The boss consulted, stamping 0.2mm 201 stainless steel and adding hard materials. Now use high-speed steel SKH-51. It feels not wear-resistant. What material can use to make a lifespan of more than 500,000 yuan?
0.2 mm thin plate hard stamping only requires high wear resistance and high surface finish. If the mold life is more than 500,000, Huang Zipeng of Yuhui Mold Steel believes that powder high-speed steel must be used.
entry-level powder high-speed steel, you can choose PM23 (ASP23) and PM4. PM23 (ASP23) has HRC64-66 hardness, and its wear resistance is more than twice that of SKH-51. Because it is powder metallurgical molding, with good process, uniform structure, and no carbide segregation phenomenon, the surface of mold steel has good anti-adhesion properties and will not scratch and wear quickly. As long as the processing is in place, the actual service life is more than 2 times.
powder high-speed steel PM4 alloy is similar to PM23 (ASP23). Due to its higher carbon and vanadium content, it has better wear resistance and is cheaper than PM23. In such working conditions, it can be used as a affordable alternative to PM23.
However, PM4 does not have small pieces of trial type, and PM23 has it, so you can first use powder high-speed steel PM23 sample. After the trial is successful, consider whether it is PM23 (ASP23) or PM4 to improve the mold.
Yuhui mold steel Huang Zipeng has a boss punch 0.35mm SK4 steel hard material, the material hardness is about HV560, the product is like mosquito coil, when the punch is made of high-speed steel SKH-51, it will wear quickly and easily collapse. I switched to PM23 powder high-speed steel , which can continuously stamp more than 200,000 products. The punch has no cracking problem and the effect is relatively satisfactory.
The boss in front of the screen, if there is a similar working condition, you can also try it in Yuhui Mould Steel Huang Zipeng!
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-