Cutting Force Formula For Sheet Metal

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Cutting force formula for sheet metal. Bottom bending one of the three types of bending for sheet metal where the radius of the punch tip is pushed into the sheet metal. This equation will calculate the force required to pierce or shear sheetmetal. You can calculate the punching tonnage been required with the help of the following punching force calculation formula blanking force formula. F s p dt where f is the maximum punch force in pounds s is the nominal tensile strength of the material being drawn psi d is the punch or cup diameter and t is the blank thickness.

Ultimate tensile strength psi. Shear strength 80 of tensile strength. F p x t x psi. Thus the force equals pressure times the cross sectional area of the cup wall.

α cutting angle. The cutting force calculation of inclined blade shear with blade support in straight motion mainly use the norshari formula by the former soviet scholar. Punching force calculation formula. In the cutting force formula σ b plate tensile strength limit n mm.

If you punch round holes or square holes or some other forms of holes through a given thickness of metal you just want to know the force required to punch a hole in steel. δ x plate elongation ratio. Box bending the process of bending a 4 sided sheet metal box. Blanking the process of cutting flat patterns from stock sheeting done typically with lasers water jets plasmas or punch presses.