Bottoming Sheet Metal

The wooden bread layers of the sandwich keep the sheet metal flat and prevent the drill bit from wandering as it bores through the sheet metal.

Bottoming sheet metal. Bottom bending is often confused with air bending and leads operators to ask themselves why there is a difference in radius when bending a 90 and 80 angle. In fact with bottoming the metal experiences what s referred to as springback which is what happens when it relaxes to a wider angle after being bent. Hillman 24 in x 24 in cold rolled steel solid sheet metal. M d 24 in x 3 ft aluminum sheet metal.

Satin nick elliptical aluminum sheet model 57010 18 98 18 98. With bottoming the inner radius of the angled sheet depends on the die s radius. Free delivery with 45 order. For pricing and availability.

Free delivery with 45 order. In air bending the sheet takes on a natural bend radius that s determined by thickness hardness and other material properties. U shaped openings cannot be used. This is because when bending the 80 the punch tip is not pressed into the sheet metal in the way bottom bending is.

Part of the fundamental manufacturing processes video series this program examines two of the oldest manufacturing processes. Bottoming may refer to. As the name bottom pressing suggests the punch presses the metal sheet onto the surface of the die so the die s angle determines the final angle of the workpiece. Space is left between the sheet and the bottom of the v opening.

By accurate we mean a more consistent bend angle. 22 gauge metal sheet model 801447 8 98 8 98. Bottoming does two things for us. Set your store to see local availability add to cart.

Simply sandwich the sheet metal between two pieces of wood and clamp everything down on a table or workbench. The optimum width of the v opening is 6 t t stands for material thickness for sheets about 3 mm thick up to about 12 t for 12 mm thick sheets. M d building products 1 ft. In bottoming the sheet is forced against the v opening in the bottom tool.