EVALUATION OF THE FORMABILITY OF EN AW-5754 H22 ALUMINIUM-MAGNESIUM ALLOY PERFORATED SHEETS DURING THE SINGLE POINT INCREMENTAL FORMING PROCESS

Ana-Maria BUCUR, Tomasz TRZEPIECIŃSKI, Mihaela OLEKSIK, Delia Rebeca VASILCA, Valentin OLEKSIK

Abstract


The present paper aims to study the formability of EN AW-5754 H22 aluminium alloy perforated sheets formed by incremental forming process based on the maximum allowable wall angle. For this study, a variable angle cone frustum trajectory was used, and nine specimens were incrementally formed, corresponding to a 32 full factorial experiment. We employed three levels of variation for two parameters: the perforated hole diameter (2.5, 3 and 4mm) and the distance between two holes measured between the perforated edges (2, 3 and 4mm). The results are focused on determining the main strains, the thickness reduction, the height of the part, the maximum allowable wall angle and the maximum value of the forces on the three directions.


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References


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