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Investigations of thickness distribution in hole expanding of thin steel sheets

Frącz W., Stachowicz F., Trzepieciński T.

Archives of Civil and Mechanical Engineering

2012

Vol. 12, no. 3

279--283

This work aims to investigate the effect of punch geometry on the sheet thickness distribution in the collar formed during hole-flanging process. Three different punch geometries: cylindrical (flat-bottomed), hemispherical and conical were used in the experiment as well as in numerical simulation. Extra deep drawing quality (EDQ) steel sheet with a thickness of 1.0 mm was selected for this work. The results of experimental investigations were compared with the results of numerical modeling performed using the FE based MSC.Marc +MENTAT computer code.