Cutting Force Formula For Sheet Metal

The resulting drawing force cannot be used as failure criteria for cup drawing.

Cutting force formula for sheet metal.

The cutting force calculation of inclined blade shear with blade support in straight motion mainly use the norshari formula by the former soviet scholar. Blanking the process of cutting flat patterns from stock sheeting done typically with lasers water jets plasmas or punch presses. Thus the force equals pressure times the cross sectional area of the cup wall. 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.

Box bending the process of bending a 4 sided sheet metal box. F is force required in pounds p is perimeter around area to be sheared inches t is sheet thickness in inches psi is the shear strength rating of the material in pounds per square inch. F p x t x psi. Shear strength 80 of tensile strength.

This equation will calculate the force required to pierce or shear sheetmetal. 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. α cutting angle. δ x plate elongation ratio.

Ultimate tensile strength psi. Punching force calculation formula. In the cutting force formula σ b plate tensile strength limit n mm. Sheet metal knowledge menu sheet metal manufacturing and services.