RESISTANCE WELDING OF UNWELDABLE METALS WITH THERMAL SPRAYED INTERLAYERS

摘要

WO 18/ 15 37 85 Al FIG. 3 ,554a6:651*, 4,,666.66.66a Ara* (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 30 August 2018 (30.08.2018) WIPO I PCT omit VIII °nolo olio111 iflo oimIE (10) International Publication Number WO 2018/153785 Al (51) International Patent Classification: B23K 9/23 (2006.01) B23K 11/06 (2006.01) B23K 11/10 (2006.01) B23K 11/16 (2006.01) B23K 11/20 (2006.01) B23K 11/14 (2006.01) B23K 26/323 (2014.01) B23K 103/20 (2006.01) (21) International Application Number: PCT/EP2018/053892 (22) International Filing Date: 16 February 2018 (16.02.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 17157773.7 24 February 2017 (24.02.2017) EP (71) Applicant: OUTOKUMPU OYJ [MI]; Salmisaarenran- ta 11, 00180 HELSINKI (FI). (72) Inventors: DOMKES, Christian; Ritterstrasse 170, 47805 KREFELD (DE). HUNDGEN, Thomas; Lise-Meit- ner-Strasse 12, 41363 JUECHEN (DE). LINDNER, Ste- fan; Mittelstrasse 120, 47877 WILLICH (DE). (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. (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)) (54) Title: RESISTANCE WELDING OF UNWELDABLE METALS WITH THERMAL SPRAYED INTERLAYERS (57) : The invention relates to a method for joining of at least two materials, non-weldable directly to each other with 2 thermal joining processes in a lap joint configuration, where a two step sequence is used consisting of a first step to apply a ther- momechanical or mechanical surface protection layer on the sur- face of a (stainless) steel substrate (1) and a second step where, a thermal joining process is used to weld the sprayed layer (2) with an applied aluminum sheet (3) without having brittle inter- metallic phases in the whole material configuration.