公开(公告)号：WO2018111404A1

公开(公告)日：2018-06-21

申请号：PCT/US2017/057831

申请日：2017-10-23

Applicant: GENERAL ELECTRIC COMPANY

Inventor： MCCARREN, Michael, John ,  DEINES, James Herbert ,  YANG, Xi ,  PRZESLAWSKI, Brian David

IPC: B22C9/02 ,  B22C9/10 ,  B22C13/08 ,  B22C13/12 ,  B22D29/00 ,  B28B1/00 ,  G03F7/00 ,  G03F7/20 ,  B29C64/124 ,  B29C64/135 ,  B29C64/129

Abstract: The present disclosure generally relates to integrated core-shell investment casting molds that provide filament structures corresponding to cooling hole patterns on the surface of the turbine blade or stator vane, which provide a leaching pathway for the core portion after metal casting. The invention also relates to core filaments that can be used to supplement the leaching pathway, for example in a core tip portion of the mold.

公开(公告)号：WO2018111397A1

公开(公告)日：2018-06-21

申请号：PCT/US2017/056715

申请日：2017-10-16

Applicant: GENERAL ELECTRIC COMPANY

Inventor： DEINES, James Herbert ,  PRZESLAWSKI, Brian David ,  MCCARREN, Michael John ,  YANG, Xi ,  PETERSON, Brian Patrick

IPC: B22C9/02 ,  B22C9/10 ,  B22C13/08 ,  B22C13/12 ,  B22D29/00 ,  B28B1/00 ,  G03F7/00 ,  G03F7/20 ,  B29C64/124 ,  B29C64/135 ,  B29C64/129 ,  B22C21/14

Abstract: The present disclosure generally relates to partial integrated core-shell investment casting molds that can be assembled into complete molds. Each section of the partial mold may contain both a portion of a core and portion of a shell. Each section can then be assembled into a mold for casting of a metal part. The partial integrated core-shell investment casting molds and the complete molds may be provided with filament structures corresponding to cooling hole patterns on the surface of the turbine blade or the stator vane, which provides a leaching pathway for the core portion after metal casting. The invention also relates to core filaments that can be used to supplement the leaching pathway, for example in a core tip portion of the mold.