Analysis of the current situation of automobile body manufacturing technology in China?

2019-11-27 10:19:02

The rapid development of China's automobile industry has brought broad development space for the domestic automobile mold. In addition, due to the cost and market factors, the focus of mold manufacturing in developed countries has gradually shifted to the developing countries represented by China. The comprehensive factors at home and abroad promote the rapid development of domestic automobile die industry, and many new automobile die enterprises appear.

At present, China's automobile manufacturing industry has reached a large scale, and its manufacturing technology is gradually in line with the international leading level. In terms of advanced technologies such as mold and laser welding, domestic automobile manufacturers should further improve their independent research and development and application capabilities. Under the background of the rapid development of the domestic automobile industry, the automobile manufacturing industry that I have lived will certainly have greater development.

Automobile body manufacturing technology mainly includes four major processes: stamping, welding, coating and general assembly.

Stamping is a very important link in the automobile manufacturing process, because it not only determines the quality of the body, but also the quality of welding to a large extent depends on the situation of stamping parts. It is important to ensure the quality and accuracy of stamping. Rebound and cracking of materials need to be placed.

The stamping of the car body generally includes making the inner and outer covers. At present, the molds of the inner panel are usually made by our own. And the production of external panel mold, many domestic vehicle manufacturers mainly outsourcing to foreign countries.

At present, spot welding is the main welding method in China. As a traditional welding process, spot welding after years of development, as long as the design of the welding point is reasonable, after mechanical analysis and calculation, spot welding can ensure the required strength. At the same time, spot welding has the advantage of low price. At present, spot welding is widely used as welding technology in domestic auto manufacturers. In joint ventures, spot welding also accounts for about 80% of the welding process.