摘要 |
PURPOSE:To obtain an Al alloy having such high strength that the thickness can be reduced, improved deep drawability and improved surface properties after deep drawing by specifying the amounts of Si and Fe contained. CONSTITUTION:This Al alloy consists of 0.41-0.80wt% Si, >1.25-1.75wt% Fe and the balance Al with impurities. In the composition, Si inhibits earing by deep drawing and increases the elongation, and Fe increases the strength and makes the grains fine. The Al alloy has both strength and ductility and superior formability in a semihardened state as well as in a softened state.
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