公开(公告)号：WO2019209282A1

公开(公告)日：2019-10-31

申请号：PCT/US2018/029299

申请日：2018-04-25

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

Inventor： ROMAN, Justin M. ,  ALONSO BECERRO, Xavier ,  KRASOWSKI, Wojciech Jerzy ,  TELFER, Neil ,  DUDA, Michael

IPC: B29C64/30 ,  B29C41/46 ,  B33Y40/00

Abstract: There is disclosed a method of cooling a bed of build material 12, 14 generated by additive manufacture. A container 10 containing a bed of build material may be provided, the bed having a hot region relative to ambient temperature. The container may be vibrated to fluidize unfused build material 12 in the container so as to cause convection of the unfused build material to cool the hot region. There is also disclosed a method of cooling a bed of build material 12, 14 including vibration when the temperature of a hot region in the bed of build material is higher than an unpacking threshold. There is also disclosed a cooling apparatus for cooling a bed of build material by vibration.