| 摘要 |
PURPOSE:To obtain the non-heat-treated type free-cutting aluminum alloy by incorporating specific amounts of Si, Mn, Fe, Zn, Cu, Pb, Sn, and Bi to Al. CONSTITUTION:The aluminum alloy consists of, by weight, 0.5-3% Si, 0.3-2% Mn, 0.3-1% Fe, 0.2-2% Zn, 0.1-1% Cu, 0.2-1.5% Pb, 0.2-2% Sn, 0.1-1.5% Bi, and the balance Al with inevitable impurities; (Pb+Sn+Si)<3.
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