CPC B29C 64/165 (2017.08) [B22F 10/38 (2021.01); B22F 10/43 (2021.01); B22F 10/62 (2021.01); B22F 10/64 (2021.01); B22F 10/66 (2021.01); B22F 12/55 (2021.01); B28B 1/001 (2013.01); B28B 17/0081 (2013.01); B29C 64/112 (2017.08); B29C 64/209 (2017.08); B29C 64/336 (2017.08); B29C 64/393 (2017.08); B29C 64/40 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12); B33Y 70/00 (2014.12); B22F 10/00 (2021.01); B22F 10/14 (2021.01); B22F 12/90 (2021.01); B29K 2505/00 (2013.01); B29K 2509/02 (2013.01)] | 9 Claims |
1. A method of making an object by ink jet printing, the method comprising:
jetting object material including particles to form a product structure, the object material having a first sintering temperature;
simultaneous with or prior or before to forming the product structure, jetting support material including particles, to form a support structure, wherein the support structure is jetted in a manner supporting a product structure, and wherein the support material has a sintering temperature that is greater than the sintering temperature of the object material, the jetted object and the jetted support together constituting a green part;
heating the green part to a temperature at or above the first sintering temperature and below the second sintering temperature to thereby at least partially sinter the jetted object without substantially sintering the jetted support; and
removing the substantially unsintered support from the at least partially sintered object;
wherein a barrier layer is not formed between the product structure and the support structure.
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