 Modern Hydraulic Brake Press A brake press is a press used to bend, form or punch metal. It is a press that exerts a force on a set of dies. The force can be created by mechanical, hydraulic, electric or manual means. Power press with a fixed barrier guard A press, or a machine press is a tool used to work metal (typically steel) by changing its shape and internal structure. ...
Older systems used dies made to the angle of the bend desired. When sheet metal was pressed between the dies it took the angle of the dies when the dies bottomed. This is called bottom bending. If enough tonnage is exerted on the metal to make a sharp corner, this can also be called coining.
Most press brakes today use air bending. This is a process where a sophisticated control determines the depth that the punch or upper die extends into the lower die. Air bending takes much less tonnage than bottom bending or coining.
Parts can be programmed off line. The program can be stored at the control or on a company network. Using the same program each time will make parts more consistent. Set-up can be reduced if the control provides detailed information on the tooling and tooling location.
More complicated Brake Presses interface with a Backgauge to allow the operator to more accurately position metal for forming. A backgauge is a mechanical system, normally attached to a Brake press. ...
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