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目前目内轴碗生产工艺是:铜板(δ2.3条料)—下料(φ37.5)—软化退火—拉伸—冲孔—车内径及滚道—车端面及圆弧R—研磨滚道—热处理—抛光滚道(▽6)—表面处理。我厂的复合冷成形工艺是:钢板(δ2.5条料)—下料(φ36.5)—复合冷成形—热处理—表面处理。复合冷成形工艺与原工艺相比,轴碗生产工序由11道减少为5道,生产周期缩短4/5,成形生产率提高10倍,占用设备减少5台,工装模具减少5套,材料利用率提高5.4％,取消软化退火,节约了大量能源。新结构的复合冷成形模具经大批量生产
At present, the production process of the inner shaft bowl is as follows: copper plate (δ2.3 strip) - unloading (φ37.5) - softening annealing - stretch - punching - inner diameter and raceway - car face and arc R- Road - Heat Treatment - Polishing Raceway (▽ 6) - Surface Treatment. Our cold compounding process is: steel (δ2.5 strip material) - cutting (φ36.5) - composite cold forming - heat treatment - surface treatment. Composite cold forming process compared with the original process, the shaft bowl production processes from 11 to 5, shorten the production cycle 4/5, forming productivity increased 10-fold, occupancy equipment to reduce the 5 sets of tooling to reduce the 5 sets of material utilization Increase 5.4%, cancel softening annealing, save a lot of energy. The new structure of the composite cold forming die by mass production