대한기계학회논문집A (Transactions of the Korean Society of Mechanical Engineers A)
- 제21권9호
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- Pages.1400-1413
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- 1997
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- 1226-4873(pISSN)
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- 2288-5226(eISSN)
DOI QR Code
반용융 알루미늄재료의 단조공정조건이 기계적 성질에 미치는 영향
The effect of forging process conditions of semi-solid aluminum material on mechanical properties
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Gang, Chung-Gil
(Busan National University) ;
- Gang, Dong-U (Graduate School of Busan National University)
- 발행 : 1997.09.01
초록
Semi-solid forging(SSF) process of A356 aluminium alloy has been studied to assess the effect of process variables on the component integrity. Semi-solid material(SSM) was fabricated by mechanical and electro-magnetic stirring process. The fabricated SSM by using mechanical stirring process has been carried out on cooling rate of 0.022.deg. C/sec 0.0094.deg. C/sec and stirring speed n=600, 1000 rpm, respectively. The fabricated SSM by using electro-magnetic stirring process is supplied by Pechiney. The holding time and temperature in the semi-solid state before forging also affects the globular microstructure of alloy. Therefore, the influence of these two parameters is discussed in terms of the microstructure of alloy. The SSF process has been conducted with three different die temperatures(
키워드