公开(公告)号：EP2895283A4

公开(公告)日：2015-10-21

申请号：EP13837198

申请日：2013-09-10

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BULLIED STEVEN J ,  VERNER CARL R ,  PORTER STEVEN D ,  PARK JAMES B

IPC: B22C9/10 ,  B22C7/02 ,  B22C9/04

CPC classification number: F01D9/041 ,  B22C7/02 ,  B22C9/04 ,  B22C9/10 ,  B22C9/108 ,  B22C9/24 ,  B22D25/02 ,  B22D29/001 ,  F01D5/187 ,  F05D2230/21 ,  F05D2230/211 ,  Y02T50/671 ,  Y02T50/673 ,  Y02T50/676

Abstract: A casting mold assembly includes an airfoil defining section and a casting core. The airfoil defining section includes an outer mold wall and a direct-shelled inner mold wall. The direct-shelled inner mold wall is disposed within a forward chordwise portion of the airfoil defining section. The direct-shelled inner mold wall includes an aft end having an external radius measuring more than about 0.075 in. (1.9 mm). The casting core is secured within an aft chordwise portion of the airfoil defining section, and includes an aft end with an external radius measuring less than about 0.075 in. (1.9 mm). A cast component and a method for making the casting mold assembly are also disclosed.