|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Defects and Properties of Cast Metals
||Rejection Rate-melt Quality Relationship in High Pressure Die Casting of Al-Si Alloys
||Halil Kalkan, Omer Vardar, Eray Erzi, Derya Dispinar
|On-Site Speaker (Planned)
Controlling the quality of liquid metal is the most important parameter to decrease rejection rate in high pressure die casting of aluminum alloys. In this work, 3 different cases were investigated. In each tests, melt quality was measured by reduced pressure test and bifilm index was recorded. In first case, blister formation after heat treatment was correlated with melt quality. In second case, decrease in hard spots and improved surface finish was found when AlTiB was not used. In third case, PCD (polycrystalline diamond) tool life was significantly improved when provider with better charge quality was used. In each cases, a direct correlation between melt quality (bifilm index) and the rejection rate was observed.
||Planned: Supplemental Proceedings volume