公开(公告)号：US20190054535A1

公开(公告)日：2019-02-21

申请号：US16058217

申请日：2018-08-08

Applicant: ROLLS-ROYCE plc

Inventor： Andrew D. NORTON ,  Moataz M. ATTALLAH ,  Khamis E. ESSA ,  Sheng LI

IPC: B22F3/11 ,  B22F3/105 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/342 ,  B23K26/14

Abstract: Method of forming porous structures which are permeable in two or more dimensions. The method comprises forming successive layers of material on top of one another and, for each layer, selectively fusing powdered material according to a geometry having voids to be permeable in one or more dimensions, and selectively eroding material from the layer to create additional permeability.

公开(公告)号：US20190054534A1

公开(公告)日：2019-02-21

申请号：US16058189

申请日：2018-08-08

Applicant: ROLLS-ROYCE plc

Inventor： Andrew D. NORTON ,  Moataz M. ATTALLAH ,  Khamis E. ESSA ,  Sheng LI

IPC: B22F3/11 ,  B22F3/105 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/342

Abstract: Method of forming porous structures which are permeable in two or more dimensions. The method comprises forming successive layers of material on top of one another and, for each layer, selectively fusing powdered material according to a geometry having voids to be permeable in one or more dimensions at an energy density which is sufficient to only fully fuse a portion of said material to create additional permeability.