was obviously improved, over the years the United States has conducted research on ultrasonic assisted diamond tool in machining, the development of Japanese are ultrasonic assisted grinding.

4 other special processing

Other special processing refers to the use of electron beam, laser beam, plasma etching of metal and generates heat to achieve the purpose of processing. The main beam, electrical discharge grinding, laser processing, plasma processing method.

Electron beam processing technology in recent 20 years of rapid development, electron beam can already entered the subtle, welding, coating, smelting, heat treatment, exposure, radiation processing. Electron beam processing technology to the high power, high precision, miniaturization, automation development direction.

Ion beam milling machining can be carved, sputter coating, ion plating and manufacturing, especially IAC technology with gas phase deposition and ion implantation of the advantages of both, adhesive force is very strong, can produce various properties of compact structure and excellent functional coatings prepared. The physical and mechanical properties of plasma arc cutting process can change the local material hardness 40-70HRC metal materials and high temperature alloy material.