Fabrication of large radii toroidal surfaces by single point diamond turning
- Oak Ridge National Lab., TN (United States); and others
An unconventional machining technique has been developed for producing relatively large radii quasi-toroidal surfaces which could not normally be produced by conventional diamond turning technology. The maximum radial swing capacity of a diamond turning lathe is the limiting factor for the rotational radius of any toroid. A typical diamond turned toroidal surface is produced when a part is rotated about the spindle axis while the diamond tool contours the surface with any curved path. Toric surfaces sliced horizontally, have been used in laser resonator cavities. This paper will address the fabrication of a special case of toroids where a rotating tool path is a circle whose center is offset from the rotational axis of the toroid by a distance greater than the minor radius of the tool path. The quasi-toroidal surfaces produced by this technique approximate all asymmetrical combinations of concave/convex sections of a torus. Other machine configurations have been reported which offer alternative approaches to the fabrication of concave asymmetric aspheric surfaces.
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 244174
- Report Number(s):
- CONF-951056-; TRN: 96:000930-0002
- Resource Relation:
- Conference: 10. annual meeting of the American Society for Precision Engineering, Austin, TX (United States), 15-20 Oct 1995; Other Information: PBD: 1995; Related Information: Is Part Of 10th annual meeting of the American Society for Prevision Engineering; PB: 480 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Diamond turning large optics
Design and construction of a large, vertical-axis diamond turning machine