Patent SG-11201906296P-A (SG)
Title: Method of repairing a blisk
Inventor: BEZANSON KEITH
IPC: F01D5/00
Filed: 2017-12-09
Abstract: WO 18/ 14413 4 Al 200 REMOVE DAMAGED PORTION OF BLADE 206 PREPARE AND CLEAN AREA OF BLADE FOR WELDING < -208 SET-UP RAW REPLACEMENT PIECE AND BLADE FOR WELDING WELD 'YE' < 212 INSPECT WELDED AREA AFTER WELD < -214 PROVIDE LOCALIZED HEAT TREATMENT TO WELDED AREA 216 'REMOVE ALPHA CASE' < -218 MORPH EXISTING SHAPE OF BLADE WITH DESIGN SHAPE ,-220 USE ADAPTIVE MACHINING TO FINALIZE NEW BLADE ,-222 'INSPECT FINAL REPAIRED BLADE' ,-224 'APPLY PEENING PROCESS' < -226 FINISH THE NEW BLADE SURFACE 208b IDENTIFY AREA FOR ,,202 REPAIR ON THE BLADE ,--204 208a < -208c 218a DETERMINE THREE DIMENSIONS OF THE SURFACE OF THE BLADE FIG. 1 1 PROBE THE BLADE TO DETERMINE A COMPUTER GENERATED REPLACEMENT PIECE MORPH THE COMPUTER GENERATED REPLACEMENT PIECE WITH A REMAINING PORTION OF THE BLADE DETERMINE WHETHER THE COMPUTER GENERATED REPLACEMENT PIECE IS CONTAINED WITHIN A RAW REPLACEMENT PIECE 1 < - 208d MACHINE A RAW REPLACEMENT PIECE FOR WELDING ( -218b EXTRAPOLATE A 3-D CONTOUR FROM THE COMPUTER GENERATED REPLACEMENT PIECE AND THE SURFACE (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 09 August 2018 (09.08.2018) WIPO I PCT omit VIII °nolo Homo IH 01110111 III' 111111 oimIE (10) International Publication Number WO 2018/144134 Al (51) International Patent Classification: FOlD 5/00 (2006.01) FOlD 25/28 (2006.01) (21) International Application Number: PCT/US2017/065480 (22) International Filing Date: 09 December 2017 (09.12.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 15/420,132 31 January 2017 (31.01.2017) US (71) Applicant: GENERAL ELECTRIC COMPANY [US/US]; 1 River Road, Schenectady, NY 12345 (US). (72) Inventors: BEZANSON, Keith, Edward; 1 River Road, Schenecatdy, NY 12345 (US). MORGAN, William, E.; 1 River Road, Evendale, NY 12345 (US). GEBERT, Er- ic; 1 River Road, Evendale, NY 12345 (US). CHMURA, Drew, Michael; 1 River Road, Evendale, NY 12345 (US). WALTERS, Donna, Tylicki; 1 River Road, Evendale, NY 12345 (US). VERIGOOD, Stanford; 1 River Road, Even- dale, NY 12345 (US). VAZE, Suhas, Prabhakar; 1 Riv- er Road, Evendale, NY 12345 (US). TRAPP, Timothy, J.; 1 River Road, Schenectady, NY 12345 (US). BUCK- LEY, Donovan, O.; 1 River Road, Schenectady, NY 12345 (US). WAGNER, Hans, R.; 1 River Road, Schenectady, NY 12345 (US). CHURCH, Brian, David; 1 River Road, Schenectady, NY 12345 (US). TREWILER, Gary, Ed- ward; 1 River Road, Schenectady, NY 12345 (US). FIRES- TONE, Gregory, Christopher; 1 River Road, Schenec- tady, NY 12345 (US). HAHN, James, A.; 1 River Road, Schenectady, NY 12345 (US). ROOT, Jeffrey, James; 1 River Road, Schenectady, NY 12345 (US). SHIRA, Seth, Carl; 1 River Road, Schenectady, NY 12345 (US). (74) Agent: ANDES, William, Scott et al.; General Electric Company, Global Patent Operation, 901 Main Avenue, 3rd Floor, Norwalk, CT 06851 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): 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. (54) Title: METHOD OF REPAIRING A BLISK (57) : A method of repairing a blisk having a hub with circumferen- tially spaced blades. The method can include removing a portion of a blade and replacing the portion with a replacement piece. The method can further include welding the replacement portion to the blade. The method can further include at least one of inspecting the weld after the completion of the weld and prior to heat treatment, dimensionally inspecting the replacement piece after machining, peening the blade, and surface finishing the replacement piece. [Continued on next page] WO 2018/144134 Al MIDEDIMOMOIDEIREEMOMMHOHEMIOMMEHOIMI (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)) as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) Published: — with international search report (Art. 21(3))