Analysis of the relationship between hardness testing of metal stamping parts and stamping processing

Hardness testing and stamping processing of metal stamping parts: The properties of stamping parts directly affect the quality of processing, and the hardness value is an important indicator that determines the processing of stamping parts. 1. Brinell hardness: It is mainly used to determine the hardness of metal stamping parts, precision metal stamping parts, hot-rolled blanks and annealed parts, and the measuring range is ≯450. 2. Rockwell hardness: HRA is mainly used for high-hardness specimens to determine the hardness of materials and surface hardness above HRC67, such as cemented carbide, nitrided steel, etc., with the measurement range HRA>70. HRC is mainly used to determine the hardness of steel parts (such as carbon steel, tool steel, alloy steel, etc.) after quenching or tempering, and the measurement range is HRC20~67. 3. Vickers hardness: used to determine the hardness of thin parts and steel parts, and can also be used to determine the hardness of surface hardened parts such as carburizing, cyanidation, and nitriding. The hardness test of metal stamping parts adopts Rockwell hardness tester. Small stamping parts with complex shapes can be used to test the surface is very small, can not be tested on the ordinary desktop Rockwell hardness tester. The processing of metal stamping parts is the production technology of using the power of conventional or special stamping equipment to directly subject the sheet metal to the deformation force and deform in the mold, so as to obtain product parts with a certain shape, size and performance. Sheet materials, molds and equipment are the three elements of stamping processing. Metal stamping processing is a method of metal cold deformation processing. Therefore, it is called cold stamping or sheet stamping, or stamping for short. It is one of the main methods of metal plastic processing (or pressure processing), and it also belongs to material forming engineering technology. The die used for stamping parts is called stamping die, or die for short. The die is a special tool for batch processing of materials (metal or non-metal) into the required stamping parts. Punching dies are very important in stamping. Without a die that meets the requirements, mass stamping production will be difficult; without advanced stamping dies, advanced stamping processes cannot be realized. The stamping process, die, stamping equipment and stamping materials constitute the three elements of stamping processing. Only when they are combined can the metal stamping parts be obtained. 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