Category: blog

Bearing steel must be highly pure in terms of non-metallic inclusions. Non-metallic inclusions have a significant impact on the mechanical properties of bearing steel, particularly its contact fatigue performance, and thus affect the service life of bearing components.  From a metallurgical perspective, producing bearing steel with low levels of non-metallic inclusions and high purity has…

What’s the best material for stamping 3mm stainless steel? We’re currently using Cr12MoV, as asked by a viewer during the 300th live stream. Stamping 3mm stainless steel involves stamping thick, hard material. The stamping process generates significant vibration, which can easily cause the punch to fracture or the retainer to snap. Cr12MoV is too brittle—it is…

Molds with high glass fiber content made from quenched and tempered S136 steel will develop flash after producing just over 100,000 parts.  This is a situation many netizens have reported to me. Today, another netizen reached out—he’s injection molding PPS compound reinforced with 40% glass fiber. He’s currently using S136 mold steel, quenched and tempered…

A netizen commented under the video, asking, “Isn’t it said that DC53 has a high chromium content and better rust resistance?”  This statement is incorrect.  DC53 has a carbon content of 1.0%. Although its chromium (Cr) content is 8.0%, the carbon-to-chromium ratio is low, so it cannot form a rust-resistant passivation layer. Therefore, DC53 is…

Yesterday I went to Hong Kong on business and deliberately chose to walk there. I passed by many places with interesting stories behind them, which was pretty exciting. People need to get out and about; otherwise, you’ll end up thinking the world is just what you see every day. You commute to and from work…

Today, a forging client visited our factory to inspect high-toughness LG die steel and shared some insights with me that I felt were worth noting. In the forging and pressing market, current production capacity is still unable to meet future market demand. Therefore, although the technical barriers in the forging and pressing industry are high, market…

LG is the nemesis of red copper. This was a comment left by a netizen during my 299th live stream.  He works with cold-extruded red copper. His exact comment was: “For cold-extruded red copper, LG offers outstanding quality—it’s practically indestructible. I used to get 5,000–10,000 cycles, but now with LG, I can get 50,000 cycles.…

Mr. Wang, who’s been on my WeChat for many years, asked a question in my livestream: “I have a product made from 45 steel. Currently, I’m using 8566 steel for the punch, which has six sharp corners. The corners keep breaking off—what’s the problem? I only need to stamp about 1,000 products before the corners…

As the workday was winding down, I received some good news and wanted to record a video to mark the occasion. When punching 1mm-thick steel at a speed of 200, punches with minimal flange width are prone to breaking, but Yuhui 8566 crack-resistant steel can withstand 1.5 million punches.  Mr. Guo operates a high-speed punch press with…

In our social lives, moral character is more desirable and important than intelligence—and people do indeed want to possess ideal personality traits.  Among the top 10 traits rated as the most positive, five are explicitly used to describe moral behavior: sincerity ranks first, followed by integrity, loyalty, honesty, trustworthiness, and reliability.  Other studies have confirmed…

Last night, July 17, 2026, I hosted a one-hour live stream—my 299th live stream.  The live stream reached 9,579 people, had 657 viewers, with an average watch time of 1.67 minutes per viewer. The average number of concurrent viewers was 15, with a peak of 24, and I gained 10 new followers.  The metrics for…

I didn’t take a nap at noon today because I was having lunch with a client.  After more than a month of discussions, the mold technician, accompanied by his boss, came to our company today for a face-to-face meeting. The trip from Shenzhen to Dongguan takes over an hour, so the fact that the boss…