Talking about the determinants of the dimensional accuracy of stainless steel stamping parts

Stainless steel stamping parts can be found in all areas involved in our lives, such as some electronic devices, auto parts, and even decorative materials. The hardness of these stamping parts can be detected by a certain method, what about its dimensional accuracy? The hardness testing of stainless steel stamping parts is usually tested by Rockwell hardness tester, but there are restrictions on small stamping parts with complex shapes, mainly because it can be used to test the small surface, so it cannot be tested in the ordinary desktop Rockwell hardness. Check on the meter. The dimensional accuracy of stainless steel stamping parts refers to the difference between the actual size of the stamping part and the basic size. The smaller the difference, the higher the dimensional accuracy presented by the metal stamping part. The existence of error is the fundamental reason for reducing the dimensional accuracy of metal stamping parts, and the dimensional error of metal stamping parts is caused by many factors. The analysis proves that the manufacturing precision of the convex and concave molds of the stamping parts; the gap between the convex and concave molds; the elastic recovery of the material after stamping; accidental factors in the production process, such as inaccurate positioning and unstable material properties, all lead to stainless steel stamping The reason for the size error of the piece. Also regarding the surface quality of stainless steel stamping parts, in principle, it cannot be higher than the surface quality of its raw materials. Otherwise, subsequent processes must be added during processing, which will also increase the production cost of stamping parts. Judging from the dimensional error and surface quality, the dimensional accuracy of metal stamping parts can be divided into two types: precision level and ordinary level. Precision stamping parts are the accuracy that can be achieved in the stamping process technology, while the ordinary level is the accuracy that can be achieved by more economical means. When the mold manufacturing accuracy is high, the external dimension accuracy of stainless steel stamping parts can reach IT10 level, and the inner hole size can reach IT9 level. It can be seen that the manufacturing accuracy of the mold is the decisive factor for the dimensional accuracy of stamping parts. The above hardware author's introduction hopes to help you, if you need to know more, welcome to consult: