??? ?? ????? ????????? ??????? ?????? ??????? ??? ???? ?? ?????? ?????? ????? ????? ?????? ?????? ???????? ??????? ??????? ???? 201 ???????? ????? ???????? ?? ????? ?? ??? ?? ?????? ???? ????? ???? ????? ???? ??????? ??????? ??? ????? ??????? ?????? ???????? ??? ????? ?? ??????? ???????? ???? ??? ???? ????? ?????? ????? ????? ??????? ???? ????? ??????? ?????? ???????: ?????? ????? ??????? ??????? ?? ?? ???? ??????? ?????? ??????? ???? ??????? ????? ?????? ?? ?????? ?????? ???????. ?? ????? ????? ??????????? ??????? ???????? ??? ?? ???????? ???? ?? ????? ?? ?? ???? ?????????? ????????? ?????? ??????? ?????? ??????? ?? ????? ?????? ?????? ????? ???????? ?? ??????? ??????? ???????? ??????? ????? ??????? ?????? ???????.

?? ??? ?? ????? ??????? ?????? ??????? ????????? ????? ?????? ??? ?? ????? ???? ????? ??????? ?????? ??????? 2.0 ????? ?????? (Binder Jetting/3DP? ?????? ????? ???? ??? ???? BJ). ????????? ?? ??????? ?????? ??????? 1.0? ??? PBF ? DED ?????? ?? ?????? ????? ?????? ??????? ???????? ?? ??????? ????? "????? ??????"? ????? ????? ???????? ??????? ???????? ??? ???? ?? ????????? ??????? ?????????? ??? ????? ????? ????????? ???????? ??? ???? ????? ???????? ????? "??? ????"? ???????? ?????? ??????? 2.0 ????? ????? ?????? (?????? ????? ???? ??? ???? BJ). ???? ????? ??????? ?????? ??????? 2.0 BJ ??????? ?????? ??????? ???????? ????? "??? ????" ????? ????? ????? ????? ??????? ?????? ?????? ????? ???? ???? ?????? ????????? ?????? ??????? ??????? ?????? ???????? ???????? ????????? ????? ????? ?? ????? ??????? ??? ????? ??? ????? ??????? ????? ????? ????? ??????? ????? ??????? ?????? ?????? ??????? ???????? ????? ???? ??????? ??? ?? ???????? ???? ?????? ?????? ??????? ???? ?????? ?????????? ??????? ?????? ???????. ???? ????. ?? ??????? ?? ???? ??????? ?????? ??????? 2.0 ???? ?????? ??????? ?????? ??????? ?????? ???????.

??? ?????? ??????? ??? ????? ??????? ????? ???? ?? ???????? ????? ?????? ??????? ?????? ?? ????? ??????????? ???????? ??????? ???? ??????? ????? ?????????? ??????? BJ? ?? ??????? ????? ??????? ????? ????? ????????? ??????? BJ? ?????? ???? ????? ?? ??????? ???????. ?????????? ???? ?????? ?????? ??? ??? ????? ?????? ??? ????????? BJ ???????? ???? ???????? ???? ?? ????? MIM (??? ??? ???????) ??????? ??????? ??????? ?????? ??????? ??????? ????????? ?????. ??? ?? ??? ???????? ????? ????????? ??? ??????? BJ ???????? ??????? ????? ?? ??????? ???????. ?? ??????? ?? ??? ???? ?? ??? 1994? ??? ??????? ???? ??????? ???? ???? ???? ???????? ?????? ??????? ????????????? ???????? (??? ???? ????? ????? SANDI ???????????? ????? ????? ???? ??? ???? "????? ????????")? ???? "??? ????" ????? "??? ??? 2018? ?? ???? ???????? ?????????? ????? ?? ??? ????????? ?? ???? ??? ?? ??? ????????? ????????? ??????? ????? ????? ????????? ???? ???? Longyuan Forming ?? ????? ?????? ????? ?? ????? BJ ?5 ????? ?? ?????? ??????? ???? ???? ??????? ??? ???? ?? 20 ????? ?? ??????? ???????? ??? ????? ?? ?????? ??????? ???? ???? ??????? ??? ???? ?? 20 ????? ?? ??????? ?????? ?? ?????? ??????? ???? ???? ??????? ??? ???? ?? 20 ????? ?? ??????. ?? 5 ????? ?? ?????? ???????? ?????? ?? ?????.

???????? ??? ???? ???????? ??????? ????? ?????? ?????? ?????? ???????????? ?????? ??????? ????? ??? ?? ??? ????????? ????? ????? ????????? ????? ?? ???? ?? 30 ????? ?? ????? ????? ??????? ???????? ????? ???? Longyuan Forming ???? ????? ????? ?? ???????? ???????? ???????? ???????? ??????? ????????? ?????? ?????????? ??? ?????? ???????? ?????? ????? ????? R- ????? R&D ?????? P- ????? ??????? ?? ??????? ?????? ?????? ?????? ???????? ??? ?????? ??????? ??? ?????? ???????? ??? ???????? ???????? ????? ??????? ???????? ???????? ??????? ??????? ??????? ???????? ??? ??????? ????? ???????? ??????? ???????? ??? ??? ???. ???????? ???????? ???????? ???????? ??????? ???????? ???????? ??? ???????? ????? ????????? ??????? ????????? ?????? ?? ?????? ????? ?????? ????????.

????? ????? ????? ????? ???????? R ?? ????? AFS-J120R ? AFS-J380R ?? ????? ?? ??? ????? ???????? ???????? ?????? ????? ?????? ??????? ????? ???????? ?? ???????? ??? ??? ???. ???? ?? ???? ??? ??????? ?? ??????? ???? ??? ????? ± 0.2 ??? ???? 400 ~ 800DPI? ????? ????? 2.5 ???/???? ?????? ????? ????? 55 ~ 62%. ??????? ???? ?????? ???????? ?? ??????? ??? ????? ??????? ?????? ??????? ????? ????? ?????? ???????? ????? ???? ?????? ????? ?????? ???????? ????????. ???????? ??? ?????? ?????? ??????? ?????? ?????? ??????? ?????? ????????? ??? ?????? ??????? ?????? ?????? ?????? ??????? ???? ?????? ??? ???? ??????? ??? ?? ?????? ????? ?? ??????? ?????? ????? ???? ?????? ????? ?????????? ???????? ?????? ?????? ?????? ???????.

????? ??????? P ?? ????? ????? ??????? ??????? ?????????? ???????? ????????. ????? ??? ??????? ?? ??????? ???? ???? ????? ????????? ??????? ???????? ?????? ????? ????? ??????? ?????? V+? ????? ??? ??????? ?????? ???? ??????? ????? ?????????? ???????? ???????? ??????? ????? ????? ?????? ?????? ?????? ?? ???????? ???????? ????? ???????? ?????????? ????? ????? ??????? ?????? ??????? ??? ???? ????? ??????? ???? ????. ???? ?? ???? ??? ????? ??? ??? ± 0.15 ??? ???? 400 ~ 1200 ???? ?? ?????? (????? ??????? ?????)? ????? ????? ??? ??? 2.5 ???/???? ?????? ????? ????? ?????? ??? 55 ~ 62%. ?? ????? ????? ??????? ???????? AFS-J380L ????? ?????? ??? ??????? ??????? ????? ?????? ????? ?????? ????? ??? ???? ???????? ???? ????????? ???????? ??? ???? ??? ?????? ????????? ???? ??? ????? ??? ??? ± 0.1 ??? ????? ???? ????? ??? ??? 3.6 ??? / ????? ????????? ?????? ??? ????? ??? ??? ??????? ??????? ??????.

???????? ??? ???? ????? ???? ???????? ??????? ??????? ??? ????? ??????? ?????? ??????? ???? ?????? ????? ???? ?? ???? ???????? ??????? ?? ?????? ??????? ??????? ?????? ?????????? ???????. ????????? ??? ???????? ???? ?????? ?? ????? ????? ?? ??????? ?????? ??????? ?????? ? BJ? ????? ????? ???? ?? 20 ????? ?? ?????? ????????? ??? ??????? ??????? ??? ?????? ???????? ???????? ??????? ??????? ?????? ?????????? ??? ??? ???. ?? ?????? ????? ????? ?????? ???????? ????? SS316L ? SS420 ?18Ni300 ??????? ?? ?????? ?????? ???? ???? ?????? ?????? ??????? ?????? ??????? ??????. ???????? ??? ???? ????? ?????? ???? ???? ???? ????? ?? ???? ????? ??????? ????? ????? ????????? ????? ????????? ??????? ?? ???? ??????? ?????? ???? ??? ??????? ??????? ???????.

????? ????????? ??????? BJ ?????????? "???????? 2.0" ???? ??????? ??????? ?? ???????? ?????? ?????? ????????? ???????? ??????? ?? ??? ???????? ???? ???? ??? ?????? ??????? ???????? ??? ??? ???? ?????? ??????? ?????? ????? ?????? ?? ????? ????????? ????????? ?????????????? ????????? ????????? ?????? ?????? ???????? ??????? ???????? ????????? ?????? ?? ????????. ????? ????? ??? ?????? ??? ????? ????????? ????? ?? 100 ????? ????. ?? ????? ????? ?????? ????? ??????? ????????? ??? ????? ?????? ????????? BJ ???????? ???? ???????? ?? ??????? ??????????? ???????? ?? ???? ????? ??????? ???????? ?? ????? ??????? ???????? ??????? ???? ????? ????. ?????? ?? ??? ??????????? ????? ?? ???????? ???? ???? ??? ??????? ????????? ?????????? ?????? ??? ????? ?? ????? ????? ??????? ???????.