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1. (WO2019030522) LASER PROCESSING
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Pub. No.: WO/2019/030522 International Application No.: PCT/GB2018/052258
Publication Date: 14.02.2019 International Filing Date: 08.08.2018
IPC:
B23K 26/08 (2014.01) ,B22F 3/105 (2006.01) ,B33Y 10/00 (2015.01) ,B33Y 30/00 (2015.01) ,B23K 26/342 (2014.01) ,B29C 64/153 (2017.01) ,B23K 26/073 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
K
SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26
Working by laser beam, e.g. welding, cutting, boring
08
Devices involving relative movement between laser beam and workpiece
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
F
WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
3
Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
10
Sintering only
105
by using electric current, laser radiation or plasma
[IPC code unknown for B33Y 10][IPC code unknown for B33Y 30][IPC code unknown for B23K 26/342][IPC code unknown for B29C 64/153]
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
K
SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26
Working by laser beam, e.g. welding, cutting, boring
02
Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
06
Shaping the laser beam, e.g. by masks or multi-focusing
073
Shaping the laser spot
Applicants:
RENISHAW PLC [GB/GB]; New Mills Wotton-under-Edge Gloucestershire GL12 8JR, GB
Inventors:
THOMSON, Ian, James; GB
Agent:
MATTHEWS, Paul; GB
DUNN, Paul; GB
ROLFE, Edward; GB
BREWER, Michael; GB
Priority Data:
1712739.009.08.2017GB
Title (EN) LASER PROCESSING
(FR) TRAITEMENT AU LASER
Abstract:
(EN) This invention concerns a method of laser processing comprising generating a laser beam (118) having, at different longitudinal positions in a propagation direction, first and second transverse beam profiles of energy density. The first transverse beam profile is different to the second transverse beam profile and is non-Gaussian. The method comprises carrying out a scan of the laser beam (118) across a working surface (104a), wherein, during the scan, the laser beam (118) and/or working surface (104a) is adjusted such that, for a first part of the scan, the first transverse beam profile is located at the working surface (104a) and, for a second part of the scan, the second transverse beam profile is located at the working surface (104a).
(FR) La présente invention concerne un procédé de traitement au laser consistant à générer un faisceau laser (118) ayant, à différents emplacements longitudinaux dans une direction de propagation, des premier et second profils de faisceau transversal de densité d'énergie. Le premier profil de faisceau transversal est différent du second profil de faisceau transversal et est non gaussien. Le procédé consiste à effectuer un balayage du faisceau laser (118) sur une surface de travail (104a). Au cours du balayage, le faisceau laser (118) et/ou la surface de travail (104a) sont réglés de telle sorte que, pour une première partie du balayage, le premier profil de faisceau transversal est situé au niveau de la surface de travail (104a) et, pour une seconde partie du balayage, le second profil de faisceau transversal est situé au niveau de la surface de travail (104a).
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)