Material Testing Equipments
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Sheet Metal Testing Equipments:
We offer Sheet Metal Testing Machines of ERICHSEN GmbH & Co. KG, Germany – world’s leading manufacturer in this field.

ERICHSEN’s universal sheet metal testing machines equipped with the appropriate tools and/ or accessories are suitable for conducting a wide range of tests related to metal forming :-

   
  Cupping test acc. to Olsen or Persoz
  Square cup test
  Bore expanding test (KWI – test)
  Deep-drawing cup test acc. to swift
  Fukui – test
  Engelhardt test 8
  LDH test
  FLC determination
  Tests with drawing speeds up to 30 m/min.
  Deep-drawing test with hot drawing equipment up to 550 deg C
  Bulge test
  Reverse drawing
  Precision blanking test
  Lubricant testing
  Tube expanding test acc. to DIN 50 135
  Ring expanding test acc. To DIN 50 137
  Cupping test on tailored blanks
  ERICHSEN cupping test on lacquered sheet metal acc. to DIN ISO 1520
 
Following are the various models for sheet metal testing :
Model 100 : Basic hand-operated sheet metal testing machine

Recommended for use wherever a low rate of forming is carried out on thinner sheet metals. The blank holding force of 10kN required by the standard is applied by means of disk springs. The deep drawing index is displayed on an electro-mechanical pulse counter with a resolution of 0.1mm
     
Drawing force max. 30kN
Blank holding force 10kN
Test  
ERICHSEN cupping test   Sheet thickness 0.1 – 1.5mm
Also suitable for testing materials of less than 0.1mm thickness
   
Model 111 : Electro-hydraulic cupping tester with automatic test sequence

This easy-to-use cupping test machine is intended for conducting tests on sheet metal and strip for the quick control of incoming goods and quality inspection. The deep drawing index is shown on a digital display with a resolution of 0.1mm
     
Drawing force max. 45kN
Blank holding force 10kN
Test  
ERICHSEN cupping test   Sheet thickness 0.1 – 2.0mm
   
Model 102 : Electro-hydraulic sheet metal testing machine with automatic test sequence

Suitable for the medium sheet thickness range and used in quality control applications. The advance movement of the punch is stopped automatically once the specimen has failed and the relevant deep drawing index is shown digitally on an electronic counter with a resolution of 0.1mm. A data recording system via PC is also available for the modified ERICHSEN cupping test. The test machine can also be fitted ( or retro fitted) with a hydraulic blanking press ( blanking force 200kN) for making the blanks required for the deep-drawing cup test.
     
Drawing force max. 60kN
Blank holding force max. 12kN
Drawing punch dia. max 33mm
Blank dia.: max. 75mm
Test  
ERICHSEN cupping test   Sheet thickness 0.1 – 3.5mm
Deep-drawing cup test   Sheet thickness 0.2 – 1.4mm
Deep-drawing expanding test   Sheet thickness 0.2 – 1.5mm
 
 
Model 134 : Electro-hydraulic sheet metal test machine with automatic controls

Recommendable for manufacturers of sheet metal wherever constant testing is required. Enables all deep-drawing tests that are specified in national and international standards to be conducted automatically. Individual tests can also be carried out with the appropriate test tools. The machine is equipped with state-of –the-art technology in the fields of control, measurement and evaluation systems. Analog outputs and RS 232C interfaces for the drawing force, blank holding force and drawing punch displacement can also be added to the test machine to produce force/displacement diagrams and for additional data recording. Also available from us : computers with statistics programme for ERICHSEN deep-drawing indices and for recording force/displacement diagrams during deep-drawing cup test.
     
Drawing force max. 100kN
Blank holding force max. 45kN
Drawing punch dia. max 33mm
Blank dia.: max. 80mm
Test  
ERICHSEN cupping test   Sheet thickness 0.1 – 4.0mm
Deep-drawing cup test   Sheet thickness 0.2 – 2.5mm
Deep-drawing expanding test   Sheet thickness 0.2 – 2.0mm
   
Model 142-20/40 : Universal sheet metal test machine with fully automatic test sequence

An extremely versatile test machine for the medium to upper performance class ( 200 or 400 kN) which is suitable for applications in the field of process control, but mainly used in the research and development of new materials. The machine is driven electro-hydraulically; the test sequences can be controlled either automatically or manually. The blanking press is integrated in the test head; infinitely variable control of drawing speed and blank holding force, independent of load. Digital Display of drawing force, blank holding force and punch displacement are shown with peak value indication. Analog outputs or RS 232 C interfaces enable force/displacement diagrams to be recorded. As a further option, the control and regulation of all main parameters and the evaluation of results can be carried out via PC.
     
