Model 145

Description

The Universal Sheet Metal Testing Machine, Model 145-60 Basic, with electro-hydraulic drive, manual test head opening, fully automatic test sequence and switch-off at specimen failure. The Testing Machine is equipped with a drawing force and a pre-setting blank holder pressure of 600 kN, including an increased blanking force and blank holder holder force for blank diameters up to 220 mm.

Application

This Sheet Metal Testing Machine is not only ideal for the effortless, quick and accurately all important and known-deep drawing tests for ferrous and non-ferrous metals, it is also designed for a large number of additional technological investigations like the ERICHSEN Cupping Test and the ERICHSEN Deep Drawing Cup Test. Relevant attributes are:

• Square Cup Test (40 x 40 mm or 70 x 70 mm)
• Bore Expanding Test (ISO 16630)
• Determination of the Forming Limit Curves (FLC)
• LDH Test
• Deep Drawing Tests with Blankholder Quick Release (for Earing Test)
• Deep Drawing Tests with Preselected Punch Stroke
• Deep Drawing Test at High Temperatures up to 550 °C
• Bulge Test in accordance with ISO 16808
• ERICHSEN Cupping Test for Lacquer and Paint in accordance with DIN ISO 1520
• Stamping Lacquer Test and Deep Drawing Cup Test on Coil Coatings
• Special Requirements on request
  
  

Design

The Testing Machine is driven electro-hydraulically. The test sequence is controlled automatically or manually as appropriate. The drawing force and blankholder force as well as the drawing punch stroke are digitally displayed. The triple-acting hydraulic system in conjunction with the general design results in the following cost saving simplifications:

• Blanking press in the head (blanking force maximum 800 kN)
  • The blanks are punched and deep-drawn in one step
• Hydraulic cup ejector
  • Easy removal of the cups
• Fully-automatic test sequence
  • A programme logic controller is used for the functions of the machine, i.a. automatic stop at specimen failure
    
    

Further technical advantages:

• Security / Safety
  • An integrated access protection of the clamping cylinder protects the operator from injury. The electronic interrogation of the head position prevents tarnishing of the machine with open lid.
• User-friendly
  • Clear arrangement of the control elements on the slanted control panel (ergonomic works)
• Cylinder head with bayonet lock
  • permitting direct access to drawing dies, blanking rings, blank holders etc. and quick and convenient changing of the drawing and blanking tools
• Infinitely variable drawing speed
  • once set it remains constant throughout the drawing movement, independent of any change of load
• Cardanic drawing die retention
  • ensures the consistent, parallel clamping of the specimen, independent of variations in thickness
• Sheet holder quick release (BSA function) optionally preselected
  • prevents squashing of the ear-ends in the final phase of the deep-drawing process – when reaching the on the digital display preselected drawing punch path, the sheet holder force is released
• Drawing punch stop (ZS function) optionally preselected
  • When the preselected drawing punch on the counter is reached, the machine currently stopped in the ZS function and the sheet holder force in the BSA function will relieved. The "drawing punch stop" is limited to the drawing speed up to 20 mm/min
    
    

Scope of delivery

• Universal Sheet Metal Testing Machine, Model 145-60-Basic
• Operating instructions
• Manufacturer's Test Certificate M