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1. (WO2017176763) UNIT CELL TITANIUM CASTING

Pub. No.:    WO/2017/176763    International Application No.:    PCT/US2017/025955
Publication Date: Fri Oct 13 01:59:59 CEST 2017 International Filing Date: Wed Apr 05 01:59:59 CEST 2017
IPC: B22D 18/06
B22D 21/06
B22D 25/02
A63B 53/04
Applicants: CALLAWAY GOLF COMPANY
Inventors: SMITH, Norm
WICKETT, Lowell
PARAISO, Jan
LEPOSKY, Mark
CROSS, Jeff
SHEEHAN, John
RICHARDSON, Bill
Title: UNIT CELL TITANIUM CASTING
Abstract:
A system (5) and method (800) for unit cell casting of titanium or titanium-alloys is disclosed herein. The system (5) comprises an external chamber (45), a crucible (10) positioned within the external chamber (45), an induction coil (15) positioned around the crucible, an internal chamber (40) positioned within the external chamber (45), and a mold (30) positioned within the internal chamber (40). The external chamber (45) is evacuated and a pressurized gas is injected into the evacuated external chamber (45) to create a pressurized external chamber (45). An ingot (20) is melted within the crucible utilizing induction heating generated by the induction coil (15). The internal chamber (40) is evacuated to create an evacuated internal chamber (40). The titanium alloy material of the ingot (20) is completely transferred into the mold (30) from the crucible (10) using a pressure differential created between the external chamber (45) and the internal chamber (40).