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How to Design Metal
Stampings
Things We've Learned From Years Making Metal Stampings
6. Recommended Minimum Ratios of Punched Hole Diameters To Stock Thickness
Limitations are established in common practice for most economical production. Recommended ratios are applicable to all common metals.
P = Punched Hole Diameter (0.062 min. dia.)
T = Stock Thickness
Material
Ultimate
Tensile
Strength (PSI)Ratio
P to T32,000 P=1.0T 50,000 P=1.5T 95,000 P=2.0T This technical information has been contributed by
Dayton Rogers
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