Metal stamping parts-reasons and solutions for poor heat treatment of molds

The small author company has focused on the customization of metal stamping parts for 18 years. The molds for all kinds of products are designed and manufactured by ourselves. Today, the host will share with you the analysis of the heat treatment of metal stamping parts—metal stamping dies are prone to cracks after quenching, causing mold scrap Reasons for the occurrence: 1. The original structure of the metal stamping die steel material has serious carbide segregation. 2. Poor forging process, such as high forging heating temperature, small deformation, high stop forging temperature, slow cooling rate after forging, etc., so that the forging structure is coarse and there are network, band and chain carbides, which make the ball It is difficult to eliminate during chemical annealing. 3. Poor spheroidizing annealing process, such as too high or too low annealing temperature, short isothermal annealing time, etc., can cause uneven spheroidizing annealing organization or poor spheroidization. The metal stamping die is prone to cracks after quenching, resulting in die scrap solutions: 1. According to the working conditions of the die, the production batch and the strength and toughness of the material itself, choose a good quality metal stamping die blank. 2. Improve the forging process or adopt normalizing preheat treatment to eliminate the inhomogeneity of network and chain carbides and carbides in the raw materials of stamping parts. 3. The high-carbon die steel with severe segregation of carbides that cannot be forged can be subjected to solid solution refining heat treatment. 4. Formulate the correct spheroidizing annealing process specification for the die blank of the forged metal stamping parts, and adopt quenching and tempering heat treatment and fast uniformly fine spheroidizing annealing process. 5. Reasonably install the furnace to ensure the uniformity of the mold blank temperature in the furnace. The above article is from the original () enterprise original in 18 years of metal stamping parts processing and auto stamping parts customization. Please indicate the source for reprinting. [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