基本信息:
- 专利标题： NANOPARTICLES IN BINDER JETTING FABRICATION OF METAL OBJECTS
- 申请号：PCT/US2018/019053 申请日：2018-02-21
- 公开(公告)号：WO2018156656A1 公开(公告)日：2018-08-30
- 发明人： BARBATI, Alexander, C. , FONTANA, Richard, Remo , GIBSON, Michael, Andrew , HUDELSON, George , TUNCER, Nihan , SCHUH, Christopher, Allan , KERNAN, Brian, Daniel , SACHS, Emanuel, Michael , HOLENARASIPURA RAGHU, Shashank , TOBIA, Jay, Collin , HART, Anastasios, John , BENN, Ellen, Elizabeth , CRAVEN, Christopher, Anthony , TRUMP, Anna, Marie , RENNER, Christopher, Benjamin , TARKANIAN, Michael J.
- 申请人： DESKTOP METAL, INC.
- 申请人地址： 63 3rd Avenuen Burlington, MA 01803 US
- 专利权人： DESKTOP METAL, INC.
- 当前专利权人： DESKTOP METAL, INC.
- 当前专利权人地址： 63 3rd Avenuen Burlington, MA 01803 US
- 代理机构： MELLO, John, Paul et al.
- 优先权： US62/461,726 20170221
- 主分类号： B22F1/00
- IPC分类号： B22F1/00 ; B22F3/00 ; B33Y80/00 ; B33Y70/00 ; B33Y10/00 ; B29C64/165
摘要：
Devices, systems, and methods are directed to the use of nanoparticles for improving strength fabrication of three-dimensional objects formed through layer-by-layer process in which an ink is delivery of a binder delivered onto successive layers of a powder of inorganic particles in a powder bed. More specifically, nanoparticles of inorganic material can may be introduced into one or more layers of the metal powder in the powder bed and thermally processed to facilitate sinter necking, in the powder bed, of the metal particles forming the three-dimensional object. Such sinter necking in the powder bed can may improve strength of the three-dimensional objects being fabricated and, also or instead, can may reduce the likelihood of defects associated with subsequent processing of the three-dimensional objects (e.g., slumping and shrinking in a final sintering stage and/or inadequate densification of the final part).
公开/授权文献:
IPC结构图谱:
| B | 作业；运输 |
| --B22 | 铸造；粉末冶金 |
| ----B22F | 金属粉末的加工；由金属粉末制造制品；金属粉末的制造 |
| ------B22F1/00 | 金属粉末的专门处理；如使之易于加工，改善其性质；金属粉末本身，如不同成分颗粒的混合物 |