公开(公告)号：EP3241643A4

公开(公告)日：2018-08-01

申请号：EP16823143

申请日：2016-03-15

Applicant: TECH RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： OHNO HIROSHI ,  SASAKI MITSUO ,  MASUKAWA KAZUYUKI ,  SASAKI YUJI ,  TSUNO SATOSHI ,  OBARA TAKASHI

IPC: B23K26/00 ,  B22F3/105 ,  B22F3/16 ,  B23K26/21 ,  B23K26/34 ,  B29C67/00 ,  B33Y30/00

CPC classification number: B23K26/342 ,  B23K26/032 ,  B23K26/046 ,  B23K26/0643 ,  B23K26/0648 ,  B23K26/0673 ,  B23K26/144 ,  B23K26/1464 ,  B33Y30/00 ,  B33Y40/00

Abstract: An overall apparatus is downsized by reducing the size of a light beam branching structure. There is provided an optical processing head including an optical element group that guides a processing light beam from a light source to a process surface, and a light beam branching portion that branches reflected light of the processing light beam from the process surface and an observation light beam for observing a state of the process surface. The light beam branching portion is arranged on a light beam path of the processing light beam, and includes, between the optical element group and the process surface, a half mirror that guides the observation light beam to an observation optical system.

公开(公告)号：EP3189925A4

公开(公告)日：2018-07-25

申请号：EP15898474

申请日：2015-11-11

Applicant: TECH RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： OHNO HIROSHI ,  SASAKI MITSUO ,  SASAKI YUJI ,  TSUNO SATOSHI ,  OBARA GO ,  YAMADA TOMOHIKO ,  SHIOMI YASUTOMO ,  OBARA TAKASHI

IPC: B23K26/34 ,  B23K26/14 ,  B23K26/144 ,  B23K26/21 ,  B29C64/209

CPC classification number: B23K26/1476 ,  B05C11/1036 ,  B23K26/1435 ,  B23K26/1438 ,  B23K26/144 ,  B23K26/1462 ,  B23K26/342 ,  B29C64/209 ,  B33Y30/00 ,  B33Y40/00

Abstract: Ejection and stop of a powder flow are switched while maintaining a once generated steady flow without stopping it. A processing nozzle includes a supply source of a fluid containing a powder, a first channel through which the fluid supplied from the supply source passes, a second channel that supplies the fluid to an ejection port of the nozzle, a third channel that releases the fluid outside the nozzle, and a switch that causes the first channel and the second channel to communicate with each other when supplying the fluid to the ejection port, and causes the first channel and the third channel to communicate with each other when not supplying the fluid to the ejection port.

公开(公告)号：EP3248726A4

公开(公告)日：2018-05-02

申请号：EP16823141

申请日：2016-03-15

Applicant: TECH RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： OHNO HIROSHI ,  SASAKI YUJI ,  TSUNO SATOSHI ,  OKADA NAOTADA ,  SASAKI MITSUO

IPC: B23K26/08 ,  B22F3/105 ,  B22F3/16 ,  B23K26/06 ,  B23K26/067 ,  B23K26/21 ,  B23K26/34 ,  B23K26/342 ,  B29C67/00 ,  B33Y30/00

CPC classification number: B23K26/0876 ,  B22F3/105 ,  B22F3/16 ,  B23K26/0643 ,  B23K26/0673 ,  B23K26/342 ,  B29C67/00 ,  B33Y30/00

Abstract: The mobility of an optical processing apparatus is improved. There is provided an optical processing apparatus for scanning a processing region having an at least one-dimensional spread by moving a nozzle head while irradiating the processing region with an optical processing light beam via the nozzle head, including a light source that emits, to air, the optical processing light beam toward the nozzle head, a nozzle head that includes a hollow nozzle in a vertical direction and a light beam direction changing optical system which receives the light beam emitted from the light source and propagated in the air, and changes a propagation direction of the received light beam to a direction of a currently processed processing point in the processing region, and a main scanning direction moving mechanism that moves the nozzle head by causing the nozzle head to scan in a main scanning direction of the processing region.