Cutting Force Formula For Sheet Metal

F cutting force s material thickness l total cutting length a l x s shear area tß shear strength note.

Cutting force formula for sheet metal.

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

The resulting drawing force cannot be used as failure criteria for cup drawing. Ultimate tensile strength psi. You can calculate the punching tonnage been required with the help of the following punching force calculation formula blanking force formula. Blanking the process of cutting flat patterns from stock sheeting done typically with lasers water jets plasmas or punch presses.

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

δ x plate elongation ratio. Thus the force equals pressure times the cross sectional area of the cup wall. 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.