Punching Sheet Metal Thickness

82 728 kn 9 81 8 43 ton.

Punching sheet metal thickness.

Generally capabilities of of 0 9mm 20mm in thickness are able to be manufactured from sheet 3mm or plate 3mm but this tolerance depends mainly on the part. A deflecting punch requires more tonnage to break through the material and again increases distortion. Sheet metal punching via ironworker is a slow process. When considering sheet metal thickness a single sheet with punches holes is a good rule of thumb.

The punch force required to punch a piece of sheet metal can be estimated from the following equation. Most of the sheet metal cutting processes discussed can be performed. Punch force kn 80 x 3 x 0 3447 82 728 kn convert into tonnage. The die clearance ideally increases as thicker sheet metal is punched but in practice some standard dies can be used for a range of materials.

Sheet and plate generally refers to rolled metal with a high surface area to volume ratio. For example when punching a round hole it is generally recommended that the minimum diameter of the hole should be larger than the thickness of the metal. 2 to 1 for stainless 1 to 1 for carbon steel 0 75 to 1 for aluminum. Shear strength 0 3447kn mm 2.

Perimeter 20 4 80mm. 1 2893 7 3 2812 7 1 2 2576 6 5 2656 6 7 3 2391 6 1 2294 5 8 2500 6 4 4 2242 5 7. The difference is that sheet metal is under 1 4 inch 6mm in thickness while plate metal is thicker. Typically ironworkers are used for thicknesses greater than 1 8.

And the type of metal being punched harder metals are more difficult to punch. This is because the stripping action of the punch coming out of thin materials causes the sheet metal to deform. If punching one square hole in the 3mm thickness low carbon steel plate side length 20mm you will get. The thickness of the metal being punched thicker metal is harder to punch neatly.

Gauge sheet steel. Also watch out for punch deflection especially if you re working with small hole diameter to material thickness ratios.