Sheet-metal forming air hammer?

The alloying elements and the metal tempers -W (as quenched/solutionised),O (annealed),T (tempered)

the industry standard is a minimum of twice material thickness. however, four times is better for thicker materials as this helps avoid stress cracking.

I believe you want to know the MINIMUM bending radius of sheet metal.The maximum bend would be 180 degrees.

ON the cad offset the bend radius from the internal radius of the sheet metal part by 40% of the total sheet thickness,and measure the chord length of the radius. that will be the developed length.

hammer forming is a process by which a form is made from wood, steel, or other hard material and then sheet metal is worked very slowly from all edges until it conforms to the shape of the form. The...