![]() Blanking: differs from piercing only in that the part cut from the work material is usable. The material (slug) cut from the sheetmetal is often scrap. ![]() Piercing die design Blanking die design Compound blanking & piercing Design elements Die block general design Center of pressure Peak cutting force Stripping Force Press Tonnage Reducing Cutting Forcesģ Thickness= 0.4 to 6 mm (1/64 to 1/4 in)ĭie Cutting Operation Cutting and forming operations performed on relatively thin sheets of metal Thickness of sheet metal = 0.4 mm (1/64 in) to 6 mm (1/4 in) Thickness of plate stock > 6 mm Operations usually performed as cold working Thickness= 0.4 to 6 mm (1/64 to 1/4 in)Ĥ Die Cutting Operation Punching (Piercing): round punch cuts a hole in the work material. ![]() ![]() Sources: Handbook of Die Design, Suchy Sheet Metal forming Knowledge base, SME Fundamentals of Tool Design, SME J Tool Design (Based on notes of Prof Dr Simin Nasseri, Southern Polytechnic State University)Ģ Summary: Die-cutting operations Clearance in sheet metal cutting ![]()
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