... Group, 20 07 All rights reserved OPTIMIZATION OF PISTON VELOCITY PROFILE 140 Two Shot Profiles Provided: 0.42m/s Slow Shot to m/s Fast Shot 0 .23 m/s Slow Shot to m/s Fast Shot Plunger Speed (ips) 120 ... Speed (ips) 120 100 80 60 40 20 0 0 .2 0.4 0.6 Time (s) Copyright © ESI Group, 20 07 All rights reserved 0.8 Air Entrapment Air Trapped In Sleeve Copyright © ESI Group, 20 07 All rights reserved Filling ... Centre Copyright © ESI Group, 20 07 All rights reserved Microstructure Validation Copyright © ESI Group, 20 07 All rights reserved Case Study AL HPDC Copyright © ESI Group, 20 07 All rights reserved...