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一种由俄罗斯开发的冷成形工艺通过在美国密执安州Ann Arbor以Diamona Tek牵头的一家合营公司(为美国USP Holdings公司拥有)和基辅乌克兰科学院超硬材料研究所而传入美国。 据USP Holdings公司副总裁Marko M.G.Slusarc-zuk博士称,在欧洲汽车工业中广泛采用此项工艺制造转向盘轴的花键套和万向节传动轴花键连接头。此种称为变形拉削的冷成形工艺可不损耗工件材料加工出内花键,另外,还可相应地提高工件硬度和强度,并得到Ra0.08～0.32μm的表面粗糙度。该工艺用于加工
A cold forming process developed by Russia was introduced to the United States through a joint venture led by Diamona Tek, Ann Arbor, MI, owned by USP Holdings, a US company and the Institute of Superhard Materials, Kiev Ukrainian Academy of Sciences. According to Dr. Marko M.G.Slusarc-zuk, vice president of USP Holdings, the spline sleeve and universal joint spline connection for the steering wheel shaft are widely used in the European automotive industry. Such a cold forming process known as deformation broaching does not deplete the workpiece material to produce the internal spline. In addition, the hardness and strength of the workpiece can be increased accordingly, and the surface roughness of Ra0.08 to 0.32 μm can be obtained. This process is used for processing