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根据三缸曲轴的形状特点,提出一种新的成形方案为:下料—加热—制坯—预锻—终锻。应用UG软件进行了三维造型和模具设计。为了改善平衡板充填性,在制坯模相应部位设计斜坡面,并在所有模具上添加阻力墙。针对高且薄的平衡板部位,采取了曲线分模的方式,合理分配其变形量。Deform数值模拟的锻件各部位充填饱满、飞边分布均匀的且无折叠缺陷。
According to the shape characteristics of the three-cylinder crankshaft, a new forming scheme is proposed: blanking - heating - preform - pre-forging - final forging. Application of UG software for three-dimensional modeling and mold design. In order to improve the filling of the balance board, design the ramps in the corresponding parts of the blank mold, and add the resistance wall on all the molds. For the high and thin balance board parts, take the curve mode, the reasonable distribution of its deformation. Deform numerical simulation of forging all parts filled full, flash uniform distribution and no folding defects.