Thixoextrusion for 7075 Al Wrought Alloy Tube

Dong In Jang; Young Ok Yoon; Shae K. Kim

doi:10.4028/www.scientific.net/SSP.141-143.267

Paper Titles

Semi-Solid Extrusion of Complex-Shaped Steel Rods Using Ceramic Dies
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Deposition of Oxides as Tool Protection for Large Thixoforming Dies by Using the Pulsed MSIP-PVD Process
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Laser Surface Modification of Tool Steel for Semi-Solid Steel Forming
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Servomechanical Press: A New Press Concept for Semisolid Forging
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Thixoextrusion for 7075 Al Wrought Alloy Tube
p.267

Rheoforging of Wrought Aluminum Alloys
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Forging Process of Wrought Aluminum Alloy with Controlled Solid Fraction by Electromagnetic Stirring
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EN AC-46500 Injected by Semi-Solid Rheocasting
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The Use of CrNiCo-Based Superalloy as Die Material in Semi-Solid Processing of Steels
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HomeSolid State PhenomenaSolid State Phenomena Vols. 141-143Thixoextrusion for 7075 Al Wrought Alloy Tube

Thixoextrusion for 7075 Al Wrought Alloy Tube

Abstract:

The aim of this study was to improve extrudability limit, eliminate welding line and obtain optimum thixoextrusion conditions for manufacturing tubes of 7075 Al wrought alloy. By thixoextrusion, it was possible to improve deformability, control isotropy with extrusion direction, eliminate welding line (seamless) and save cost due to low energy consumption compared with conventional extrusion processes. The welded part was not observed at the welding line area. The grains of thixoextruded tube were homogeneously distributed and equiaxed grains were observed. Therefore, thixoextrusion is the most effective variable for the control of the magnitude of the welding line.