Community Research and Development Information Service - CORDIS


Final report on Contract No 7210-PR/053, 1 July 1997 to 31 December 2000.

This report deals with shaped cans. Two main aspects have been studied:
- Experimentation.
- Simulation with Pamstamp software.

Tubes have been expanded by different processes and with different shapes: mechanical expansion with 16 and 8 segments, with 16 shaped segments. In each case, strain state, height and thickness have been considered. The influence of many parameters such as anisotropy coefficient, friction and shape has been confirmed. It has been demonstrated on the contrary that the role of the behaviour role of the material is less significant, even if it cannot, of course, be neglected.

The modelling of the weld was not really a problem. Standard and laser weld have been simulated without any problem of convergence. Their effect seems to be very local, only a quarter of the tube. The tube is higher there, it is thicker on the weld and thinner close to it and great stresses are concentrated in this area.

The simulation has allowed us to improve our knowledge in shaping, but some problems remain. The results of the models do not admit any comparison to experiments. Calculations can be compared to one another but not to reality. This may be due to the software, which has not been conceived for such applications.

Additional information

Authors: ESPINA C, Aceralia, Aviles (ES);HÔHN W, Sollac, Florange (FR);MALLACE M, Corus UK Ltd, Port Talbot (GB);LOUWERSE G, Corus NL, IJmuiden (NL)
Bibliographic Reference: EUR 20318 EN (2002), pp.64. Euro: 10.00
Availability: EUR-OP reference: KI-NA-20318-EN-S Available from EUR-OP sales agents. URL:
ISBN: ISBN: 92-894-3648-4
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