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通常圆柱形蜗杆都是用成型车刀或铣刀加工 ,效率低而且齿形不易控制 ,质量也不易保证。特别是大批量生产时 ,为了提高生产率 ,采用冷轧工艺 ,不仅满足质量 ,效率大幅度地增加 ,冷轧出来的蜗杆疲劳强度提高 ,耐磨性较好。
Usually cylindrical worm is used to shape turning or milling cutter, low efficiency and difficult to control the tooth shape, the quality is not easy to guarantee. Especially in mass production, in order to improve productivity, using cold-rolled process, not only to meet the quality, efficiency increased significantly, the cold-rolled out of the worm fatigue strength, better wear resistance.