Cold forging forming process of three-four-speed double gear of sedan
November 05, 2018
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.