|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Aluminum Alloys, Processing and Characterization
||C-5: High Thermal Conductivity Aluminum Alloy for High Pressure Die Casting
||Cheol Woo Kim, Jae-Ik Cho, Jung-Han Kim, Min-Suk Oh, Young-Chan Kim
|On-Site Speaker (Planned)
||Cheol Woo Kim
Recently, demand of aluminum alloys used for the high thermal conductivity application has been increased by using the high pressure die casting process(HPDC). HPDC is one of the precision casting methods with high productivity.
In this study, die castable alumium alloy was suggested by evaluating and adjusting the amount of alloying elements, Cu and Si, without deterioration of thermal conductivity. It was found that among the wide variaty of alloying elements, Mn was the most harmful element to the thermal conductivity of alumium and Si was still necessary to have sufficient fluidity and minimize hot tearing tendency. Moreover, Cu content up to 1.0wt% was needed to have enough strength to endure the ejection of the casting from the die without deformation. A heat sink component was successfully fabricatd by using HPDC process and Al-2.0wt%Si-1.0%Cu alloy with small amount of Fe, about 0.6wt%.
||Planned: Light Metals