公开(公告)号：DE602004026820D1

公开(公告)日：2010-06-10

申请号：DE602004026820

申请日：2004-10-27

Applicant: UNITED TECHNOLOGIES CORP

Inventor： OTERO EDWIN ,  STRONG PATRICK

IPC: B22C9/10 ,  F01D5/08 ,  B22C9/04 ,  B22C9/24 ,  F01D5/18 ,  F01D9/02 ,  F01D25/00 ,  F02C7/00

Abstract: A core (32) for casting a metal part having a body with solid portions (34) spaced apart by hollow portions (36). The body includes at least one support element (38) extending between adjacent solid portions. The support element provides stiffness and strength for the casting core during the casting process. The support element has an optimized shape to prevent the core from fracturing during the casting process and to minimize operating stress in the metal part around the area formed by the support element.