Cutting Force Formula For Sheet Metal

Area of fillet 13.

Cutting force formula for sheet metal.

You can calculate the punching tonnage been required with the help of the following punching force calculation formula blanking force formula. Draw reduction percentage 10. Correction factor for flat blank length 5. Area of flat ring 11.

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. The generally accepted formula for predicting the maximum punch load is. Bending force requirement punch workpiece t die w force t sheet thickness w width of die opening l total length of bend into the page uts ultimate tensile strength of material 2 uts w lt f note. Reduction if maximum force using shear if like this video please donate paytm 9422112581 upi 9.

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. 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. 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 it s q345 steel plate then the shear force should be 141 1 4 197 4 tons. Area of invert fillet 14. Cutting force calculation in sheet metal blanking piercing.

Pre form for full circle forming 6. The notation used in the text l w differs from that used in the previous development b l. Number of drawing process 7. Punching force calculation formula.

Number of draw reduction 9. If it s 304 steel then the shear force is 141 2 282 tons. With this calculator you can determine the force required to shear sheet metal simply by entering the material s ultimate tensile strength thickness and blade angle rake angle. Flat blank length 4.