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Calculate the greatest diameter for 60kN punch press which is to Punch hole. Shear stress = Shear Force Shear Area Shear stress = 0.8

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Calculate the greatest diameter for 60kN punch press which is to Punch hole. Shear stress = Shear Force Shear Area Shear stress = 0.8 x tensile stress Tensile stress of St33 plate is 330 N Thickness = 3mm Cut out diameter = 25mm mm die Area of Shear =(2 x x radius) x thickness 7x Diameter of cutout x thickness punch IN cut-out

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