{"id":1470,"date":"2026-08-28T09:52:09","date_gmt":"2026-08-28T09:52:09","guid":{"rendered":"https:\/\/www.wudejiansteel.com\/?p=1470"},"modified":"2026-08-28T09:52:10","modified_gmt":"2026-08-28T09:52:10","slug":"mr-yan-asked-what-type-of-die-steel-should-be-used-for-punches-when-punching-aluminum-to-prevent-aluminum-shavings-from-sticking-to-them-ordinary-punches-tend-to-get-clogged-with-alum","status":"publish","type":"post","link":"https:\/\/www.wudejiansteel.com\/?p=1470","title":{"rendered":"Mr. Yan asked, \u201cWhat type of die steel\u00a0should be used for punches when punching aluminum to prevent aluminum shavings from sticking to them? Ordinary punches tend to get clogged with aluminum shavings and cause scratches.\u201dblog\u00a0293"},"content":{"rendered":"\n

Mr. Yan asked, \u201cWhat type of die steel<\/a><\/strong>\u00a0should be used for punches in aluminum stamping to prevent aluminum chips from sticking?\u201d<\/p>\n\n\n\n

 He is stamping aluminum sheets that are 0.8 to 1.2 thick. Currently, the punches tend to accumulate aluminum chips. He is currently using Cr12MoV and DC53 punches, and even at relatively slow speeds, a standard punch accumulates a lot of aluminum chips. Once the chips stick to the punch, it causes scoring, and continued stamping becomes impossible.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

 Stamping aluminum tends to cause aluminum chips to stick to the die, which is the ultimate test of the quality of the die steel\u2019s smelting process. If the die stee<\/strong>l you use has segregation defects or microscopic cracks in its microstructure, the aluminum chips will penetrate into the die along these cracks during stamping, leading to the problem of aluminum chips sticking. As more and more aluminum chips accumulate, the product will develop scratches, and material jams may even occur.<\/p>\n\n\n\n

 Both DC53 and Cr12MoV are high-carbon cold-work die steels that contain microcracks in their microstructure. Coupled with the current fierce price competition in the die steel<\/strong> market and poor smelting quality, this has led to an increase in microcracks in die steel, making aluminum debris adhesion a very common issue.<\/p>\n\n\n\n

 To address aluminum debris adhesion during aluminum stamping, I recommend using 8566 anti-chipping steel.<\/p>\n\n\n\n

\u00a08566 is a proprietary anti-spalling steel from Yuhui Mold Steel<\/a><\/strong>, designed primarily to address mold spalling issues; it has accumulated over a thousand successful case studies across five stamping operating conditions, six major material types, and seven major application areas.<\/p>\n\n\n\n

 8566 offers four times the chipping resistance of high-speed steel SKH-9 and twice that of D2, with a hardness of 58\u201360HRC. It can resolve chipping issues that high-hardness mold steels such as D2, DC53, and SKH-9 are unable to address.<\/p>\n\n\n\n

 The reason 8566 possesses such high chipping resistance lies not only in its optimal alloy composition but also\u2014and crucially\u2014in the quality of its smelting process. 8566 is produced using a critical gas electroslag furnace, resulting in mold steel with high purity and low levels of five major harmful impurities. It is further processed using a 4,500-metric-ton facility for six-sided forging\u2014involving three forging passes and three drawing passes\u2014which significantly improves microstructural segregation. This ensures excellent microstructural uniformity and eliminates microcracks caused by segregation, naturally preventing adhesion to aluminum chips.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

 Mr. Bao said excitedly: \u201cWhen punching 4mm aluminum sheet with 8566, it doesn\u2019t stick to the aluminum even after more than 10 days of operation. The punching speed has now been increased to 200 strokes per minute. No other die steel can achieve this\u2014it\u2019s amazed even the industry leaders.\u201d<\/p>\n\n\n\n

 Mr. Bao was punching 4mm-thick aluminum sheets. When punching 45\u00b0 sharp corners with DC53 or SKH-9, the corners would easily chip, and the punch would get clogged with aluminum powder. With a progressive die running at 100 strokes per minute for 10 hours a day, the punches would last about one day\u2014sometimes requiring two punch changes a day, which was incredibly frustrating.<\/p>\n\n\n\n

 But now, using 8566 chipping-resistant steel, the punching speed has doubled from 100 to 200 strokes per minute, effectively doubling productivity\u2014it\u2019s like getting two days\u2019 work done in one. The punch remains intact even after more than 10 days of continuous operation, representing a more than tenfold increase in service life compared to the previous daily punch replacements.<\/p>\n\n\n\n

 Doubled efficiency and a service life over 10 times longer\u2014anyone would be thrilled. It\u2019s no surprise that it stunned the industry leader; I\u2019m sure even he has never seen such an amazing material.<\/p>\n\n\n\n

\u00a0Using 8566 die steel<\/a><\/strong>\u00a0for punch chipping\u2014it\u2019s like night and day compared to the old days.<\/p>\n\n\n\n

*************<\/p>\n\n\n\n

Wu Dejian’s <\/strong>tool<\/strong> steel<\/strong>, the chief of staff of the user, bought everything he had used.<\/p>\n","protected":false},"excerpt":{"rendered":"

Mr. Yan asked, \u201cWhat type of die steel\u00a0should be used for punches in aluminum stamping to prevent aluminum chips from sticking?\u201d  He is stamping aluminum sheets that are 0.8 to 1.2 thick. Currently, the punches tend to accumulate aluminum chips. He is currently using Cr12MoV and DC53 punches, and even at relatively slow speeds, a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1470","post","type-post","status-publish","format-standard","hentry","category-blog"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t