论文部分内容阅读
弯曲件在冲压生产中不仅量多而且生产也较困难。由于回弹的存在,使弯曲件的尺寸精度往往难以达到要求。钢模弯曲时,要求凸、凹模之间有适当的而且是各处均匀的间隙,给修模带来困难,实际生产中也难以做到。这样势必使生产周期延长,成本提高,弯曲件质量不易保证。实践证明,利用聚氨酯橡胶模进行弯曲,不仅能简化模具,减少工序,而且有助于提高弯曲件的尺寸精度,更能提高弯曲件的表面质量。这是由于凸模和凹模中一方是硬的,一方
Bending parts are not only more in stamping production but also more difficult to produce. Due to the existence of springback, it is often difficult to meet the requirements of dimensional accuracy of the bending part. Steel bending, the requirements of convex, die between the appropriate and uniform gap around, to repair difficulties, the actual production is difficult to achieve. This will inevitably prolong the production cycle, cost increases, the quality of curved parts is not easy to guarantee. Practice has proved that the use of polyurethane rubber mold bending, not only to simplify the mold and reduce the process, but also help to improve the dimensional accuracy of the curved pieces, but also improve the surface quality of curved pieces. This is because one of the male and female dies is hard and one is on the other