Electric heating – Metal heating – By arc
Patent
1998-06-03
1999-12-14
Evans, Geoffrey S.
Electric heating
Metal heating
By arc
36447408, 384132, 384625, B23K 2600
Patent
active
060021004
ABSTRACT:
A method for designing bearings, of improved performance, the load-bearing surfaces of which feature micropores about 2 to 10 microns deep and, preferably, aspect ratios on the order of 7 to 20. The hydrodynamic pressure distribution of a suite of bearing surfaces with different micropore geometries and densities is modeled numerically. The load-bearing surfaces of the bearings are fabricated with micropores having the optimal density and geometry determined by the numerical modeling. Conical micropores may be created by single laser pulses, with the pore size and shape controlled by controlling the laser beam profile, the laser beam power, and the optical parameters of the focusing system.
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Evans Geoffrey S.
Friedman Mark M.
Surface Technologies Ltd.
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