Astronomy and Astrophysics – Astronomy
Scientific paper
May 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990stan.rept.1982d&link_type=abstract
Final Report, 1982-1990 Stanford Univ., CA. Dept. of Aeronautics and Astronautics.
Astronomy and Astrophysics
Astronomy
High Power Lasers, Machining, Mirrors, Optical Equipment, Precision, Surface Finishing, Accuracy, Diamonds, Isolation, Laser Targets, Machine Tools, Single Crystals, Vibration Isolators, X Ray Astronomy
Scientific paper
There are a number of fields that require or can use to advantage very high precision in machining. For example, further development of high energy lasers and x ray astronomy depend critically on the manufacture of light weight reflecting metal optical components. To fabricate these optical components with machine tools they will be made of metal with mirror quality surface finish. By mirror quality surface finish, it is meant that the dimensions tolerances on the order of 0.02 microns and surface roughness of 0.07. These accuracy targets fall in the category of ultra precision machining. They cannot be achieved by a simple extension of conventional machining processes and techniques. They require single crystal diamond tools, special attention to vibration isolation, special isolation of machine metrology, and on line correction of imperfection in the motion of the machine carriages on their way.
Binford Thomas
DeBra Daniel B.
Hesselink Lambertus
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