公开(公告)号：US12023863B2

公开(公告)日：2024-07-02

申请号：US17298011

申请日：2019-04-29

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Jordi Blanch Costa ,  Daniel Gonzalez Perello ,  Sergi Culubret Cortada ,  Fernando Juan Jover ,  Steven J. White ,  Donald Higgins

IPC: B29C64/218 ,  B29C64/295 ,  B33Y30/00

CPC classification number: B29C64/218 ,  B29C64/295 ,  B33Y30/00

Abstract: An additive manufacturing machine (34) comprising a build material spreading system (2). The spreading system (2) has a moveable spreader (4) with an exterior surface (8) to spread build material. The spreading system (2) also has a heater (10) located separate from the spreader (4). The heater (10) has a heat dissipater (20) extending around the spreader (4) to retain, between the dissipater (20) and the spreader (4), air (36) heated by the dissipater (20).