1. Powder high-speed steel and tungsten steel are made by sintering metal powder, which has been out of the category of smelting metals. However, tungsten steel is harder, so it is more wear-resistant, but the toughness is not good; Compared with tungsten steel, powder high-speed steel is softer, but the toughness is much improved, and it is much harder than other steels.
2. Tungsten steel has a series of excellent properties such as high hardness, high wear resistance, high strength, heat resistance, corrosion resistance, etc., especially its high hardness and wear resistance, which basically remains unchanged even at a temperature of 500, and still has a high hardness at 1000. However, tungsten steel is not as good as powder steel in terms of toughness while maintaining high hardness.
3. It can stamping 1 thick 304 stainless steel, with tungsten steel with excellent wear resistance, the punch must have to crack the problem, so it can only be abandoned. Mold materials with good wear resistance, tungsten steel is powder steel, such as: PM30 cobalt-containing powder steel with hardness HRC65-67, PM60 high cobalt powder steel with hardness HRC67-69.
4. The best die punch material must be ASP60 punch material, but it is expensive.
The punch material commonly used in continuous stamping dies is pre-hardened punch material SKH-9 high-speed steel. The commonly used punch material for stamping stainless steel is pre-hardened punch material ASP60 powder high-speed steel. The punch material CR12MOV is used for ordinary single punch dies.
5. PM25 for regal type, powder high-speed steel PM25 has good wear resistance, hardness up to HRC61, and long service life of the mold. The toughness is good, and the punch material will not crack. The punch material made of PM25 has a long service life. Case Foshan Liang, stamping 5 thick 201 stainless steel.
6. The best die punch material must be ASP60 punch material, but it is expensive. The punch material commonly used in continuous stamping dies is pre-hardened punch material SKH-9 high-speed steel. The commonly used punch material for stamping stainless steel is pre-hardened punch material ASP60 powder high-speed steel. The punch material CR12MOV is used for ordinary single punch dies.
1. The higher the carbon content of stainless steel, the higher the hardness, because the hardness generally depends on the content of carbide, and the sharpness retention of steel with high hardness is better. The higher the content of chromium element, the more prominent the rust-carrying ability of kitchen knife steel, and the less likely it is to rust.
2. Powder steel is good. The crystal particles of powder steel are delicate, and the diameter of each crystal is only 1 5-1 10 of ordinary carbon steel, that is, the blade can be ground to a very fine level without crystal peeling, and can achieve extremely high sharpness.
3. The difference between powder steel, high-speed steel and high-carbon steel is that the powder retains a microgranized structure when it is refused at low temperature, and it is linked to each other like rice candy. High-carbon steel is easy to rust, that is, there are obvious defects in the microstructure, compared to rice candy, it is only equal to mung bean cake.
4. A tool steel with higher performance, good toughness, can be said to be better than any other carbon steel. Like all CPM steels, CPM M4 uses Crucible Corporation's patented technology, the Crucible Particle Metallurgy Process (abbreviated CPM), which produces a product that is very homogeneous, stable and millable compared to conventional processes.
5. Powder steel. Powder steel has good ductility and is harder, making it a very high-quality steel. Powder steel, also known as powder high-speed steel, is made of alloy powder, and it has been manufactured for twenty or thirty years. Because it is very resistant to high temperature and wear, it will be used in many machine tools.