Author: wudejian
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Mr. Gu asked: What kind of steel is used for punching needles that are both sharp and will not crack?
Mr. Gu asked: What kind of steel is used for punching needles that are both sharp and will not crack? Punch a 4.5mm hole on a 1mm thick pure nylon plastic product. The SKD61 punch needle purchased on Taobao is prone to breakage and may not be sharp when punched. The key is that the…
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The hardness of Cr12MoV for powder metallurgy molds has been reduced to 30 degrees, and it finally does not crack, but it is not wear-resistant anymore. Chapter 568
Today, a customer who works in powder metallurgy came to me. His mold has cracked and is no longer wear-resistant. He asked what kind of die steel should be used for powder metallurgy molds? After a detailed conversation, he learned that his bottom mold is now made of Cr12MoV, which is prone to cracking when the…
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Netizens say that DC53 needs to be treated with deep cryogenic treatment to achieve superior performance. Is this true? Article 569
A netizen in the 227th live broadcast room said that DC53 needs deep cooling treatment to achieve superior performance. I think this is the cognition after being poisoned. The performance of die steel is determined by a combination of alloy composition, internal structure, smelting quality, microstructure, heat treatment process, and these five factors, rather than a…
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What is the best red nut mold to use? The current tungsten steel molds are prone to cracking and the cost is too high
During the New Year holiday, some people began to consult about die steel. Just received a consultation from Mr. Hu, what is the best die steel for the red nut mold? The current tungsten steel molds are prone to cracking and the cost is too high. The molds have water-cooled cooling. You make tungsten steel…
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Netizens said that 8566 is even more famous than Wu Dejian, which makes me quite happy. This is the 570th post
Netizens said that 8566 is even more famous than Wu Dejian, which makes me very happy. It’s a good thing when a product becomes more famous than the person behind it. In the 260th live broadcast room, we received positive feedback from 4 netizens. What made me happiest was the feedback about 8566 mold steel.…
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I have filmed 2000 videos about die steel, and I want to summarize and reflect on them. This is the 571st video
On January 3, 2026, I filmed my 2000th video. Actually, I have filmed over 2300 videos along the way, and this is the 2000th one about application cases of die steel. I have also filmed over 100 video diaries and over 100 mini-encyclopedias about die steel, but both of those were intermittent. Among the cases related…
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In some businesses, service is more important than the product. You can’t make the product unique, but you can make the service unique. Handheld Notebook 069
Some people are naturally gifted in business, and their politeness is so impressive that you feel embarrassed to seek out a second option. This morning, I went to the wet market and asked someone to kill a chicken and a duck for me. At the first poultry shop, although they agreed to help me with…
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Nightlife in a small county town
Only at night in a small county town can one feel the festive atmosphere; But apart from food, clothing, and daily necessities, it seems there are no other businesses; Only upon returning home do we realize how important the manufacturing industry is. A city without manufacturing industry will inevitably become hollowed out; It’s not a…
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We all know that imported DC53 die steel is better than domestic DC53, but we don’t know specifically how it is better. Article 572
We all know that imported DC53 is better than domestic DC53, but what specifically makes it better? I don’t know In my 268th live broadcast, netizens engaged in a heated discussion about it. In this live broadcast room, there were many inquiries about DC53 die steel. Some asked how much a kilogram of imported DC53…
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What die steel is suitable for stamping 4mm stainless steel? Mr. Li won the order with 8566. Article 575
In the 273rd live broadcast room, a netizen asked: What die steel is suitable for stamping 4mm thick stainless steel? Stamping 4mm stainless steel involves a typical thick and hard material stamping process, given the hard and thick material. Based on past customer feedback, the primary failure mode of molds is cracking. When selecting die…