Method to join or repair superalloy hot section turbine...

Metal fusion bonding – Process – Diffusion type

Reexamination Certificate

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C228S128000, C228S119000

Reexamination Certificate

active

07484651

ABSTRACT:
Accordingly, the present invention provides a method for joining metallic members, which can be used to join component sub-assemblies. Further, the present invention provides a method for repairing a component by replacing a damaged portion and re-inserting a replacement section. In general, the present invention provides in one embodiment a method for joining metallic members comprising: preparing a surface of a first metallic member, thereby providing an oxide-free surface; preparing a surface of a second metallic member, thereby providing an oxide-free surface; applying pressure to the first and second metallic members, thereby forcing the surface of the first metallic member and the surface of the second metallic member together and forming a joint area; sealing an outer edge of the joint area; and subjecting the members to a hot isostatic process operation.

REFERENCES:
patent: 1554546 (1925-09-01), Austin
patent: 2681970 (1954-06-01), Koopman
patent: 2870323 (1959-01-01), Roper et al.
patent: 2914847 (1959-12-01), Storchheim
patent: 2932723 (1960-04-01), Sibley et al.
patent: 2938107 (1960-05-01), Pease
patent: 3185814 (1965-05-01), Rösser et al.
patent: 3215809 (1965-11-01), Morimoto et al.
patent: 3223818 (1965-12-01), Chyle
patent: 3268248 (1966-08-01), Chambers
patent: 3274371 (1966-09-01), Manz et al.
patent: 3293400 (1966-12-01), Brogdon
patent: 3420979 (1969-01-01), Gowan
patent: 3546415 (1970-12-01), Marantz
patent: 3549856 (1970-12-01), Saenger et al.
patent: 3624345 (1971-11-01), Armstrong
patent: 3745322 (1973-07-01), Ito et al.
patent: 3746833 (1973-07-01), Ujie
patent: 3936654 (1976-02-01), Cannata
patent: 3936655 (1976-02-01), Arnoldy
patent: 3957194 (1976-05-01), Woodward
patent: 3978907 (1976-09-01), Rabinovich et al.
patent: 3984652 (1976-10-01), Graville
patent: 4008844 (1977-02-01), Duvall et al.
patent: 4020314 (1977-04-01), Barger
patent: 4027135 (1977-05-01), Barger
patent: 4091253 (1978-05-01), Bagshaw et al.
patent: 4143257 (1979-03-01), Herrmann
patent: 4149060 (1979-04-01), Barger
patent: 4183351 (1980-01-01), Hinotani et al.
patent: 4214141 (1980-07-01), Okuda et al.
patent: 4224360 (1980-09-01), Ohnishi et al.
patent: 4266110 (1981-05-01), Barger
patent: 4307281 (1981-12-01), Ivannikov et al.
patent: 4400608 (1983-08-01), Wagatsuma et al.
patent: 4442340 (1984-04-01), Kawabata et al.
patent: 4484959 (1984-11-01), Boucher et al.
patent: 4518625 (1985-05-01), Westfall
patent: 4521664 (1985-06-01), Miller
patent: 4572936 (1986-02-01), Scholz et al.
patent: 4584457 (1986-04-01), Dilthey et al.
patent: 4587700 (1986-05-01), Curbishley et al.
patent: 4603801 (1986-08-01), Wan et al.
patent: 4611744 (1986-09-01), Fraser et al.
patent: 4702406 (1987-10-01), Sullivan et al.
patent: 4703885 (1987-11-01), Lindgren et al.
patent: 4750944 (1988-06-01), Snyder et al.
patent: 4780594 (1988-10-01), Rothermel
patent: 4782206 (1988-11-01), Ayres et al.
patent: 4788412 (1988-11-01), Hori et al.
patent: 4804815 (1989-02-01), Everett
patent: 4811892 (1989-03-01), Kunzmann et al.
patent: 4814026 (1989-03-01), Schlosser
patent: 4817858 (1989-04-01), Verpoort
patent: 4835357 (1989-05-01), Schalk
patent: 4878953 (1989-11-01), Saltzman et al.
patent: 4902873 (1990-02-01), Ivannikov
patent: 5067649 (1991-11-01), Hardwick
patent: 5071054 (1991-12-01), Dzugan et al.
patent: 5106010 (1992-04-01), Stueber et al.
patent: 5124527 (1992-06-01), Takano et al.
patent: 5140140 (1992-08-01), Pollack
patent: 5146064 (1992-09-01), Poirier
patent: 5149939 (1992-09-01), Imaizumi et al.
patent: 5156321 (1992-10-01), Liburdi et al.
patent: 5214265 (1993-05-01), Pollack
patent: 5215243 (1993-06-01), Findlan
patent: 5217158 (1993-06-01), Spiegelberg et al.
