Author: wudejian
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For stamping 2mm stainless steel, 8566 anti-chipping steel is highly recommended; compared to other die steels, 8566 offers excellent value for money.blog 171
For stamping 2mm stainless steel, I still recommend 8566 anti-chipping steel because it offers excellent value for money. This afternoon, I received inquiries from two customers stamping 2.0mm stainless steel. One had chosen the wrong material—Cr12MoV is prone to chipping—while the other used the very expensive ASP23 material, but it developed burrs at the wear points…
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It’s not about the size of the client, but the quality.blog 170
In business, dealing with difficult customers can lead to a whole host of problems. Just a few days ago, we had a case where we accidentally shipped 8566 chipping-resistant steel (35x100x185) instead of the requested 8503 mold steel (35x100x200). The price difference was only 348 yuan, but once he realized we’d sent the more expensive 8566…
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Yuhui’s high-toughness LG mold steel contains half the impurities of the national standard and is on par with imported steel. blog 169
The final results showed that the impurity levels in Yuhui’s high-toughness LG mold steel were half those of the national standard and on par with imported steel. With that, my worries were finally put to rest, and I felt relieved. Here’s what happened: Last week, I received a “complaint” from Mr. Lan stating that the surface…
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Why is there a 10-fold difference in punch life when punching 3mm pickled sheet metal using punches cut from the same DC53 wire?Post No. 564
Mr. Jin said, “I was rough-blanking 3mm-thick pickled sheet metal. I bought the same piece of DC53 hard steel from Kunshan and used wire-cut dies to make the punches. The first one cracked after punching 20,000 pieces, and now this second one has cracked after only 2,000 pieces. What could be the cause?” Indeed, when punching…
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The higher the hardness of die steel, the better its wear resistance—but this statement comes with a caveat.blog 167
When the hardness of die steel is below 58 HRC, wear resistance increases with increasing hardness; in other words, as we often say, the higher the hardness, the better the wear resistance. However, when the hardness of die steel exceeds 58 HRC, wear resistance is determined by the type and morphology of the carbides. The microstructure…
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I thought that once I found out the grade of the die steel, the problem of the die cracking would be solved, but after three months of struggling, it still wasn’t resolved.blog 166
Some people come to me for advice on die steel, thinking that once they know the grade, their problem is solved. But there was one person who, even after learning the die steel grade, spent three months struggling with the issue—yet the problem of the die cracking remained unsolved. He was stamping 0.15mm-thick 304 stainless…
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Cold-forging dies for aluminum optical modules made from 8407 die steel wear out and become scrap after producing just 10,000 units; high-toughness LG die steel must be used instead.blog 165
Between yesterday and today, I’ve received inquiries from two customers regarding the rapid wear of cold forging dies for optical modules. Cold forging dies for optical modules experience rapid dimensional wear and require high precision. Currently, we’re using 8407 die steel, but the dimensions wear out and exceed tolerances within two days at most, and…
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The end user has specified that the mold manufacturer should purchase Yuhui LG mold steel, but the mold manufacturer will not do so; specifying the purchase is pointless.blog 164
Even when specified, the mold manufacturers won’t buy it. Although end users specify that mold makers should use Yuhui’s high-toughness LG mold steel, the mold makers simply won’t purchase it. A customer just came in to complain that while Yuhui’s LG steel no longer cracks in cold heading dies for aluminum parts, its wear resistance isn’t…
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An aluminum forming plant has once again purchased 90 pieces of high-toughness LG die steel from Yuhui.blog 163
I saw these 90 pieces of machined, high-toughness LG die steel blanks in the workshop, ready for shipment. I’m in a good mood, so I wanted to share this with everyone. This customer manufactures cold-extruded, shaped, and bent aluminum products. Previously, they used Cr12MoV and SKD11, both of which were prone to sticking to aluminum shavings, resulting…
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Mr. Long asked me what type of die steel to use for cold-forming red copper so that it doesn’t crack. I’ve tried three different types of die steel, and they all cracked.blog 162
Don’t assume that just because a customer calls you five times, they’re going to place an order. They’re not calling to buy your die steel; they’re just calling to confirm whether their understanding is correct. On May 26, Mr. Long called me and asked what kind of die steel he should use for cold extrusion of red copper to…
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Which die steel is best for stamping phosphor bronze? 8566 die steel can withstand 1 million cycles when stamping 0.3mm phosphor bronze.blog 161
Mr. Lu asked, “What die steel works best for stamping phosphor bronze?” Molds for stamping phosphor bronze are prone to copper powder adhesion. I asked him to clarify: “What thickness of phosphor bronze are you stamping? What die steel are you currently using? Are you experiencing corner chipping, or is it a copper powder adhesion issue?” He is stamping…
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When handling customer complaints, be a patient listener, let the customer finish speaking, and clearly understand their concerns.blog 160
When handling customer complaints, don’t take a confrontational approach; instead, put yourself in their shoes and listen to their concerns. Sometimes, what you think is not necessarily what the other person wants. If you start with a confirmation bias—assuming that the other person’s concerns are the same as your own—then everything you do afterward will…