型面复杂的大型厚板覆盖件,它的拉延、压筋和弯曲、一般都是一次成型冲压出来的,以防止材料因多次变形而使表面有痕迹。所谓厚板是指厚度在10毫米以上的板材,为了保证冲压件的强度、硬度、韧性及其他一些特殊性能的要求,有些还需要采用合金钢材压制,这就决定了该类零件必须采用热冲压工艺生产。 Large complex plate thick plate cover, it’s drawing, compression and bending, are generally a stamping out to prevent the material deformation caused by repeated traces of the surface. The so-called thick plate is the thickness of 10 mm above the plate, in order to ensure the strength of stampings, hardness, toughness and other special requirements of performance, some also need to use alloy steel, which determines the type of parts must be hot stamping Process production.