patent: 5233149 (1993-08-01), Killian et al.
patent: 5280849 (1994-01-01), Galanes
patent: 5348212 (1994-09-01), Galanes
patent: 5374319 (1994-12-01), Stueber et al.
patent: 5383985 (1995-01-01), Coulon
patent: 5470524 (1995-11-01), Krueger et al.
patent: 5479704 (1996-01-01), Richter et al.
patent: 5556561 (1996-09-01), Ishikawa et al.
patent: 5593085 (1997-01-01), Tohill et al.
patent: 5714735 (1998-02-01), Offer
patent: 5723078 (1998-03-01), Nagaraj et al.
patent: 5732467 (1998-03-01), White et al.
patent: 5735044 (1998-04-01), Ferrigno et al.
patent: 5755374 (1998-05-01), Prigmore
patent: 5762727 (1998-06-01), Crawmer et al.
patent: 5783318 (1998-07-01), Biondo et al.
patent: 5806751 (1998-09-01), Schaefer et al.
patent: 5822852 (1998-10-01), Bewlay et al.
patent: 5846057 (1998-12-01), Ferrigno et al.
patent: 5897801 (1999-04-01), Smashey et al.
patent: 5951792 (1999-09-01), Balbach et al.
patent: 5956845 (1999-09-01), Arnold
patent: 5994659 (1999-11-01), Offer
patent: 6023043 (2000-02-01), Manabe et al.
patent: 6040545 (2000-03-01), Taki et al.
patent: 6049978 (2000-04-01), Arnold
patent: 6069334 (2000-05-01), Capitanescu
patent: 6109505 (2000-08-01), Malie et al.
patent: 6117564 (2000-09-01), Crawmer et al.
patent: 6153854 (2000-11-01), Haszler et al.
patent: 6193145 (2001-02-01), Fournier et al.
patent: 6247638 (2001-06-01), Ress
patent: 6364971 (2002-04-01), Peterson, Jr. et al.
patent: 6428633 (2002-08-01), Kasuya et al.
patent: 6464129 (2002-10-01), Stueber et al.
patent: 6579431 (2003-06-01), Bolcavage et al.
patent: 6673169 (2004-01-01), Peterson, Jr. et al.
patent: 6884959 (2005-04-01), Gandy et al.
patent: 7060366 (2006-06-01), Gupta et al.
patent: 2005/0126664 (2005-06-01), Peterson, Jr. et al.
patent: 19917071 (2000-10-01), None
patent: 56009093 (1981-01-01), None
U.S. Appl. No. 10/972,249, filed Oct. 22, 2004, Coleman et al.
U.S. Appl. No. 10/839,863, filed May 5, 2004, Coleman et al.
U.S. Appl. No. 11/060,937, filed Feb. 18, 2005, Peterson, Jr. et al.
ASM Handbook, vol. 7, Powder Metal Technologies and Applications, p. 605, ASM International, 1998.
Chapter 6: Submerged Arc Welding, pp. 192-203.
Chapter 8: Electroslag Welding, pp. 272-283.
Gandy, et al., “Overview of Hot Section Component Repair Methods,”ASM Materials Solutions Conference&Exposition, Energy&Utilities Program, St. Louis, MO, Oct. 9-11, 2000.
Gandy, et al., “Laser Weld Repair of IN738 and GTD111 Buckets”Proceeding of ASME Turbo Expo 2002, Jun. 3-6, 2002, Amsterdam, The Netherlands.
Gandy, D.W., Frederick, G., Viswanathan, R., and Stover, J.D., “Recent EPRI Research & Development Activities in the Weld Repair of Nickel-Based Gas Turbine Blade Superalloys,”EPRI Welding&Repair Technology for Power Plants, 3rd International Conference Proceedings, Jun. 9-12, 1998.
Gandy, D.W., Viswanathan, R., and Stover, J.D., “Status of Weld Repair Technology for Nickel-Based Superalloy Gas Turbine Blading,”EPRI Final Report, Apr. 1998.
Hanes, H.D., Seifert, D.A., and Watts, C.R., “Hot Isostatic Processing,”Metals and Ceramics Information Center, Battelle's Columbus Laboratories, pp. 1-2, 31-32, 46-48, and 58, 1979.
Rinaldi, C. et al., “Automatic Refurbishment of Gas Turbine Components by CO2 Robo-Laser,”Proceedings from Materials Solutions '97 on Joining and Repair of Gas Turbine Components, pp. 109-117, Sep. 15-18, 1997.
Simkovich, G. and Whitney, E., “Improved Nickel Based Superalloy With Excellent Oxidation Resistance and Weldability,”The Pennsylvania State University, Jul. 17, 1997.
Viswanathan, R. and Scheibel, J., “Assessment of the Laser Welding Process for Superalloy Gas Turbine Blade Welding,”EPRI Repair and Replacement Applications Center, Final Report, Oct. 1999.
Williams, A.D., “A Case Study of Laser Powder Feed Welding Under Engine Operating Conditions,”EPRI Welding&Repair Technology for Power Plants,3rdInternational Conference Proceedings, Jun. 9-12, 1998.

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