文献综述英文版

Author：yu

Department of Materials

"Magnetic motor shell stamping process and die design" literature review Abstract摘要

By read these references and documents, in-depth understanding of the contemporary mold of advanced manufacturing technology and metal forming technology, a number of instances of mold design and the understanding and learning, to further study the method of stamping die design, die design and thus have a used in this design and drawing die punching die and so on, through the design of the book related to mold in-depth study, this drawing die and the punching die and so the design methods have references and documents, the design of low-cost high-accuracy die with directional guidance.

Keywords：

Mold advanced manufacturing technology Mold Manufacturing Trends Drawing Punching CAE Die Materials Prices

Preface前言

As China's economic integration with the world economy, the rapid development of basic industries, mold manufacturing industry is also developing the current economic situation, people pay more attention to efficiency, product quality, cost, and new product development innovation and development of mold manufacturing concern.

The history of the development of mold

Archaeological discoveries in China, as early as 2,000 years ago, China has been used to make bronze stamping dies to prove that in ancient China stamping die stamping and achievements to the world's 1953, the Changchun First Automobile Works in China for the first time established a stamping plants, the plant began manufacturing cars in 1958, cover years of the 20th century began producing fine blanking walked a long path of development temperature, the present, China has formed more than 300 billion yuan (not including Hong Kong, Macao and Taiwan statistics) the production capacity of various types of stamping dies.

Development Status and Trends Die

Since reform and opening, with the rapid development of the national economy, the market demand of mold recent years, the mold industry has been the growth rate of about 15% of the rapid development of industrial enterprises in the ownership of the mold components also changed dramatically, in addition to professional mold factory outside of state-owned, collective, joint ventures, wholly-owned and private has been a rapid development.

As with the accelerating pace of international standards, increasing competition in the market, it has been increasingly recognized product

quality, cost, and new product development enterprises have increased in recent years, the mold for investment in technological progress, technological progress will be seen as an important driving force for enterprise domestic enterprises have popularized the two-dimensional mold CAD, and are starting to use UG, Pro / Engineer, I-DEAS, Euclid-IS and other international common software, individual manufacturers have also introduced Moldflow, C-Flow, DYNAFORM, Optris and MAGMASOFT software, and successfully applied to stamping die design.

trend

(1) a comprehensive promotion of CAD / CAM / CAE technology die CAD / CAM / CAE technology is the development direction of mold design and manufacturing

(2) high-speed milling process of foreign high-speed milling process developed in recent years, significantly improve the processing efficiency, and to get a high surface finish.

(3) die scanning and digitizing system and mold high-speed scanner provides scanning system to scan from a model or physical model of processing required for the desired number of functions, greatly reducing the manufacturing cycle in the development of mold.

(4) milling EDM EDM EDM Milling Technology, also known as invasive as processing technology, which is an alternative to the traditional processing of the cavity by forming a new electrode technology

(5) to improve the die mold standardization of standardization is increasing, estimates that the current use of standard mold coverage has reached about 30%.Developed countries is generally about 80%.

(6) high-quality materials and advanced surface treatment technology and application of high quality steel, the corresponding surface treatment technology to improve the life of the mold it is very necessary.

New Technology Application in the metal forming

New Technology mold stamping application

Die mold manufacturing technology modernization is the basis for industrial the development of science and technology, computer technology, information technology, automation technology and other advanced technologies are continuing to penetrate the traditional manufacturing technology, cross, integration, implementation of its transformation, the formation of advanced manufacturing technologies. Today, CNC wire cut has a very high level of technological development, function quite well, the degree of automation has reached the degree of unattended by Japan Sodick Corporation A500W-E Sodick EDM wire EDM cutting speed has reached the maximum 300mm/min, machining precision can reach ± μm, surface roughness ~ μ ~ in diameter fine thread cutting technology development, can be cut to achieve a complete convex mold, and the radius of and narrow groove cutting cutting technology has been able to taper to 30 ° above the precision machining.