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Effect of Process Parameters on Rectangular Cup Impact Extrusion of an AA1070 Aluminum Alloy
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  • Journal title : Transactions of Materials Processing
  • Volume 24, Issue 5,  2015, pp.323-331
  • Publisher : The Korean Society for Technology of Plasticity
  • DOI : 10.5228/KSTP.24.5.323
 Title & Authors
Effect of Process Parameters on Rectangular Cup Impact Extrusion of an AA1070 Aluminum Alloy
Jo, M.K.; An, E.; Park, I.W.; Song, I.S.; Kim, H. Y.; Kim, D.; Moon, Y.H.; Kim, J.H.;
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 Abstract
Impact extrusion is an economical and productive process that can replace the multistage deep drawing process for producing deep rectangular cases. In the current work, a three-dimensional finite element analysis of the impact extrusion process of a commercial purity aluminum alloy (AA1070) was performed to predict loads, material flow, and deformed shapes using the Hansel-Spittel rheology law, which describes the flow stress at various temperatures and strain rates. The role of various process parameters such as friction, clearance between punch and die, aspect ratio and thickness of billet on the process and the shapes was analyzed.
 Keywords
Impact Extrusion;Deep Rectangular Case;Friction;Clearance;Aspect Ratio;Thickness;Finite Element Analysis;
 Language
Korean
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