Dr.
Hesham A. Hegazi
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REVERSE ENGINEERING AND CAD OF BEVEL GEARS
ABSTRACT This paper implements the reverse engineering and CAD of
Bevel gears. Bevel gears are considered as standard machine elements, which has
well defined parameters that are interrelated by geometrical relations. These
geometrical relations can be used to deduce needed parameters from few measured
ones. Standard machine elements need not be scanned and identified as surface or
solid model, using surface scanning techniques such as CMM, or laser scanning.
The presented procedure is devoted to the reverse engineering, and redesign
using CAD techniques for bevel gears. A computer aided reverse engineering
(CARE) program is used to satisfy all geometric constraints, identify other
dependent geometries and define production and inspection requirements. Another
standard CAD program is linked for further check of the design appropriateness
of material selection, loading condition. This link between the two programs can
improve the design of the old reverse engineered bevel gears. KEYWORDS Gears, Bevel Gears, CAD, Reverse engineering, Geometry Identification. |
