Category: blog

Now, the market is forcing you to upgrade your tool steel materials. This morning, I received a consultation that the zinc alloy die casting lobster clasp and other products, with dozens of holes in the the first mock examination, used H13 at the beginning, 8407 later, and now 8418, with a hardness of 53HRC, are easy to…

Tiktok netizens left a message asking, what kind of die steel is used for stamping and trimming aluminum plates without aluminum powder? When punching aluminum, it depends on factors such as the thickness of the aluminum, the punching speed, and whether there is refueling. Netizens replied again, 1.0, normal speed, no refueling。  My answer is that…

Received consultation from netizens, stamping 2.3-thick acid washed plate, SKD11、DC53， This corner always falls off. This product is a narrow edge sharp angle stamping with harsh working conditions, requiring the use of tool steel with good anti cracking performance. SKD11 and DC53 are both high carbon cold work mold steels with severe segregation and a large number…

I just got off the plane today and received a consultation from Mr. Zhao about the fracture of the punch made of hard alloy during cold extrusion of No. 20 steel. May I ask if there is any tool steel with higher hardness and better toughness than tungsten steel. Mr. Zhao was introduced by his old customer…

The improvement of aluminum die-casting molds cannot be achieved solely by pressing the solution onto the tool steel. This morning, I received a consultation from Mr. Zhou. I have a set of aluminum die-casting molds that often corrode during core pulling. The new mold has not been put into mass production yet, and there was a…

This morning’s two orders are quite heartwarming to me. One is an old customer who knew that the price of SKH51 had increased significantly, but still paid without hesitation, which made me feel very warm. The recent price increase of tungsten alloy has tripled, forcing the prices of high-speed steel and powder high-speed steel to…

Mr. Mao inquired about punching 7 holes on 8mm thick 45 steel. The current SKH51 punching needle is prone to breakage after punching hundreds of holes. What tool steel should be used? Punch 7 holes on 8mm 45 steel, which is a harsh working condition where the punching hole diameter is smaller than the plate thickness…

 I just received a strange phone call this morning, saying that you need to come to me more often. Mr. Wang is a factory that makes export molds. The molds he is making are not wear-resistant and have been complained by a customer. He wants to find a tool steel with high hardness, good wear resistance,…

Today, a retired national athlete from Jiangsu Province visited and left a deep impression on me. He came by tram, charging once every 300 kilometers, which is equivalent to driving for 3 hours and resting for an hour. It’s over 2000 kilometers from northern Jiangsu to Guangdong. He is a boss who specializes in stamping…

Good news, Mr. Zhao, who bought 8503 die steel from me last year to make stretching molds, just called to give feedback. 8503 has a good effect and has stretched more than 20000 products without sticking materials. The effect is much stronger than Cr12MoV. Also, because the effect of 8503 is stronger than Cr12MoV, in another…

The premise of communication is trust, and someone who doesn’t trust you doesn’t need to communicate anymore. The same person came to ask again a year later, stamping 2.4mm thick stainless steel. Now using DC53 with a hardness of 59HRC, it is easy to crack. Sometimes it can be punched 20000 to 30000 times, and…

A netizen just asked me, what kind of tool steel should be used for large-sized hexagonal nuts made of hot forged 35CrMo material? In early March, there was just such a successful case. Many mold cases, after turning around, have come back to me. Mr. Bao is a hot forged 35CrMo hex nut that was…