Casting Characteristics of Aluminum Die Casting Alloys

Makhlouf, Makhlouf M. ; Apelian, Diran

Worcester Polytechnic Institute (United States)

关键词: Casting;    Fluidity;    Sludge Formation;    Die Soldering;    Dies;   

DOI  :  10.2172/792701
RP-ID  :  DOE/ID/13716
RP-ID  :  FC07-99ID13716
RP-ID  :  792701

美国|英语

来源: UNT Digital Library

【 摘 要 】

The research program investigates the casting characteristics of selected aluminum die casting alloys. Specifically, the alloys' tendencies towards die soldering and sludge formation, and the alloys' fluidity and machinability are evaluated. It was found that: When the Fe and Mn contents of the alloy are low; caution has to be taken against possible die soldering. When the alloy has a high sludge factor, particularly a high level of Fe, measures must be taken to prevent the formation of large hardspots. For this kind of alloy, the Fe content should be kept at its lowest allowable level and the Mn content should be at its highest possible level. If there are problems in die filling, measures other than changing the alloy chemistry need to be considered first. In terms of alloy chemistry, the elements that form high temperature compounds must be kept at their lowest allowable levels. The alloys should not have machining problems when appropriate machining techniques and machining parameters are used.