Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1990-07-11
1991-09-17
Rose, Robert A.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51289S, 51284R, 51292, 51 73R, B24B 1100, B24B 5702
Patent
active
050482386
ABSTRACT:
A spherical surface of the workpiece is machined, i.e., abraded or polished, with an abrasive particle layer on a tubular jig. The tubular jig is rotatable about a first axis, and has a through passage extending along the first axis and having a tapered surface on the peripheral edge of an outlet, the tapered surface spreading outwardly. The tubular jig is rotated about the first axis, and a fluid lubricant-coolant containing suspended abrasive particles is supplied into the through passage, so that a highly packed flowing layer of abrasive particles is produced on and along the tapered surface under centrifugal forces generated by the rotation of the tubular jig. Then, the spherical surface of the workpiece, which is rotating about a second axis at a predetermined angle with respect to the first axis, is pressed against the flowing layer of abrasive particles.
REFERENCES:
patent: 1262217 (1918-04-01), Leperre
patent: 3218765 (1965-11-01), Volk
patent: 3882641 (1975-05-01), Montgomery et al.
Morlyama, S., Uchida, F. and Seya, E., "Development of a Precision Diamond Turning Machine for Fabrication of Asymmetric Aspheric Mirrors," Opitcal Engineering, Nov. 1988, vol. 27 No. 11, pp. 1008-1012.
McCue, Howard K., "The Motion Control System for the Large Optics Diamond Turning Machine (LODTM)," Instrument Society of America, Oct. 6, 1981, pp. 163-169.
Donaldson, R. R. and Patterson, S. R., "Design and Construction of a Large, Vertical Axis Diamond Turning Machine," SPIE's 27th Annual International Technical Symposium and Instrument Display Aug. 21-26, 1983, pp. 157-161.
"Influence of Phosphorous Content and Heat Treatment on the Machinability of Electroless Nickel Deposits" by C. K. Syn, J. W. Dini, J. S. Taylor, G. L. Mara, R. R. Vandervoort & R. R. Donaldson.
Nippon Sheet Glass Co. Ltd.
Rose Robert A.
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