Reasonable gap's influence on the precision stamping parts and precision molds

Because of the existence of precision stamping materials elastic deformation appears at the end of the blanking elastic recovery, and make the size deviation with the convex concave die cutting edge dimension, and stamping parts blanking clearance elastic deformation size and has a direct relationship, so the reasonable cutting clearance in precision stamping process is very important. Precision stamping clearance increases, the metal level of inward pull increase the elastic recovery make workpiece size increases, stamping elongation increase, elastic recovery workpiece size decreased; Hour intervals between, the compression degree increases, the hole size is reduced, the metal by the internal pressure increases, the workpiece size increases; Because of stamping parts and convex and concave mold wall, there is friction between the small gap friction, die life is short, the blanking process, between the punch and punch, concave die and fall have friction materials, the smaller the gap, the greater the friction, so the gap is too small to die life is very bad, and the larger gap can make the side of the punch and die and friction between materials is reduced, reducing the gap uneven phenomenon to improve die life. 【 Relevant recommendation 】 Details: how much do you know the new energy automotive stamping parts? Details: sharing details of stamping processing industry: precision metal stamping parts figure how to draw, please be aware that this several steps