Category: blog

It is generally accepted that steel with a tensile strength of o>1470 MPa (150 kgf/mm²) that also possesses toughness is referred to as ultra-high-strength steel; today, there are also ultra-high-strength steels with tensile strengths reaching 2400 MPa.  Ultra-high-strength steel is primarily used in rocket engine casings, aircraft landing gear, fuselage frames and skins, high-pressure vessels,…

What type of die steel should be used for deep drawing a galvanized steel basin with a thickness of approximately 0.23 mm? Question from a viewer during Live Stream #296.  Stamping a 0.23 galvanized steel basin is a typical application for thin-gauge steel. Since the material is not hard and does not require extremely high wear…

During the 296th live stream, a viewer asked: “When punching 0.2mm TA1 titanium sheet with SKD11 dies and punches, there is significant burr formation. SKD11 dies can only produce 20,000–30,000 parts before burrs appear. What type of die steel should be used for punching 0.2mm TA1 titanium sheet?”  Titanium has excellent strength and toughness, with a typical hardness…

Last night, June 28, 2026, I hosted a 1-hour-and-20-minute livestream—my 297th livestream.  This livestream reached 6,613 people, had 605 viewers, an average watch time of 2.22 minutes, an average of 18 concurrent viewers, a peak of 49 concurrent viewers, and gained 10 new followers.  In comparison, my previous stream (No. 296) had 29,000 impressions, 1,164…

What type of die steel is best for punching 5mm red copper? A viewer asked me this question during the 296th live stream. Punching red copper tends to cause copper powder to stick to the punch. The punch must not only resist material adhesion but also have a hardness of 58 HRC; crucially, it must…

The second truckload of tool steel was unloaded from 11:00 to 12:30—we spent the entire morning unloading. But the second truck was much easier; everything was already prepared, so unloading went smoothly. Now that both truckloads have arrived safely, I can rest easy. Seeing the workshop fully stocked gives me a sense of peace of mind. When…

A netizen asked in the comments section of my video: How can I stamp a 1.8mm-thick 420 steel plate without causing tear marks? Scratch marks are typically caused by adhesive wear resulting from stamping debris, which can damage parts or leave scratch marks; this can be avoided by selecting a non-stick die steel.  Speaking of…

This morning, the sun was shining brightly in Dongguan, and our shipment arrived just in time—being able to unload without getting wet is a blessing in itself.  We received two truckloads today; this is the first one. We’ve already finished unloading it safely, and now we’re getting ready to unload the second one. With two…

Question from a viewer during the 295th live stream: Boss, for stamping 0.3-thick 201 stainless steel small parts with a 5-millimeter-high shallow draw, what type of die steel is best? Daily production is 60,000 cycles. The biggest concern with stainless steel drawing dies is wire drawing. Fortunately, this is 0.3 mm stainless steel—a thin material—with…

Cold-extruded T2 red copper (8566) not only solved the problem of punch breakage but also increased punch lifespan by more than 10 times—this was the most valuable comment in the 295th live stream.  A long-time customer commented in the livestream that 8566 cold-stamped red copper works very well. They’ve made one punch so far, and…

A viewer named Deng Sheng asked in the live stream: “Punching and blanking 3mm-thick T2 red copper sheets tends to cause burrs. Could you recommend materials for the upper punch and lower die? We’re currently using DC53.”  Burrs during the stamping of red copper sheets are caused by adhesive wear resulting from material adhesion. Since…

Question from a viewer during the 295th live stream: What is the best die material for punching holes in 3mm-thick aluminum sheets?  Punching and cutting 3mm-thick aluminum sheet involves stamping thick aluminum. The punching process can easily generate aluminum shavings that cause material jams. Therefore, you should select a die steel with high-quality smelting that is…