Formed Sheet Metal Flanges

Forming a sheet metal flange.

Formed sheet metal flanges. There are many different kinds of mechanical stamping dies and some are designed primarily to form or flange sheet metal. When two edge flanges intersect a corner is formed. Forming metal is taking a flat or partially formed sheet metal blank and forming it into a desired shape flanging metal is the act of swiping sheet metal in a direction contrary to its previous position. Sheet metal forming processes are those in which force is applied to a piece of sheet metal to modify its geometry rather than remove any material.

The concave flange is formed by stretching while the convex flange is formed by shrinking. The fab shop s main concern with corners is the sheet metal s memory. The only tool you need is a length of 1 2 steel rod about 6 or so long. Most part defects such as splits and wrinkles occur in forming operations.

All forming operations deform sheet material by exposing it to tension compression or both. By doing so the sheet can be bent or stretched into a variety of complex shapes. In days gone by when most bodywork was done by skilled tinsmiths with no modern machinery many methods of working existed which have largely been forgotten now this is possibly one of them. The applied force stresses the metal beyond its yield strength causing the material to plastically deform but not to fail.

At the corner the flange lengths can either overlap underlap or butt. Our formed sheet metal flanges are made from 301 302 or 304 stainless steel. Overbending each flange is necessary to allow it tospring back to the correct unrestrained angle. Figure 6 these blocks are made in pairs and are designed specifically for the shape of the area being formed.

Clampco ensures that flanges and couplings are a perfect match. The metal being formed must have the ability to stretch and compress within given limits. In the end of this rod a slot is cut the. Such parts are shaped with the aid of hardwood or metal forming blocks.