冲压工艺术语（3）
压平：利用压力迫使材料产生塑性变形，从而使折弯的竖边反方向打平到折弯前的平行平面上，形成双层材料从而去除了锐边
成形：依靠材料流动而不是依靠材料分离使工程料片改变材料形状和尺寸的冲压工序的统称
半剪：用冲子挤入工程料片的一面，迫使材料流入对面凹坑以形成凸成的一种冲压工序。
Stamping process terminology (3)
Flattening: using pressure to force the material to produce plastic deformation, so that the vertical edge of bending is flattened in the opposite direction to the parallel plane before bending, forming a double-layer material to remove the sharp edge
Forming: a general term for the stamping process that changes the shape and size of materials by material flow rather than by material separation
