公开(公告)号：US20210060869A1

公开(公告)日：2021-03-04

申请号：US17013093

申请日：2020-09-04

Applicant: 3D Systems, Inc.

Inventor： Evan Kuester ,  Joseph Fulerton ,  Christopher Schneider

IPC: B29C69/02 ,  B29C64/112 ,  B29C64/30 ,  B29C64/386 ,  B33Y50/00 ,  B33Y10/00 ,  B33Y80/00 ,  B33Y70/00

Abstract: A method is provided for manufacturing a complex hollow article from a flexible polymer material. The method includes using an additive manufacturing system to form a precursory structure that is formed from a build material and phase change material, melting and removing the phase change material, injecting uncured liquid flexible polymer material into a cavity defined by the build material, curing and solidifying the flexible polymer material, and cracking and removing the build material from the flexible polymer material to provide the hollow article.

公开(公告)号：US11491740B2

公开(公告)日：2022-11-08

申请号：US17013093

申请日：2020-09-04

Applicant: 3D Systems, Inc.

Inventor： Evan Kuester ,  Joseph Fulerton ,  Christopher Schneider

IPC: B29C69/02 ,  B29C64/112 ,  B29C64/30 ,  B29C64/386 ,  B33Y50/00 ,  B33Y80/00 ,  B33Y70/00 ,  B33Y10/00 ,  B29L31/00 ,  B29K91/00 ,  B29K83/00

Abstract: A method is provided for manufacturing a complex hollow article from a flexible polymer material. The method includes using an additive manufacturing system to form a precursory structure that is formed from a build material and phase change material, melting and removing the phase change material, injecting uncured liquid flexible polymer material into a cavity defined by the build material, curing and solidifying the flexible polymer material, and cracking and removing the build material from the flexible polymer material to provide the hollow article.