公开(公告)号：US20210114085A1

公开(公告)日：2021-04-22

申请号：US16654902

申请日：2019-10-16

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Carl R. Verner ,  David A. Krause

IPC: B22C9/10

Abstract: A casting core assembly is disclosed herein. The casting core assembly comprises a casting core and a bumper assembly. The bumper assembly is disposed on an outer surface of the casting core. The bumper assembly comprises a receptacle and a metal apparatus. The metal apparatus may be a pin, a sphere, or the like.

公开(公告)号：US11642720B2

公开(公告)日：2023-05-09

申请号：US16654902

申请日：2019-10-16

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Carl R. Verner ,  David A. Krause

IPC: B22C9/10 ,  B22C21/14

CPC classification number: B22C9/10 ,  B22C9/108 ,  B22C21/14

Abstract: A casting core assembly is disclosed herein. The casting core assembly comprises a casting core and a bumper assembly. The bumper assembly is disposed on an outer surface of the casting core. The bumper assembly comprises a receptacle and a metal apparatus. The metal apparatus may be a pin, a sphere, or the like.

公开(公告)号：US20200276637A1

公开(公告)日：2020-09-03

申请号：US16705003

申请日：2019-12-05

Applicant: United Technologies Corporation

Inventor： John Joseph Marcin ,  Mark F. Zelesky ,  Joel H. Wagner ,  Theodore W. Hall ,  David A. Krause ,  Ben S. Reinert

IPC: B22D25/02 ,  B22C3/00 ,  B22C7/02 ,  B22C9/04 ,  B22C9/10 ,  B22C9/12 ,  B22C9/24 ,  B22D29/00 ,  B22F3/10 ,  B22F3/24 ,  B22F7/04 ,  B23K1/00 ,  B23K1/19

Abstract: A method of method of making an airfoil includes making a refractory metal core that defines an interior of the airfoil by a tomo-lithographic process, making a mold that defines an exterior of the airfoil, inserting the refractory metal core into the mold, and pouring an airfoil material between the refractory metal core and the mold to cast the airfoil.

公开(公告)号：US10556269B1

公开(公告)日：2020-02-11

申请号：US15473403

申请日：2017-03-29

Applicant: United Technologies Corporation

Inventor： John Joseph Marcin ,  Mark F. Zelesky ,  Joel H. Wagner ,  Theodore W. Hall ,  David A. Krause ,  Ben S. Reinert

IPC: B22C9/10 ,  B22C9/04 ,  B22C9/12 ,  B22D29/00 ,  B22D25/02 ,  B22C3/00 ,  B22C9/24 ,  B22C7/02 ,  B22F3/10 ,  B22F3/24 ,  B22F7/04 ,  B23K1/00 ,  B23K1/19 ,  F04D29/32 ,  F04D29/54 ,  F04D29/58 ,  F01D5/18 ,  F01D9/02 ,  F01D25/12 ,  B23K103/12

Abstract: A method of making a refractory metal core includes forming two layers of the core out of a material. The layers are bonded together to form a laminate master pattern, and a flexible mold is formed around the pattern. The pattern is removed from the flexible mold, and pulverulent refractory metal material is poured into the flexible mold. The pulverulent refractory metal material is sintered to form the refractory metal core.

公开(公告)号：US11014151B2

公开(公告)日：2021-05-25

申请号：US16705003

申请日：2019-12-05

Applicant: United Technologies Corporation

Inventor： John Joseph Marcin ,  Mark F. Zelesky ,  Joel H. Wagner ,  Theodore W. Hall ,  David A. Krause ,  Ben S. Reinert

IPC: B22C9/10 ,  B22C9/12 ,  B22C9/24 ,  B22C9/04 ,  B22D25/02 ,  B22D29/00 ,  B22C3/00 ,  B22C7/02 ,  B22F3/10 ,  B22F3/24 ,  B22F7/04 ,  B23K1/00 ,  B23K1/19 ,  B23K103/12 ,  F01D5/18 ,  F01D9/02 ,  F01D25/12 ,  F04D29/32 ,  F04D29/54 ,  F04D29/58

Abstract: A method of making an airfoil includes making a refractory metal core that defines an interior of the airfoil by a tomo-lithographic process, making a mold that defines an exterior of the airfoil, inserting the refractory metal core into the mold, and pouring an airfoil material between the refractory metal core and the mold to cast the airfoil.