为使拉深工件具有平、齐且符合尺寸要求的口部或凸缘外形,都需要进行切边。根据拉深件的形状(圆筒形或盒形、有凸缘或无凸缘)、尺寸(大小和深浅)以及对口部或凸缘外形的不同要求,可以采用不同的切边方法。拉深件切边可以用冲压法,也可以用切削法。这里,将各种冲压切边方法作一汇编介绍。 To make the workpiece has a flat, homogeneous and meet the size requirements of the mouth or flange shape, the need for trimming. Depending on the shape of the drawn part (cylindrical or boxed, with or without flange), size (size and depth), and different requirements on the shape of the mouth or flange, different methods of trimming may be used. Drawing parts trimming can be used stamping method, you can also use the cutting method. Here, a variety of press trimming method for a compilation.