公开(公告)号：EP3330035A1

公开(公告)日：2018-06-06

申请号：EP17203838.2

申请日：2017-11-27

申请人： United Technologies Corporation

发明人： LIN, Wangen ,  BOYNTON, Scott Lewis ,  BROWN, Alex Neese

IPC分类号： B23K26/03 ,  B23K26/14 ,  B23K26/16 ,  B23K26/342 ,  B23K26/144 ,  B23K26/142 ,  B23K26/082

CPC分类号： B23K26/342 ,  B23K26/032 ,  B23K26/142 ,  B23K26/144 ,  B23K26/1476 ,  B23K26/1488 ,  B23K26/16

摘要： A laser cladding system (10) comprises a cladding head (12) and a gas system (50). The cladding head (12) extends along a primary axis (A P ), and comprises a mirror (30) and a powder nozzle (34) both situated at a distal end (22) of the head (40). The powder nozzle (34) directs weld material at a target point (P T ), and the mirror (30) directs a beam (28) of collimated light at the target point (P T ). The gas system (50) comprises a high-speed gas nozzle (304) and a gas knife (310). The high-speed gas nozzle (304) produces a gas sheath (302) coaxial with the beam (28) in a region between the mirror (30) and target point (P T ), shielding the mirror (30) from debris and backspatter. The gas knife (310) redirects the gas sheath (302) away from the target point (P T ) and redirects debris and molten backspatter away from an interior of the laser cladding head (12).

公开(公告)号：EP3330038A1

公开(公告)日：2018-06-06

申请号：EP17203892.9

申请日：2017-11-27

申请人： United Technologies Corporation

发明人： LIN, Wangen ,  BOYNTON, Scott Lewis ,  BROWN, Alex Neese

IPC分类号： B23K26/14 ,  B23K26/16 ,  B23K26/342 ,  B23K26/144 ,  B23K26/142 ,  B23K26/082

CPC分类号： B23K26/342 ,  B23K26/032 ,  B23K26/082 ,  B23K26/142 ,  B23K26/144 ,  B23K26/1476 ,  B23K26/1488 ,  B23K26/16

摘要： A laser cladding head (12) comprises a protective housing (18), a focal array (26), a turning mirror (36), and a powder nozzle (34). The housing (18) extends along a primary axis (A P ) from a proximal end (20) to a distal end (22). The focal array (26) is situated at the proximal end (20) and oriented to receive and focus collimated light (28) in a beam (28) directed substantially along the primary axis (Ap). The turning mirror (30) is situated at the distal end (22) and disposed to redirect the beam (28) in an emission direction, towards a target point (P T ) separated from the turning mirror (30) by a working distance (D T ) of at most a tenth the focal length. The turning mirror (30) is a nonfocal reflective surface indexable to alter an impingement location (P I ) of the beam (28) on the turning mirror (30). The powder nozzle (34) is situated at the distal end (22) and receives and directs weld material towards the target point (P T ) for melting.