后围角拉延工艺及模具设计

Driver's Cab Back Support Stretching Process and Mould Deign

改变以前单件生产的拉延工艺，采用中心对称一模两件的方法设计和制模，较好地解决了压力中心偏移问题，使产品质量稳定。大大提高了产品合格率及设备、工时和材料的利用率，创造了较好的经济效益。

Through reforming the previous stretching process for single piecemanufacturing, this paper designs and makes mould by adopting the parallelismmethod and -one mould for two pieces'. Therefore, the problem of movement ofpressure center is solved, and the product quality is kept steadly. So thequantification rate is enormously ensured, and the equipment, working hourand the availability of the materials are also improved.