Causes of cracks in metal stamping die

Anything you have done in a metal stamping factory will encounter die cracking during stamping processing. This is also a common thing. So what are the reasons for die cracking during metal stamping processing? The following Dongguan metal stamping factory-the author has a variety of situations from the immediate cracking of the template, from the purchase of raw materials for stamping dies to the analysis of the reasons for the stamping operation process; 1. Dongguan metal stamping processing-blanking is not satisfactory before manufacturing. Magnetic solution, no return tip; there are broken needles, broken bullets and other jams in the manufacturing; there is no leakage, or rolling and blocking of the feces when assembling the mold, this is the most common point, if the assembling master does not pay attention This situation is most likely to occur when there are many blanking holes, or when the mold has a protective layer cushion. 2. Dongguan hardware stamping processing-design plan processing technology The mold compressive strength is insufficient, the wound interval is too close, the mold design is unscientific, and the number of stencils is insufficient without cushions. 3. Dongguan hardware stamping processing-negligence of wire cutting. Hanging wire cutting, wire cutting gaps to solve the error, did not clean the corners and wire cutting mildew layer hazards. The tooth surface of the stamping die is mostly processed by wire cutting. Because of the thermoelectric effect of wire cutting and the effect of electrolysis, the mold manufacturing surface creates a thin and thick mildew layer, which leads to reduced surface strength and microscopic cracks. This leads to the initial damage of the wire cutting stamping die and immediately harms the cold of the mold. The maintenance of the punching gap and the punching process of Dongguan hardware-the surface is very easy to chip and reduce the mold life. Therefore, in the on-line cutting process, effective electrical standards should be selected to try to avoid the deep layer of mildew. 4. Quenching and tempering treatment: Poor heat treatment and quenching processing technology causes deformation. Practical experience, the heat treatment quality of the mold is very harmful to the characteristics and service life of the mold. From the analysis and statistical analysis of mold invalidation, it is known that the 'safety accidents' of mold invalidity caused by thermal negligence account for about 40%. 5. Dongguan hardware stamping processing-the use of high-speed punching machines and equipment. High-speed punching tonnage, insufficient cold punching pressure, and probably too deep adjustment of the die. The precision and rigidity of stamping machine tools (such as stamping machines) are extremely important for the damage to the service life of stamping dies. The high precision and rigidity of the stamping machine tool greatly increase the service life of the stamping die. For example, the raw material of the stamping die for the complicated ferrite core is Crl2MoV, which is applied on the general open-type stamping machine, and the average regrind service life is 1-3 million times; while the application on the new high-precision stamping machine, the regrind service life of the stamping die reaches 6-12 million times. Hardware, a fixed and qualified large-scale supplier supplying raw materials, a hardware stamping parts manufacturer with 15 years of experience, monthly mold processing capacity of more than 100 sets, daily production capacity of 3 million strokes. Inquiries: