Common causes of die cracking of metal stamping parts

The die material of metal stamping parts is not good, and it is easy to crack in the subsequent processing, so the cold stamping die material should meet the following requirements as possible: Good process performance. Usually according to the material characteristics of the stamping parts, production batch size, precision requirements, etc., stamping die materials with excellent performance are selected, while taking into account its processability and economy. 1) Raw materials for stamping parts. In actual production, due to the excessive thickness tolerance of the raw materials of the external pressure metal stamping parts, large fluctuations in material properties, poor surface quality (such as rust) or unclean (such as dirt), etc., it will cause increased mold wear and easy chipping, etc. Adverse consequences. Therefore, attention should be paid to: ①Use materials with good stamping processability as much as possible to reduce stamping deformation force; ②Strictly check the grade, thickness and surface quality of the raw materials before stamping, and wipe the raw materials clean, and clean the surface if necessary Oxide and rust; ③According to the stamping process and the types of raw materials, softening treatment and surface treatment can be arranged when necessary, and suitable lubricant and lubricating processes can be selected. 2) Layout and edging. Unreasonable reciprocating feeding layout method and too small overlap value will often cause rapid wear of the mold or crush damage to the convex and concave molds. Therefore, while considering improving the utilization rate of materials, it is necessary to reasonably select the layout method and the edge value according to the processing batch, quality requirements and mold matching gap of the parts to improve the life of the mold. [Related recommendation] Learn more: How much do you know about new energy automobile stamping parts? Learn more: Experience sharing in the stamping processing industry Learn more: How to draw a drawing of precision metal stamping parts, please understand these steps