Patent SG-11201811327R-A (SG)
Title: A method of laser processing of a metallic material with control of the transverse power distribution of the laser beam in a working plane, and a machine and computer program for the implementation of said method
Inventor: SBETTI MAURIZIO
IPC: B23K26/14
Filed: 2017-07-06
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 111111101111 0 1110101011111 011101 0 011111111111111111111111111111111111111111 Organization International Bureau (10) International Publication Number (43) International Publication Date ......0\" WO 2018/007967 Al 11 January 2018 (11.01.2018) W I PO I PCT (51) International Patent Classification: (72) Inventor: SBETTI, Maurizio; Vicolo del Crocefisso 36, B23K 26/06 (2014.01) B23K 26/14 (2014.01) 38056 Levico Terme (Trento) (IT). B23K 26/073 (2006.01) G02B 26/08 (2006.01) (74) Agent: DEAMBROGI, Edgardo et al.; c/o Jacobacci & (21) International Application Number: Partners S.p.A., Corso Emilia 8, 10152 Torino (IT). PCT/IB2017/054067 (81) Designated States (unless otherwise indicated, for every (22) International Filing Date: kind of national protection available): AE, AG, AL, AM, 06 July 2017 (06.07.2017) AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, (25) Filing Language: Italian 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, (26) Publication Language: English HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, (30) Priority Data: KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, 102016000070352 06 July 2016 (06.07.2016) IT 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, (71) Applicant: ADIGE S.P.A. [IT/IT]; Via per Barco 11, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, 38056 Levico Terme (Trento) (IT). TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. _ (54) Title: A METHOD OF LASER PROCESSING OF A METALLIC MATERIAL WITH CONTROL OF THE TRANSVERSE POWER DISTRIBUTION OF THE LASER BEAM IN A WORKING PLANE, AND A MACHINE AND COMPUTER PROGRAM THE IMPLEMENTATION OF SAID METHOD = FOR = 10 12a = = = 12c = I \ = = 1 11 = 14 12b r . = = 18 = — 4-0 = _ WPI F G.1 = 18 11 \ WP IN (57) : A method of laser processing of a metallic material with control of the transverse power distribution of the laser beam C:N (B) IN in a working plane, and a machine and computer program for the implementation of said method A method of laser processing © of a metallic material is described, by means of a focused laser beam (B) having a predetermined transverse power distribution on at C O least one working plane of the metallic material, comprising the steps of: • - providing a laser beam emitting source; • - leading the Pt laser beam along a beam transport optical path to a working head arranged in proximity to the material; • - collimating the laser beam Il along an optical axis of propagation incident on the material; • - focusing the collimated laser beam in an area of a working plane of the 0 el material; and • - conducting said focused laser beam along a working path on the metallic material comprising a succession of working C [Continued on next page] WO 2018/007967 Al MIDEDIMOMOIDEIREEMONIMMEHMERVOIS (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (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), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: — as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(ii)) — of inventorship (Rule 4.17(iv)) Published: — with international search report (Art. 21(3)) — with amended claims (Art. 19(1)) areas, wherein the laser beam is shaped: • - by reflecting the collimated beam by means of a deformable controlled surface reflecting element having a plurality of independently movable reflection areas, and • - by controlling the arrangement of the reflection areas to establish a predetermined transverse power distribution of the beam on at least one working plane of the metallic material as a function of the area of the current working plane and/or of the current direction of the working path on the metallic material.