汽车九州体育
生产中采用了大量的冷冲压工艺适合汽车九州体育
工业多品种、大批量生产的需要。在中、重型汽车中，大部分覆盖件如车身外板等，及一些承重和支撑件如车架、车厢等汽车零部件都是汽车九州体育
。用于冷冲压的钢材主要是钢板和钢带，占整车钢材消耗量的72.6%，冷冲压材料与汽车九州体育
生产的关系十分密切，材料的好坏不仅决定产品的性能，更直接影响到汽车九州体育
工艺的过程设计，影响到产品的质量、成本、使用寿命和生产组织，因此合理选用材料是一个重要而复杂的工作。
A large number of cold stamping processes have been used in the
production of automotive stamping parts, which are suitable for the
needs of various kinds and mass production of automotive stamping parts
industry. In medium and heavy trucks, most of the panels, such as body
panels, and some load-bearing and supporting parts such as frame,
carriage and other automotive parts are automotive
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www.jiankonggan.org.cn www.jiankongligan.org.cnstamping parts. The
steel used for cold stamping is mainly steel sheet and strip, accounting
for 72.6% of the total steel consumption of the vehicle. The cold
stamping material is closely related to the production of automobile
stamping parts. The quality of the material not only determines the
performance of the product, but also directly affects the process design
of automobile stamping parts, and affects the quality, cost, service
life and production organization of the product. Therefore, the rational
selection of materials is one of the most important factors. An
important and complex task