Drawing force 142-20 :max. 200kN
    142-40 :max 400kN
Blank holding force 142-20 :max. 100kN
    142-40 :max 220kN
Drawing punch dia. 142-20 :max 50mm
    142-40 :max.75mm
Blank dia.: 142-20 : max. 120mm
    142-40 : max. 170mm
Test  
ERICHSEN cupping test   Sheet thickness 0.1 – 5.0mm
Deep-drawing cup test   142-20 : Sheet thickness 0.2 – 3.0mm
    142-40 : Sheet thickness 0.2 – 6.0mm
Deep-drawing expanding test   Sheet thickness 0.2 – 3.0mm m
   
Model 145 : Universal sheet metal test machine for research, development and in-process inspections

As described for Model 142 but with drawing forces of up to 600kN and increased blanking force for blanks with diameter of up to 220mm.
     
Drawing force max. 600kN
Blank holding force max. 250kN
Drawing punch dia. max 100mm
Blank dia.: max. 220mm
Test  
ERICHSEN cupping test   Sheet thickness 0.1 – 6.0mm
Deep-drawing cup test   Sheet thickness 0.2 – 6.0mm
Deep-drawing expanding test   Sheet thickness 0.2 – 4.0mm
Special tests Engelhardt, Fukui, Olsen, Swift, Square cupping test, bulge test, reverse drawing, hot drawing, high speed testing, tensile testing, Brinell test, FLC/LDH test.
   
Model 106 : Electro-hydraulic earing test machine

Used for producing batches of standard cups, especially in compliance with DIN 50 155. Blanking, drawing and ejection of standard cups with anisotropic tendencies is done in a single sequence.
     
Punching and drawing force max. 80kN
Blank holding force max. 18kN
Drawing punch dia. max 33mm
Blank dia.: max. 64mm
Test  
Deep-drawing cup test   Sheet thickness : 0.1 – 1.0mm based on material with a tensile strength of 400 N/sq.mm
Deep-drawing cup test   Sheet thickness : 0.1 – 2.8mm based on material with a tensile strength of 100 N/sq.mm
   
Model 126 : Ear measuring instrument


 
Used to obtain a numerical value of the size of the ears resulting from anisotropy in the material ofcylindrical deep-drawn cups. The average cup height, the height of the ears in percent and in mm can be read-off at the touch of a button and are shown on the digital display instrument. To enable additional data processing, the test instrument can be equipped with interfaces, such as BCD or RS 232 C outputs, and linked to printer.
     
Test  
Earing   on deep-drawn cups with an inside diameter of 15-50mm and 50-100mm
   
Model 150 : Electro-hydraulic laboratory blanking press

Used for producing tensile test specimens and circular blanks of ferrous and non-ferrous metals. Tensile test specimens to comply with the specifications of various standards or to meet individual requirements can be produced using appropriate blanking tools. The blanking stroke is initiated by two-hand controls combined with a press safety relays. A force display unit is integrated into the fron panel and records the blanking forces. The blanks are discharges onto a chute and are accumulated on the left of the instrument. The blanking press is available in two versions.
     
Blanking force max. 500 kN or 1000kN
Sheet thickness max. 3.0mm or 5.0 mm
   
Model 160 : Laboratory milling machine

Used for removing the work-hardened edges of tensile testing specimens after blanking. The tensile test specimens are clamped individually or in packs into a milling fixture, then both sides are guided past the milling cutter. The result is a favourable parallelism in the measuring zone of the tensile test bar. The speed of the milling cutter is infinitely variable and can be preset between approx. 4,000 – 8,000 min-1 achieving an optimal cutting speed appropriate to the material.
     
Nominal speed 12,000 min-1
Operative range 4,000 – 8,000 min-1
 
Model 190 : Sheet metal marking instrument

Enables the electro-chemical application of measuring grids using appropriate marking templates which are available with circle diameters from 2 mm upward. Sheet metal markings provide information about the behaviour of sheet metal during forming. The degree of strain due to elongation or compression is clearly recognizable in direction and size on the basis of the deformation of the applied measuring grid.

 
Please contact us for detailed technical information on above machines.
 
 
     
 
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