This paper introduces a key component in the car gearbox—the composite forming process of cold upsetting, extrusion and punching of the third and fourth gears. The production process has high degree of automation and good forming quality, which greatly reduces the workload of post-forging machining, and saves a lot of metal raw materials and machining costs.
Steel I Beam,Channel Steel,Steel Structure
Chengsheng Steel Pipe Co., Ltd , http://www.sdsteelpipes.com