Punching Force Sheet Metal

Punching force calculation how to calculate punching force in tons punching force 25 x land distance x material thickness x material factor x shear factor note.

Punching force sheet metal.

The ram with guide rail and guide carriage or indexing slide is shuttling the punching punch to the sheet metal. How to obtain tonnage required for punching round holes. 6 the special scrap discharge slug removal unit slug chute or slug suction depend on the press type and application. 1 ton 8 90 kn.

Also known as dimple dies. The recommended sheet thickness for cnc punching is. 1kn 112 tons station size land distance the larger the perimeter of the cut hole the larger the tonnage required. Create a raised edge in sheet metal that locks into the rolled edge of another piece.

The maximum dimensions of the punching process are of course related to the selected punching machine. The punch force required to punch a piece of sheet metal can be estimated from the following equation. Alternatively if a sheet has symmetrical hole patterns you may be able to punch half the sheet flip it over then punch the other half. Tonnage in mild steel 3 1416 x diameter of hole x material thickness x 25 example.

Punching is a process of creating a hole over a sheet metal while blanking operation is a process of creating a blank out of the sheet metal. For proper stretching operation the metal sheet should be stressed above its yield strength. 82 728 kn 9 81 8 43 ton punching force calculator p s. Punch force kn 80 x 3 x 0 3447 82 728 kn convert into tonnage.

Once it contacts the sheet metal surface it senses the resistance and drives the punch downward with enough force to penetrate the material. F 0 7 t l u t s displaystyle f 0 7tl uts where t is the sheet metal thickness l is the total length sheared perimeter of the shape and uts is the ultimate tensile strength of the material. Shape a dimension ld land distance. In metal construction and the building industry use punching to produce profiles in sheet metal.

A pure punching machine with an automatic conveyor system can process sheet sizes of 1250 x 2500 mm. The maximum sheet density is up to 4 mm. 3 1416 x 2 000 x 250 x 25 39 26 tons. Cnc punching is generally suitable for punching low carbon steel electrolytic plate aluminum zinc plate aluminum plate copper plate with t 3 5 4mm or less and stainless steel plate with t 3mm or less.

It guarentees a clean distortion free contact with the sheet metal. A true b false 42. This tends to equalize the sheet stretching of both halves. If you want to calculate hydraulic press tonnage you can use our hydraulic press tonnage calculator.