Patent SG-11201901298V-A (SG)
Title: Systems and methods for z-height measurement and adjustment in additive manufacturing
Inventor: HUANG WEI
IPC: B33Y30/00
Filed: 2017-09-15
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 111111H1110111111111111111101111101011111111111111111011111111110111111111110111111 Organization International Bureau (10) International Publication Number (43) International Publication Date ......0\" WO 2018/053299 Al 22 March 2018 (22.03.2018) WIP0 I PCT (51) International Patent Classification: Michael; 6 Ridgewood Court, New Kensington, Pennsyl- B22F 3/105 (2006.01) B33Y 30/00 (2015.01) vania 15068 (US). B33Y 10/00 (2015.01) (74) Agent: KAPADIA, Smit; Greenberg Traurig, LLP, 500 (21) International Application Number: Campus Drive, Suite 400, Florham Park, New Jersey 07932 PCT/US2017/051829 (US). (22) International Filing Date: (81) Designated States (unless otherwise indicated, for every 15 September 2017 (15.09.2017) kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, (25) Filing Language: English CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, (26) Publication Language: English DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, (30) Priority Data: HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, 62/395,032 15 September 2016 (15.09.2016) US 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, (71) Applicant: ARCONIC INC. [US/US]; 201 Isabella Street, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, Pittsburgh, Pennsylvania 15212-5858 (US). 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. (72) Inventors: HUANG, Wei; 661 Deauville Drive, Apartment 11, Monroeville, Pennsylvania 15146 (US). GLOBIG, (54) Title: SYSTEMS AND METHODS FOR Z-HEIGHT MEASUREMENT AND ADJUSTMENT IN ADDITIVE MANUFAC- = TURING = = = 12 16 —\ m = = Controller t - Energy 1 4 / 20 42 (2) Source Fixture e . ) F e ti me = = = = = = Deposition 26 Material __ / --18 30 = Part Being Built = Substrate H28 1-1 FIG. 1 CN CN N ( (57) : In some embodiments of the instant disclosure, a method is provided comprising: additively manufacturing a part via a M material deposition-based additive manufacturing technique; concomitant with additively manufacturing the part, measuring a z-height 0 ItI n of the deposition via a non-linear mathematical model to determine a measured z-height, wherein the measured z-height is a distance ---- between an additive manufacturing system energy source and a top surface of a molten pool; comparing the measured z-height with GC a target z-height to identify a difference between the measured z-height and the target z-height; adjusting a motion controller to set 1-1 © a corrected z-height, as the target z-height and the measured z-height; and depositing an additive manufacturing feed material based N on the corrected z-height. C [Continued on next page] WO 2018/053299 Al MIDEDIMOMOIDEIREIDIONIMEMOIDIRCHINEM# (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). Published: — with international search report (Art. 21(3))