公开(公告)号：US12049042B2

公开(公告)日：2024-07-30

申请号：US17694378

申请日：2022-03-14

Applicant: Wisconsin Alumni Research Foundation

Inventor： Lianyi Chen ,  Luis Izet Escano

IPC: B29C64/218 ,  B29C64/153 ,  B33Y10/00 ,  B33Y30/00

CPC classification number: B29C64/218 ,  B29C64/153 ,  B33Y10/00 ,  B33Y30/00

Abstract: Aspects of the disclosure are directed to powder spreading and an apparatus therefor. As may be implemented in accordance with one or more embodiments, an apparatus having a flexible core and a shell on a surface of the core is used to displace powder in a powder bed. The shell has a low coefficient of friction, for example on the order of 0.10, and may operate to conduct static electricity away from the powder. The shell may be engaged with the powder to displace the powder and form a uniform powder layer having a planer upper surface, as the core is advanced across the powder bed.

公开(公告)号：US20230286212A1

公开(公告)日：2023-09-14

申请号：US17694378

申请日：2022-03-14

Applicant: Wisconsin Alumni Research Foundation

Inventor： Lianyi Chen ,  Luis Izet Escano

IPC: B29C64/218 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/153

CPC classification number: B29C64/218 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/153

Abstract: Aspects of the disclosure are directed to powder spreading and an apparatus therefor. As may be implemented in accordance with one or more embodiments, an apparatus having a flexible core and a shell on a surface of the core is used to displace powder in a powder bed. The shell has a low coefficient of friction, for example on the order of 0.10, and may operate to conduct static electricity away from the powder. The shell may be engaged with the powder to displace the powder and form a uniform powder layer having a planer upper surface, as the core is advanced across the powder bed.