반응고 A356 합금의 재가열 특성 및 반용융 압출

• Published in: 한국주조공학회지 Vol. 34; no. 4; pp. 123 - 129
• Main Authors: 김대환, Dae Hwan Kim, 정현주, Hyun Ju Jung, 심성용, Sung Yong Shim, 임수근, Su Gun Lim, 이상용, Sang Yong Lee
• Format: Journal Article
• Language: Korean
• Published: 한국주조공학회 30.08.2014
• Subjects: Cooling plate method; Reheating process; Semi-solid alloy; Thixo-extrusion; 금속공학; Semi-solid alloy; Reheating process; Thixo-extrusion; Cooling plate method
• ISSN: 1598-706X; 2288-8381
• DOI: 10.7777/jkfs.2014.34.4.123

This work presents the results of a thixo-extrusion process applied to aluminum alloy and and reheating characteristics of semisolid A356 Alloy using have been discussed. The reheating experiment was performed using an electric resistance furnace and multistage heating for uniform reheating. The thixo-extrusion was performed at the optimal reheating conditions of the semi-solid A356 alloy, the the extrusion conditions were an extrusion ratio of 33 and ram speed of 6 mm/sec. The results showed that the thixoextrusion of semi-solid A356 alloy fabricated by the cooling slope reduced the extrusion pressure by 180% in comparison with hot extrusion, and that a sound extrusion could be obtained in spite of the same extrusion ratio and strain rate.