The boss consulted, stamping 1.5mm 201 stainless steel , the punch is 4.1*2.1 size, there is a protruding narrow edge strip on the punch with sharp corners. Now use DC53, the punch will always break, and the protruding position will easily collapse. I want to ask what mold steel is good? Yuhui Mould Steel Huang Zipeng answered 48
1.5mm stainless steel stamping, which is thin plate stamping. When the narrow-side punch stamping of thin plates encounters cracking problems, Huang Zipeng of Yuhui Mold Steel recommends using 8566 mold steel or 8566 reinforced type with good crack resistance.
has boss stamped 1.5mm 201 stainless steel, material hardness HV245, and sharp corners with R0.5 on both sides. The original mold blade edge is made of DC53. If you hit 10,000 times, the sharp corner will collapse. Later, the cracking problem was solved with 8566 mold steel.
Yuhui mold steel Huang Zipeng and Boss Chen stamped 0.18mm 301 stainless steel hard material, material hardness HV500, punching head is like the sun, the outer ring has a circle protruding long strips. This pair of molds is punched at a speed of 260 times per minute, and is a high-speed punched die. Now I am using wire rubbing board high-speed steel SKH-9 (SKH-51), and the punch and bottom mold will quickly crack.
The material properties of the wire rubbing board are inherently unstable, and it has a circle of slender outer teeth, which is prone to fatigue and cracking. After Boss Chen found us, he first replaced the punch with 8566 mold steel. After more than 10 days of use, Boss Chen replied that the cracking problem of the slender external punch has been solved, and he will be ready to replace the lower mold with 8566 mold steel.
8566 The toughness of mold steel is 4 times that of high-speed steel SKH-9 and 2 times that of D2. In the cruel working conditions such as narrow side stamping, sharp angle stamping, stamping hole diameter smaller than the plate thickness, many bosses have already used 8566 mold steel to solve the problem.
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!
