关于机械论问翻译(英文版)（doc 7页）

关于机械论问翻译(英文版)内容提要：
Welding is a modern mechanical manufacturing process a necessary way to get car manufacturers at a wide range of applications. Automobile engine, gearbox, axle, frame, body, inside the six can not be separated from the total Chengdu welding techniques. At the manufacture of automotive components, spot welding, projection welding, seam welding, roll welding, arc welding electrodes, CO2 gas shielded arc welding, argon arc welding, gas welding, brazing, friction welding, electron beam welding and laser welding, etc. types of welding methods, because of spot welding, gas shielded arc welding, brazing with the production volume is very large, a high degree of automation, high-speed, low power, welding deformation of small, easy-to-use features, so the coverage of auto body sheet metal parts is particularly suitable, so , in automobile production in the most widely used. Investment costs at about 75% in spot welding, other welding methods account for only 25%.    With the development of the automobile industry, auto-body welding production line is also gradually develop in the direction to the fully automated, in order to catch up with international standards, improve productivity at the same time, requires efforts to improve the quality of automobile manufacturers. As we all know, implementation is a prerequisite for automated manufacture of parts and components to high precision, the smallest hope of welding distortion, welding sites want fresh appearance, and called for more and more high-welding technology. Facing our country's accession to WTO opportunities and challenges, welding area of the popularization and application of new technologies for the automotive industry to enhance the brand has an extremely important role.

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