A netizen in the live broadcast room asked: What material of tool steel should be used to replace the high-speed steel and adhesive material used for punching 3.0 aluminum?
Yes, stamping aluminum material is the easiest to stick aluminum chips. If the tool steel you choose has microscopic cracks that are invisible to the naked eye, it is easy for it to stick to the aluminum material during the punching process. When choosing tool steel, the first step is to choose non stick materials, which means mold materials with good smelting quality and no microscopic cracks that are invisible to the naked eye; Secondly, the alloy has a high total amount, high hardness, and good wear resistance, while possessing both properties to prevent sticking to aluminum materials and to be highly impact resistant.
Considering that he is stamping 3mm aluminum plates and has now used high-speed steel, it indicates that he has requirements for wear resistance and hopes to use high hardness tool steel. He is willing to pay extra, so I recommend using PM23 powder high-speed steel with better performance.
Because PM23 has undergone advanced powder metallurgy technology, segregation has been eliminated, micro cracks that are invisible to the naked eye have been avoided, and there will be no adhesive wear caused by sticking materials, so there will be no aluminum shavings sticking and wire drawing.
PM23 has a carbon content of 1.3%, tungsten W content of 6.0%, vanadium V content of 3.0%, and a hardness of 64-66HRC. You use PM23 to punch aluminum material, which is not sticky with aluminum shavings and very wear-resistant, making it very useful.
Our Fujian customer Mr. Liu is a cold extruded hard aluminum product with a high copper content. The bottom mold is made of tungsten steel, and there are no production problems. He produces 10000 pieces per day, with a total lifespan of 200000 to 300000 times. However, the mold is prone to cracking, and if workers make mistakes, the mold will crack. The mold cost of seven to eight thousand yuan per month is scrapped, resulting in significant losses.
Switching to SKH-9 high-speed steel will result in aluminum sticking after about half a month of punching, causing the product to start drawing and requiring mold repair, mainly due to severe drawing and the annoyance of old mold repairs.
Now using Wu Dejian PM23, we have produced 300000 products in one month. It does not stick to aluminum material and does not produce wire drawing. Its lifespan is close to tungsten steel, but it does not crack the mold. The mold cost is even lower, and the effect is good.
If you think PM23 is expensive, you are unwilling to use it, or your mold fee does not allow the use of such good tool steel, then I recommend using 8566 anti collapse steel, which is only one-third of PM23’s price.
8566 is a proprietary anti collapse steel developed by Yuhui tool Steel, which mainly solves the problem of mold cracking. The anti cracking performance of 8566 is four times that of high-speed steel SKH-9 and twice that of D2, with a hardness of 58-60HRC. It mainly solves the cracking problem that cannot be solved by high hardness tool steels such as D2, DC53, SKH-9, especially in stainless steel stamping, sharp corner stamping, thick plate stamping, precision stamping molds, and molds with special requirements for brightness. Conventional tool steels that are prone to cracking are all made of 8566 die steel.
The reason why 8566 has such good anti cracking performance is not only because of its proprietary alloy ratio, but also because of its proprietary smelting quality, which avoids microscopic micro cracks that are invisible to the naked eye. Without micro cracks, there will be no adhesive wear during the stamping process. In addition, with the high thermal conductivity of 8566, the heat generated during the stamping process can be quickly dissipated, and the punch will not heat up, so there will be no problem of sticking aluminum material.
Mr. Bao uses a 45 degree oblique angle punch for stamping 4mm aluminum plates, using DC53 and SKH-9, which is prone to breakage due to the presence of aluminum shavings and burrs. The punching speed is 100 times/minute, and it takes 10 hours a day to punch. It is very troublesome to change 1-2 punches every day. But with the use of 8566 die steel, the punching speed increased from 100 to 200, and after punching for more than 10 days, there were no aluminum shavings sticking, and the punch did not break. Other die steels cannot achieve this effect. This usage effect alarmed his industry leader.
Indeed, 8566 die steel not only solves the problem of the punch breaking twice a day, but also ensures that it does not break even after more than 10 days of stamping, which is equivalent to increasing the life of the die by more than ten times. The key is to increase the punching speed from 100 times to 200 times, which is equivalent to using one day as two days. This doubles the efficiency and increases the lifespan by more than ten times. This account is worth it no matter how it is calculated, which surprised his industry leader and is not surprising.
The netizen asked, stamping 3mm aluminum plate with high-speed steel is prone to powder debris. If your cost is enough, you can use PM23 powder high-speed steel, which can meet your psychological pursuit of wear resistance and solve the problem of aluminum debris adhesion.
If you don’t want to spend too much cost, you can use 8566 anti collapse steel, which will not increase the cost of steel for your mold, will not crack, will not stick to aluminum shavings, and even have a faster punching speed. This way, you can achieve high efficiency, long life, and low-cost use.
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I am Wu Dejian, the king of die steel, from Dongguan Yuhui Tool Steel. Yuhui Tool Steel is used by 3 Fortune 500 companies, and Kyocera has been purchasing Yuhui Tool Steel for 7 consecutive years. I have solved the difficult problems of mold material selection, production, and use for more than 4,000 enterprises. If you are hesitant when choosing die steel, or if the die steel you are currently using has a short service life, and you don’t know which material to use, welcome to come to me. I believe that in this regard, I can be your chief of staff and help you save money. Wu Dejian Tool Steel, the chief of staff of users, is well-received by those who have used it!
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