1. What is the mold material of 1.2379?
1.2379 is a high-carbon, high-chromium alloy tool steel known for its excellent wear resistance and high hardness. After heat treatment, this steel is able to achieve extremely high hardness and good wear resistance, while maintaining dimensional stability. 1.2379 has strong hardenability and is suitable for manufacturing precision cutting tools and wear-resistant parts.
characteristic
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The 1.2379 has the following features:
—— Vacuum degassing refining: ensures the purity of the steel.
—— Spheroidization annealing: make the steel have good cutting performance.
- Special strengthening elements: The addition of vanadium and molybdenum significantly increases wear resistance.
—— Pros:
—— High abrasion resistance
—— High compressive strength
—— Good dimensional stability
- Good processability
- Good toughness
- Excellent resistance to tempering and softening
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Second, the performance and use of stamping die materials
When the stamping die works, it has to bear the loads of shock, vibration, friction, high pressure and tension, bending and torsion, and even work at a higher temperature (such as cold extrusion), the working conditions are complex, and it is easy to wear and tear, fatigue, fracture, deformation and other phenomena. Therefore, the requirements for the material of the mold working parts are higher than those of ordinary parts.
Due to the different working conditions of various types of stamping dies, the requirements for the materials of the working parts of the molds are also different.
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1. Requirements for punching die material
For the working parts of the thin plate punching die, the material is required to have high wear resistance and hardness, and the thick plate punching die is required to have high wear resistance, compressive yield point, in order to prevent the die from breaking or chipping, it should also have high breaking resistance, high bending strength and toughness.
2. Requirements for the material of the drawing die
The material of the mold working parts is required to have good anti-adhesion (anti-seizure), high wear resistance and hardness, certain strength and toughness, and good cutting performance, and the deformation should be small during heat treatment.
3. Requirements for cold extrusion die material
The mold working parts are required to have high strength and hardness, high wear resistance, and a certain toughness is also required to avoid impact breakage. Since there is a large increase in temperature during extrusion, it should also have a certain resistance to heat fatigue and heat hardness