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我所从一九七四年开展轴承套圈温挤压工艺的试验研究以来,在试验室工艺试验成功的基础上,进行了205/02杯形件(12000件)和202/01两件合锻(4600件)温挤压工艺
Since the pilot research on the warm extrusion process of bearing rings was carried out in 1974, based on the successful laboratory test, we have carried out the tests of 205/02 cup (12000 pieces) and 202/01 two pieces Forging (4600 pieces) Warm extrusion process