ALUMINUM ALLOY CASTING FOR SQUEEZE CASTING EXCELLENT IN STRENGTH AND TOUGHNESS AND PRODUCTION THEREOF

摘要

PURPOSE: To produce an aluminum alloy casting for squeeze casting having mechanical properties equivalent to those of a forging material and low in cost compart to a forging material and provide a method for producing the same. ;CONSTITUTION: This aluminum alloy casting for squeeze casting is the one contg., by weight, 0.6 to 1.0% Si, 0.5 to 1.0% Cu, 0.5 to 1.2% Mg, 0.002 to 0.20% Ti and 0.0004 to 0.04% B, and the balance Al with inevitable impurities. The aluminum alloy molten metal having the same componental compsn. is filled into die product part at 650 to 800°C molten metal temp., and after that, directional solidification is executed from the initial solidified part of the casting product to a sprue part under a high pressure of ≥500kgf/cm², by which the squeeze casting aluminum alloy casting is produced.;COPYRIGHT: (C)1995,JPO