Stretch forming is a metal forming technique that involves stretching and bending a sheet of metal on a die at the same time to create huge-shaped pieces.

The stretch press is used to form sheet metal by securely gripping it along its edges with gripping jaws. Each gripping jaw is attached to a carriage, which is pulled by hydraulic or pneumatic force to stretch the sheet. You can know more about stretch-forming presses online.

Stretch Forming Press Move ProLift Rigging

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A stretch block, also known as a form block. It's a solid-shaped component that will be pressed against the sheet metal. Most stretch presses are vertically oriented. The form die rests on a table that can be lifted into the sheet using a hydraulic ram.

The tensile force increases as the forming die are driven into a sheet. Once the sheet is tightly gripped at its edges, it plastically deforms to a new shape.

Horizontal stretch press mounts the form die sideways onto a stationary table. The gripping jaws pull horizontally the sheet around the form.

Stretch Form Capabilities

Within the limits of machinery and material properties, we can form aluminum alloys, stainless, titanium, and Inconel. We can stretch sheet skins, as well as extruded and roll-formed, as well as press brake shapes.

Stretch forming equipment creates complex shapes by stretching a metal plate, sheet, or extrusion on top of a die. The surface quality and control of stretch-formed parts are better than those made from rolled or drawn materials. Stretch forming is a process that exposes a blank metal to plastic and elastic deformation.