Cold forming of AlCu4MgSi alloy by orbital forging

Abstract

The article presents selected theoretical and experimental test results for cold forming of AlCu4MgSi aluminum alloy conducted on an oscillating die press PXW-100AAb. Cylindrical samples of aluminum alloy used in the tests were the T42 ones subjected to the process of natural ageing as well as the ones in transient W temper obtained by solution treatment. The experimental tests were supplemented with a numerical analysis based on the FEM. It was assumed in the calculations that a rigid-plastic material model, with thermal phenomena taken into account, and, additionally, the Cockroft-Latham material cracking model would be used. The obtained test results proved that additional heat treatment preceding cold forming allows for increasing the limit strain.