公开(公告)号：US10850449B2

公开(公告)日：2020-12-01

申请号：US16232955

申请日：2018-12-26

申请人： PostProcess Technologies, Inc.

发明人： Daniel Joshua Hutchinson ,  Marc Farfaglia

IPC分类号： B29C64/30 ,  B22F3/24 ,  B33Y40/00 ,  B29C64/35 ,  B22F3/105

摘要： An apparatus and method for removing support material from and/or smoothing surfaces of an additively manufactured part (the “AM part”) is disclosed. The apparatus may include a chamber, a support surface within the chamber, and one or more nozzles within the chamber. The nozzles may be the same size or different sizes. The support surface may be configured to support the AM part. The support surface may have one or more openings sized and configured to allow the fluid to pass through the opening(s). The nozzles may be configured to spray a fluid at the AM part, and the spray may be an atomized or semi-atomized spray of the fluid.

公开(公告)号：US20190322898A1

公开(公告)日：2019-10-24

申请号：US16390988

申请日：2019-04-22

申请人： PostProcess Technologies, Inc.

发明人： Daniel Joshua Hutchinson ,  Marc Farfaglia ,  Cassidy Grant

IPC分类号： C09G1/02 ,  B33Y40/00 ,  B24C1/08

摘要： Described are finishing mediums for removing support material and/or for surface finishing of objects made via additive manufacturing techniques. The finishing medium is an aqueous solution containing 1-20% by weight a polyol, 1-20% by weight an anti-corrosion agent, 0.001-10% by weight a hydrotrope. The finishing medium may optionally suspend media particles, thereby forming a finishing suspension. Also described are methods of using the finishing media and finishing suspensions described herein.

公开(公告)号：US20190204234A1

公开(公告)日：2019-07-04

申请号：US16232982

申请日：2018-12-26

申请人： PostProcess Technologies, Inc.

发明人： Daniel Joshua Hutchinson ,  Marc Farfaglia ,  Cassidy Grant

IPC分类号： G01N21/78

CPC分类号： G01N21/78

摘要： A method and an apparatus for detecting whether a liquid comprising one or more improper substances or an improper amount of one or more substances has been added to a system for removing support material from and/or smoothing a surface of a part made by additive manufacturing. The apparatus may have a sample material that is altered if the improper fluid contacts the sample material. The alteration may be due to characteristics of the improper fluid at the time the improper fluid is added to the system. In some embodiments of the invention, the sample material is capable of chemically reacting with the improper fluid. The apparatus also includes a sensor capable of detecting whether the sample material has been altered.