Xiamen shuangyuan is a specialist production instrumentation chassis, for stamping parts, sheet metal processing factory.
Stamping die mold the main material is steel (including tool steel and high-speed steel), sometimes used in cemented carbide.
Stamping dies usually require high hardness and wear resistance, heat treatment is essential.
Die Steel mainly uses the Rockwell hardness test hardness test hardness HRC. When the mold large, inconvenience moving can be used Leeb Hardness Tester. Carbide hardness testing using Rockwell hardness HRA ruler.
In order to obtain high surface hardness and wear resistance, and many die and stamping parts stamping die components to be surface heat treatment, such as the surface nitriding. For such people are very concerned about the mold on its surface hardness and hardened layer depth. For the volume is not too large, mobile and convenient punching mold can be directly on the surface Rockwell hardness tester to test the value of the surface hardness of HRN. Bulky and difficult to move the sample had to use cutting methods, sampling the surface after testing Rockwell hardness tester HRN value. Can also be used Vickers hardness tester test HV value. Another approach is to use the same material made of small test piece, heat-treated under the same conditions, and then measured the hardness values of the specimen as a way to estimate the hardness of die stampings.