Cutting Force Formula For Sheet Metal

Blanking the process of cutting flat patterns from stock sheeting done typically with lasers water jets plasmas or punch presses.

Cutting force formula for sheet metal.

δ x plate elongation ratio. 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. 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.

You can calculate the punching tonnage been required with the help of the following punching force calculation formula blanking force formula. The resulting drawing force cannot be used as failure criteria for cup drawing. Sheet metal knowledge menu sheet metal manufacturing and services. The cutting force calculation of inclined blade shear with blade support in straight motion mainly use the norshari formula by the former soviet scholar.

Ultimate tensile strength psi. F cutting force s material thickness l total cutting length a l x s shear area tß shear strength note. This equation will calculate the force required to pierce or shear sheetmetal. Shear strength 80 of tensile strength.

Thus the force equals pressure times the cross sectional area of the cup wall. α cutting angle. 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. Punching force calculation formula.