It seems as though I have read on the forum something concerning the ability to measure the tooling angle of a punched sheet metal hole. Am I making this up? I am working with an engineer who insists on measuring the angle of a hole in .048" sheet metal.
Sheet Metal Punch Angle
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If you are refering to the breakage on a punched hole, the rule is 10% so if you have a .500 hole in that .048 sheetmetal the blow out side of the hole will be .510. And the .500 will only be about .016 inch thick on the punched side, and thats where you need to be to check true position. I see more mistakes made because the pre-hits and depth are not used correctly,. This is also where a lot of error in hole size is made. There is no real angle per say, its where and how it breaks out.sigpicSummer Time. Gotta Love it!
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Originally posted by Bob Pierce View PostIt seems as though I have read on the forum something concerning the ability to measure the tooling angle of a punched sheet metal hole. Am I making this up? I am working with an engineer who insists on measuring the angle of a hole in .048" sheet metal.sigpicIt's corona time!
737 Xcel Cad++ v2009MR1....SE HABLA ESPAÑOL
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