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HF131汽车后制动器底板(图1.以下简称底板),在汽车冲压件中是比较难加工的零件。它的阶梯层次多,形状复杂、尺寸精度较高,形状误差较严、某些部位的圆角半径小于板料的厚度,在工艺安排上由热
HF131 rear brake brakes (Figure 1. hereinafter referred to as the floor), the car stamping parts is more difficult to process parts. Its multi-level ladder, complex shape, high dimensional accuracy, shape error is more stringent, some parts of the fillet radius is less than the thickness of the sheet in the process by the heat