The machining of metal stamping parts is a widely used machining method. In the process of metal stamping, it involves drawing, cutting, punching, flanging, opening and other processes. Creating some problems is very complicated. What are the common problems with metal stamping? Below, we will organize and introduce them.
1. Burr mainly occurs in shear die and blanking die. Burr will occur in the gap between the cutting edge and the cutting edge.
2. Adhesion and scratch on the surface of metal stamping parts or molds due to friction between materials and punches or molds.
3, convex and concave, there are foreign matters (iron filings, rubber, dust) mixed with the uncoiling line.
4, punching size is too big or too small, the size of the punch and the size of the punch difference.
5. When the workpiece is formed, the first contact between the extrusion and the mold is made and a line is formed.
6. Twist, due to uneven stress, poor matching of drawing bar or poor control of press slider, etc., the R Angle or the Angle and strain of the embossing part are caused by twists and turns.
7. The strong pressure of metal stamping parts on the material and the plastic deformation of the material will lead to the increase of the size of the punching hole, and when the strong pressure is reduced, the size of the punching hole will be smaller.
