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早在60年代,我们就用电顶锻镦粗棒料来代替锻打镦粗的工艺,曾收到了良好的效果。当时由于军工生产,没有广泛推广使用。如今我们在“军转民”生产中又碰到这个问题,同样用电顶锻镦粗工艺解决了难题。现将我们在生产中遇到的零件,用两种镦粗方法进行分析和比较:汽车变速箱操纵杆(见图1),材质为45钢棒料,中间粗,两端细,一
As early as the 60s, we used the electric upsetting upsetting bar instead of forging upsetting process, has received good results. At that time, due to military production, there is no widely promoted use. Now we are in the “military turn civilian” production encountered this problem, the same upsetting upsetting technology to solve the problem. Now we encounter in the production of parts, with two upsetting method for analysis and comparison: Automotive gearbox lever (see Figure 1), made of 45 steel bar material, the middle of coarse, thin at both ends, one