Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Patent
1986-12-10
1988-08-02
Olszewski, Robert P.
Abrasive tool making process, material, or composition
Impregnating or coating an abrasive tool
51105LG, 51 985, 511255, 5116578, 408129, 409167, B24B 1300
Patent
active
047606720
ABSTRACT:
An optical surface on a glass preform for an optical lens is simultaneously ground and polished. A glass blank is rotated by a work spindle mounted in an air bearing. A resin bonded diamond cutting ring is rotated by a tool spindle mounted in an air bearing. The axis of the tool spindle is set at an angle with respect to the axis of the work spindle with the edge of the cutting ring being centered on the axis of rotation of the blank. One of the spindles is moved linearly with respect to the other to move the cutting ring into engagement with the blank for grinding a precisely shaped, polished optical surface thereon. The spindles are mounted on a table and a driving motor for the linear drive is remote from the table to isolate the spindles from the vibration of the motor.
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Donaldson, R. R., Patterson, S. R. and Thompson, D. C., "Diamond-Machining and Mechanical Inspection of Optical Components", UCRL-86897, Lawrence Livermore National Laboratory, Livermore, CCA, Nov. 13, 1981.
Brehm, P. D., "Making the Most of Precision Machining", Photonics Spectra, Jun. 1982.
Darcangelo Charles M.
Hujar Robert M.
Schmitt Paul S.
Shafer, Jr. Harold G.
Corning Glass Works
Kurtz Richard E.
Olszewski Robert P.
Turner Burton R.
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