A novel process for transforming sheet metal blanks: Ridged die forming |
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Authors: | Mark A Carruth Julian M Allwood |
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Affiliation: | Department of Engineering, University of Cambridge, Trumpington Street, Cambridge CB2 1PZ, United Kingdom |
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Abstract: | Up to 20% of all sheet metal produced is scrapped as blanking skeletons. A novel process is therefore designed and examined, aiming to transform tessellating ‘pre-blanks’ in-plane into the real blanks required for stamping. Prior to blanking, the sheet is formed with a set of ridged dies, from which pre-blanks are cut and then flattened into true blanks. Several different approaches to designing ridged dies are evaluated by simulation and experiment, and the best results demonstrate a potential reduction in blanking yield losses for can-making from 9.3% to 6.9%. |
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Keywords: | Sheet metal Stamping Blanking |
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