Universal Sheet Metal Testing Machine, Model 142-20

Universal Sheet Metal Testing Machine with electro-hydraulic drive, fully automatic test sequence and switch off at specimen failure, max. drawing forces 200 kN or 400 kN – Model 142-20 and Model 142-40.
This Testing Machine can be used not only to perform effortlessly, quickly and accurately all important and known deep drawing tests for ferrous and non-ferrous metals, but it is also designed for a large number of additional technological investigations according to various standards.

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Erichsen Universal Sheet Metal Testing Machine

Model 142-20

With electro-hydraulic drive, max. drawing force 200 kN and for pre-setting the blank holder pressure max. 100 kN, for testing sheets and strips of all types for the properties important for press working: stretch and deep drawing quality using the:

I. Erichsen Cupping Test acc. to EN ISO, EURONORM, DIN, BS, NF, GOST, UNI, UNE
II. Deep Drawing Cup Test in a first and a redrawing operation
III. Deep Drawing Bore Expanding Test acc. to Siebel and Pomp (KWI)
IV. Bore Expanding Tests acc. to ISO 16630
V. Tools for Determination of Forming Limit Curves (FLC) acc. to ISO 12004

 

Key Features

The Testing Machine is driven electro-hydraulically. The test sequence can be controlled automatically or manually, as desired. A programme logic control is used to control the functions of the machine. Drawing force and blankholder force as well as the drawing punch stroke are displayed digitally. The triple-acting hydraulic system in conjunction with the general design results in the following cost saving simplifications:

  • Blanking press in the test head
  • Hydraulic cup ejector
  • Fully-automatic test sequence.

 

Standards

  • ISO 8490
  • ISO 11531
  • ASTM E 643-84
  • DIN 50 101
  • DIN 50 102
  • DIN EN 1669

 

Including

  • blanking press in the test head (max. blanking force 200 kN),
  • test piece ejector,
  • PLC,
  • automatic test sequence with stop at specimen failure (as of 0.3 mm sheet thickness),
  • digital display of drawing force and punch stroke,
  • digital display of drawing speed,
  • digital display of sheet holder force,
  • sheet holder quick release for earing test on anisotropic cups,
  • drawing punch stop after pre-selected punch stroke,
  • tool change switch (key switch necessary for tool changing of square draw tools and FLC test tools),
  • Erichsen test tool no. 27 acc. to EN ISO, EURONORM, BS, NF, JIS etc


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