| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Frontiers in Solidification Science VIII
|
| Presentation Title |
Effect of Vacuum during Flow in High-pressure Die Casting: Water Analog Experiments |
| Author(s) |
Nicole Trometer, Xuejun Huang, Emre Cinkilic, Alan Luo |
| On-Site Speaker (Planned) |
Nicole Trometer |
| Abstract Scope |
High-pressure die casting (HPDC) is used to produce lightweight aluminum and magnesium components. However, a common defect associated with these castings is air entrainment, which negatively affects their soundness and mechanical properties. These defects can be reduced via evacuating air from the die cavity prior to metal injection in HPDC process. Water analog experiments were conducted to validate the effect of vacuum on flow and air entrainment. The experiments used a servo motor and a linear actuator to replicate the shot profile in HPDC cavity fill. A vacuum system was added to the experiments to evaluate the efficiency of vacuum and to obtain the optimal process conditions for vacuum HPDC. The results suggest that adding a vacuum to the HPDC process can significantly reduce the entrapped air during flow, which could improve the mechanical properties of aluminum and magnesium die castings. |
| Proceedings Inclusion? |
Planned: |