Metal fusion bonding – Process – Metal to nonmetal with separate metallic filler
Patent
1997-03-07
1999-01-05
Heinrich, Samuel M.
Metal fusion bonding
Process
Metal to nonmetal with separate metallic filler
2282485, B23K 119
Patent
active
058553142
ABSTRACT:
An abrasive grit for a metal bonded Single Layer abrasive tool includes abrasive grains coated with a first active component. The active component is mechanically-bound to the surface of the superabrasive grains. Preferably the abrasive is a superabrasive, especially diamond, and the first active component is titanium, either in the form of elemental Ti or TiH.sub.2. The novel grit is made by mixing the first active powder component in a liquid binder to form an adhesive paste; mixing the paste with the abrasive grains to wet the grains, and drying the mixture to adhere active component to the grains. The coated abrasive can be brazed onto a core to form a Single Layer tool, especially with a brazing composition that includes a bronze alloy and small concentrations of a second active component. During brazing the novel abrasive grains provide excellent surface contact with the brazing composition and the braze strongly bind the grains to the tool core. The brazed composition is easy to chemically or electrochemically strip from the cores of worn abrasive tools to permit reconstruction of the tools.
REFERENCES:
patent: 3178273 (1965-04-01), Libal
patent: 3596649 (1971-08-01), Olivieri
patent: 3779873 (1973-12-01), Dewar
patent: 3894673 (1975-07-01), Lowder et al.
patent: 3925035 (1975-12-01), Keat
patent: 4018576 (1977-04-01), Lowder
patent: 4334895 (1982-06-01), Keat
patent: 4618349 (1986-10-01), Hashimoto et al.
patent: 4685440 (1987-08-01), Owens
patent: 4749594 (1988-06-01), Malikowski et al.
patent: 4951427 (1990-08-01), St. Pierre
patent: 4968326 (1990-11-01), Wiand
patent: 5011511 (1991-04-01), Beck
patent: 5102621 (1992-04-01), Sara
patent: 5178643 (1993-01-01), Schimweg
patent: 5232469 (1993-08-01), McEachron et al.
patent: 5308367 (1994-05-01), Julien
patent: 5385591 (1995-01-01), Ramanath et al.
patent: 5453105 (1995-09-01), Middlemiss et al.
patent: 5492771 (1996-02-01), Lowder et al.
patent: 5505750 (1996-04-01), Andrews
R.B. Aronson, "CBN Grinding--a tempting technology", Manufacturing Engineering, Feb. 1994, p. 35.
J.A. Borkowski and A.M. Szymanski, "Uses of Abrasives and Abrasive Tools", Ellis Horwood Ltd., 1992.
M. M. Schwartz, "Brazing", ASM International, 1987.
G. Humpston and D.M. Jacobson, "Principles of Soldering and Brazing," ASM International, 1993.
M.M. Schwartz, "Ceramic Joining, " ASM International, 1989 pp. 99-111.
"ASM Handbook," vol. 6, ASM International, 1993, pp. 911-913.
R. W. K. Honeycombe, Steels-Microstructure and Properties, 1996 pp. 55-63.
J.F. Elliot and M. Gleiser, Thermochemistry for Steelmaking, vol. 1., 1960, Figure 7.
H.K. Lee and J.Y. Lee, "Decomposition and Interfacial Reaction in Brazing of SiC by Copper-Based Active Alloys," Journal of Materials Science Letters, 11, 1992, pp. 550-553.
J.Wilks and E. Wilks, "Properties and Applications of Diamond," Butterworth-Heinemann Ltd., 1991.
Warnecke, G. and Wimmer J., "Stock Removal and Wear in Deep Grinding High-Performance Ceramics," Industrial Diamond Review, 55(566), pp. 126-132, 1995.
Murakawa, Masao; Takeuchi, Sadao; "Forming of a grinding wheel using a dresser with brazed diamond film", Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing vA140 n, Jul. 7, 1991 pp. 759-763.
Stasyuk, L.F.; Kisikov, E.D.; Kushtalova, I.P.; "Structure and Properties of a Diamond-Containing Composition Material with a Tungsten-Free Matrix for a Truing Tool", Metal Science and Heat Treatment, v 28 n Nov.-Dec. 1986 pp. 835-839.
Kushtalova, I.P.;Stasyuk, L.F.; Kisikov, E.D.; "Development of a Diamond Containing Material With a Tungsten-Free Matrix for Dressing Tools", Soviet Journal of Superhard Materials v 8 n 1, Nov., 1986 pp. 48-51.
Kirk-Othmer, Engyclopedia of Chemical Technology 4th Ed., vol. 4., 1991 pp. 1082-1092.
Tech. Service Bulletin of Tomei Diamond Tomei's Comprehensive Product Line Up, undated.
Tech. Service Bulletin of General Electric An Analysis of the Coated Diamond Bond System, undated.
Tech. Service Bulletin of De Beers Industrial Diamond Division De Beers-80 US Mesh Diamond Abrasives, 1985.
Tech. Service Bulletin of American Boarts Crushing Industrial Diamonds for the Petroleum Industry, undated.
Buljan Sergej-Tomislav
Eagar Thomas W.
Miller Bradley J.
Schulz Eric
Shiue Ren-Kae
Heinrich Samuel M.
Norton Company
Porter Mary E.
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