FORMABILITY OF THIN SHEETS FROM ALUMINUM ALLOYS
Emil Spišák 1  
,  
Janka Majerníková 1  
,  
 
 
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Technical University of Košice, Letná 9, 040 02 Košice, Slovak Republic
CORRESPONDING AUTHOR
Emil Spišák   

Technical University of Košice, Letná 9, 040 02 Košice, Slovak Republic
Publish date: 2016-12-01
 
Adv. Sci. Technol. Res. J. 2016; 10(32):248–253
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ABSTRACT
In this contribution there have been evaluated properties of four types of sheets made from aluminium alloys. In the case of each of the examined sheets there has been checked its shearing ability via the influence of punch-die clearance change on the quality of blanking edge. Quality of blanking edge is characterized by a ratio of plastic zone height to the total thickness of the sheared material. Formability during the drawing process was measured with earring test. Results are presented by the earring coefficient (unequal height) of the cups.