Rubber Press Sheet Metal Forming

A beckwood 400 ton rubber pad forming press making 5 different parts in one cycle.

Rubber press sheet metal forming.

Cost effective way to form sheet metal in addition to the strengthening of the metal 3 verson hydroform bladder presses 4. Rubber pad forming presses use an enclosed rubber or urethane pad box as a universal female die to form parts over a single un mated tool. The punch forces the work into the rubber. Hydroform presses are incredibly powerful delivering over 10 000 psi to achieve complex forming and tight tolerances.

The blank of sheet metal work piece is placed on the die. Under pressure the rubber and sheet metal are driven into the die and conform to its shape forming the part. The tool is placed unsecured onto the bed bolster and downward pressure is applied. The flat part was punched on a cnc punch press.

The other common method is rubber pad forming in which a ram forces an elastomeric or urethane pad to deform as it presses the metal using non isotropic forces. Solid rubber pad forming process. Fluid pressure forces metal such as aluminum brass alloy steel and stainless steel directly over the die through a diaphragm. For metalworking processes sheet metal is pressed between a die and a forming pad which is connected to a hydraulic press.

Rubber press forming a small rib for a horizontal stabilizer. The rubber pad forming sheet metal parts having without stress. It is easy and requires application of rigid container fillet with solid rubber pad. The forming block was machined on a cnc mill.

Solid rubber pad forming. Impresa uses the hydroform process to produce large sophisticated parts including fuselage frames. Rubber forming rubber forming uses a flexible material such as rubber or polyurethane to form a sheet metal work piece. Often the rubber is incased in a steel container and serves as a punch.

Alternatively they can be machined in the shape of die or punch. A work piece is placed over a rigid die. The fully contained pad box prevents the rubber from extruding outside of the work area during the forming process. Rubber is forced all around the work creating pressure and forming the metal onto the die.

Rubber pad forming is a deep drawing technique that is ideally suited for the production of small and medium sized series. Before the forming process the blanks are precut to their final dimension. Under pressure the forming pad molds the sheet metal into the shape of the die thus forming the part.