The research and development technology of the auto parts industry has always been at the industry level. There are specialized technical personnel and R&D centers as support, and a large amount of R&D capital is invested. There is a good marketing model. The development of auto parts related industries is also inseparable from a good marketing model. Not only has a good sales volume in the country, but also has a good sales volume in the international market. Processing can be divided into cutting processing and pressure processing according to the difference in processing methods.
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Common thermal processing includes heat treatment, forging, casting and welding. The first is the requirement for the hardness of the material. For some occasions, the higher the hardness of the material, the better, but it is limited to the hardness requirements of the machined parts. The material to be machined cannot be too hard. And it does not cause chemical or phase changes of the workpiece, which is called cold working.
Generally, processing above or below normal temperature will cause chemical or phase changes in the workpiece, which is called thermal processing. Cold working can be divided into cutting processing and pressure processing according to the difference in processing methods. Common thermal processing includes heat treatment, forging, casting and welding.