Cutting Force Formula For Sheet Metal

In the cutting force formula σ b plate tensile strength limit n mm.

Cutting force formula for sheet metal.

This equation will calculate the force required to pierce or shear sheetmetal. 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. 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. Punching force calculation formula.

δ x plate elongation ratio. α cutting angle. You can calculate the punching tonnage been required with the help of the following punching force calculation formula blanking force formula. Thus the force equals pressure times the cross sectional area of the cup wall.

Shear strength 80 of tensile strength. Ultimate tensile strength psi. Sheet metal knowledge menu sheet metal manufacturing and services. F p x t x psi.

Blanking the process of cutting flat patterns from stock sheeting done typically with lasers water jets plasmas or punch presses. The cutting force calculation of inclined blade shear with blade support in straight motion mainly use the norshari formula by the former soviet scholar. The resulting drawing force cannot be used as failure criteria for cup drawing. F cutting force s material thickness l total cutting length a l x s shear area tß shear strength note.