Sheet metal testing machine ERICHSEN
Bulge / FLC Test

Bulge/FLC Tester, Model 161

It is possible to test specimens up to a size of 400 x 650 mm when conducting the hydraulic deep-drawing test with the Bulge/FLC tester: In addition to the actual hydraulic forming process the construction of this machine also allows the use of ball punches with a diameter up to 200 mm. The maximum drawing force is 1,000 kN. To guarantee an exact reading of the required drawing force even in case of lower forces, they are divided in two measuring ranges. At specimen failure the test can be stopped both manually or automatically. The capture and the evaluation of the measuring points on the surface of the dome can be effected by an optical measuring device during the drawing process. In the basic version the height of the bulge is detected by means of a measuring probe placed on top, the maximum path measured being 100 mm, and displayed digitally.

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