Sheet metal testing machine (BUP 600)

               Sheet metal testing machine (BUP 600)

This fully PC-controlled multi-purpose hydraulic sheet metal forming machine, is designed for formability testing of sheet metals in accordance with the most common standards and procedures.
Features
Its main advantages are:

• an easy and rapid inter-changeability of the test tools,
• availability of tools for all well-known test standards and procedures,
• low cylinder-piston frictions delivering accurate measurement acquisitions, and excellent reproducibility, and
• numerous modular possibilities of extensions.

These features make this machine an excellent means for performing advanced research in studying forming processes and for validation of numerical models as well as for educational training of master’s and PhD candidates.

The machine has :

• a 600 kN load capacity,
• a maximum clamping force of 50 kN,
• a maximum test stroke of 120 mm, and
• a maximum test speed of 750 mm/min.
• tooling for earing tests,
• Nakajima and Marciniak-Kuczynski formability test set-ups,
• square cup drawing tests, and
• bulgetests.

Although the intention of the machine is to test sheet metals, it can also be applied with samples made of thermoplastics.
Additional equipment
The machine has been equipped with a pair of high resolution black and white Prosilica cameras GC2450, with a resolution of 2448x2050 pixels, and a frame rate of 15 fps at full resolution. The cameras are PCcontrolled by software for image acquisition. A frame has been built on the machine that allows easy positioning of the cameras and image acquisition during testing, thereby providing the opportunity for strain field measurement on the upper surface of the test pieces.

Applications

A multi-purpose hydraulic sheet metal forming machine with 600kN load capacity (Zwick/Roell BUP 600) and multiple forming tools can be used for evaluating mechanical deformation of sheet materials. Forming behavior has to be characterized, both for the modeling of newly developed products, and for quality assurance / production control. This machine is considered to be an ideal tool for advanced research on the fundamentals of forming and formability, for validation of constitutive models including fracture.

Related

Lademo O-G, Engler O, Keller S, Berstad T, Pedersen KO, Hopperstad OS: Identification and validation of constitutive model and fracture criterion for AlMgSi alloy with application to sheet forming, Materials.