NASA NTRS · 19870000425
Punching Holes in Thin Metals
Abstract
Simple punching tool used to make holes in thin metal sheets, without burrs and edge deformations. Tool used on such materials as stainless steel, nickel alloys, beryllium, copper, and aluminum, in thicknesses of 0.002 to 0.010 in. With new punch, hole size held to tolerance of 0.025 mm. Includes rubber punch extruding into hole in top plate, pushing out exposed portion of clamped metal sheet.
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Garcia, Richard, Foster, Derrell, Miranda, Valentino. 1987-09-01. Punching Holes in Thin Metals. https://ntrs.nasa.gov/citations/19870000425
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