The plastic deformation technologies of automotive alternator poles at home and abroad were introduced including sheet metal stamping process,cold extrusion,hot forging-cold sizing,warm-cold compound forming,back extrusion based on divided flow,hot forging-forward extrusion,hot trimming-piercing forming,as well as the short casting-forging compound forming,high speed warm extrusion,one single hot forging process. The processes used in current production have some deficiencies,such as excessive working proce...
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