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Precision stamping die is an important equipment needed for stamping process, which is related to the quality of precision stamping parts. Therefore, there are high requirements for the manufacturing of precision stamping die. In order to ensure the manufacturing quality of precision stamping die and reduce the production cost, the materials for manufacturing precision stamping die should have the following process properties:
1. Malleability:
It has low hot forging deformation resistance, good plasticity, wide forging temperature range and low tendency of cold forging crack and precipitation of network carbide.
2. Machinability:
Large cutting amount, low tool loss and low surface roughness.
3. Annealing process:
The spheroidizing annealing temperature range is wide, the annealing hardness is low and the fluctuation range is small, and the spheroidizing rate is high.
4. Hardenability:
After quenching, it has uniform and high surface hardness.
5. Hardenability:
After quenching, a deeper hardened layer can be obtained, which can be hardened by using a mild quenching medium.
6. Grindability:
The grinding wheel has the advantages of small relative loss, large grinding consumption without burn, insensitivity to the quality and cooling conditions of grinding wheel, and no grinding damage and crack of precision stamping die.
7. Sensitivity to oxidation and decarbonization:
When heated at high temperature, the oxidation resistance is good, decarburization speed is slow, it is not sensitive to heating medium, and the tendency of producing pockmarks is small.
The manufacturing of precision stamping die generally requires several processes such as forging, cutting, heat treatment, etc., with high processing difficulty and high requirements for manufacturing materials. Automobile parts should have good processing performance, so as to ensure that there are no process defects and stable quality in the manufacturing process of precision stamping die.
