Testing Machine with programmable logic controller (PLC) Proportional control of blank holder force and drawing speed testing equipment for quality management Technical Description

Product The Bulge/FLC Tester, Model 161, is an electrohydraulic testing machine to carry out the hydraulic cupping test on all ferrous and nonferrous metals. Specimens up to a size of 400 x 650 mm can be tested. In addition to the actual hydraulic forming process the design of the machine also allows the use of ball punches (FLC) up to a diameter of 100 to 199 mm. The Bulge Test A diagrammatic section of the bulge test device which is used in the Bulge/FLC Tester is shown in Fig. 1. The test panel (2) is clamped between the drawing die (1) and the blank holder (3). The chamber underneath the...

The hydraulic cylinder, the hydraulic aggregate as well as the control devices are housed within the body of the machine. The operation of the Bulge/FLC Tester, Model 161, is most simple. After the specimen has been placed into the test head, the hydraulic system is started with the help of a push button whereupon in the first instance the test panel is clamped tightly. Thereafter the drawing piston moves upwards and presses the quantity of oil that is located between the piston and the test panel, into the direction of the test panel so that the specimen is formed into a spherical bulge. The...

Technical Data Equipment to enable further Tests Bulge dia.: Drawing speed: Blank holder force (infinitely variable up to): Clamping stroke: Dimensions: Width Depth Height Mains supply: Connected load: Facility for Measurement of Bulge Oil Pressure with analogue data acquisition, digital display as well as analogue output. for control, adjustment, documentation and filing of measuring data of the Sheet Metal Testing Machine. Software for recording of force/time-dependency diagrams like drawing force and blank holder force. Creation of test sequences; presetting of freely selectable parameters...