Electric heating – Inductive heating – With heat exchange
Patent
1996-08-14
1997-11-04
Hoang, Tu B.
Electric heating
Inductive heating
With heat exchange
219618, 228157, H05B 610
Patent
active
056836074
ABSTRACT:
Capitalizing on the unique feature of our induction heating workcell that permits rapid and controlled heating and cooling of a workpiece within a wide temperature range permits combining several manufacturing operations into a single heating cycle to save time, energy, capital, touch labor, and factory space. For example, we can combine superplastic forming (SPF) with brazing, two operations that occur at temperatures that differ by about 150-200.degree. F. (85-105-C.) or more, to produce quality parts. Or, we can combine SPF with .beta.-annealing; of titanium. Finally, we can combine forming, brazing, and annealing into an economical single cycle. Illustrating our combined cycles, we produce multisheet SPF parts with braze joints at selected locations with improved energy efficiency and at lower cost by heating the multisheet pack to its superplastic forming range below the melting point of the braze alloy, superplastically forming the pack to define braze joints having unmelted braze alloy; increasing the temperature to the braze temperature of the braze alloy, and cooling the pack below the superplastic range to freeze the braze alloy in the braze joint.
REFERENCES:
patent: 2984732 (1961-05-01), Herbert
patent: 3110961 (1963-11-01), Melill et al.
patent: 3340101 (1967-09-01), Fields, Jr. et al.
patent: 3444275 (1969-05-01), Willett
patent: 3466726 (1969-09-01), Savolainen
patent: 3529458 (1970-09-01), Butler et al.
patent: 3547751 (1970-12-01), Morgan
patent: 3595060 (1971-07-01), Hundy
patent: 3605477 (1971-09-01), Carlson
patent: 3661491 (1972-05-01), Troyer
patent: 3705284 (1972-12-01), Binard
patent: 3890819 (1975-06-01), DeLuca
patent: 3895436 (1975-07-01), Summers et al.
patent: 3920175 (1975-11-01), Hamilton et al.
patent: 3924793 (1975-12-01), Summers et al.
patent: 3927817 (1975-12-01), Hamilton et al.
patent: 3934441 (1976-01-01), Hamilton et al.
patent: 3974673 (1976-08-01), Fosness et al.
patent: 3996019 (1976-12-01), Cogan
patent: 4060364 (1977-11-01), Gras
patent: 4111024 (1978-09-01), Dahlman et al.
patent: 4117970 (1978-10-01), Hamilton et al.
patent: 4141484 (1979-02-01), Hamilton et al.
patent: 4145903 (1979-03-01), Leach et al.
patent: 4150927 (1979-04-01), Steingroever
patent: 4188811 (1980-02-01), Brimm
patent: 4217397 (1980-08-01), Hayase et al.
patent: 4233829 (1980-11-01), Hamilton et al.
patent: 4233831 (1980-11-01), Hamilton et al.
patent: 4263375 (1981-04-01), Elrod
patent: 4269053 (1981-05-01), Agrawal et al.
patent: 4292375 (1981-09-01), Ko
patent: 4304821 (1981-12-01), Hayase et al.
patent: 4306436 (1981-12-01), Schulz et al.
patent: 4331284 (1982-05-01), Schulz et al.
patent: 4351470 (1982-09-01), Swadling et al.
patent: 4354369 (1982-10-01), Hamilton
patent: 4361262 (1982-11-01), Israeli
patent: 4426032 (1984-01-01), Leodolter
patent: 4474044 (1984-10-01), Leistner et al.
patent: 4524037 (1985-06-01), Marc
patent: 4530197 (1985-07-01), Rainville
patent: 4544339 (1985-10-01), Itoh
patent: 4555373 (1985-11-01), Bloemkolk et al.
patent: 4563145 (1986-01-01), de Meij
patent: 4584860 (1986-04-01), Leonard
patent: 4603089 (1986-07-01), Bampton
patent: 4603808 (1986-08-01), Stacher
patent: 4622445 (1986-11-01), Matsen
patent: 4635461 (1987-01-01), Raymond
patent: 4649249 (1987-03-01), Odor
patent: 4657717 (1987-04-01), Cattanach et al.
patent: 4706361 (1987-11-01), Meyer et al.
patent: 4713953 (1987-12-01), Yavari
patent: 4716072 (1987-12-01), Kim
patent: 4824617 (1989-04-01), Takeuchi et al.
patent: 4833768 (1989-05-01), Ecklund et al.
patent: 4852280 (1989-08-01), Ghosh
patent: 4855011 (1989-08-01), Legge et al.
patent: 4882823 (1989-11-01), Weisert et al.
patent: 4888973 (1989-12-01), Comley
patent: 4889276 (1989-12-01), Cadwell et al.
patent: 4901552 (1990-02-01), Ginty et al.
patent: 4906172 (1990-03-01), Stewart
patent: 4951491 (1990-08-01), Lorenz
patent: 4984348 (1991-01-01), Cadwell
patent: 4988037 (1991-01-01), Cadwell
patent: 5024369 (1991-06-01), Froes et al.
patent: 5032327 (1991-07-01), Becheret
patent: 5047605 (1991-09-01), Ogden
patent: 5064978 (1991-11-01), Scholz
patent: 5093545 (1992-03-01), McGaffigan
patent: 5115963 (1992-05-01), Yasui
patent: 5118026 (1992-06-01), Stacher
patent: 5139407 (1992-08-01), Kim et al.
patent: 5141146 (1992-08-01), Yasui
patent: 5229562 (1993-07-01), Burnett et al.
patent: 5289965 (1994-03-01), Yasui et al.
patent: 5410132 (1995-04-01), Gregg et al.
patent: 5420400 (1995-05-01), Matsen
Border et al., "Induction Heated Joining of Thermoplastic Composites Without Metal Susceptors," 34th International SAMPE Symposium, May 3-11, 1989, pp. 2569-2578.
Sumida, et al., "Pan Based High Modulus Graphitized Carbon Fiber Torayca M60J". 34th International SAMPE Symposium, May 8-11, 1989, pp. 2579-2589.
Quarterly Government Report for Sep. 1992 throught Nov.
Gillespie Franna S. P.
Matsen Marc R.
Hammar John C.
Hoang Tu B.
The Boeing Company
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