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Proceedings Paper

In-Process And Post-Process Measurement And Control In Precision Machining
Author(s): P. A. McKeown
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Paper Abstract

For cost effective control of quality, dimensional size and profile in precision machining, closed loop error feed-back techniques are essential. In other words, maximum efficiency of quality control occurs when the highest speed of response is achieved at the closest possible point of application to the manufacturing process. Optical displacement measuring transducers (grating and CW laser based), coupled with high precision and hiyh response closed loop servo systems under microprocessor control, will be described in the precision machining of high precision engineering components such as cam rings, camshafts, gears and non-conventional optical components. The principles of on-line error compensation techniques will be described in relation to the diamond machining of X-ray telescope mirrors and 3D coordinate measuring machines. The application of laser scanning to the automatic inspection of automotive cylinder bores will also be briefly described, showing how the high costs of visual inspection by human operators can be greatly reduced whilst improving consistency of quality control in detecting of single and cluster surface defects in i.c. engine cylinders.

Paper Details

Date Published: 10 August 1983
PDF: 1 pages
Proc. SPIE 0376, Optical Sensing: Techniques, Benefits, Costs, (10 August 1983); doi: 10.1117/12.934721
Show Author Affiliations
P. A. McKeown, Cranfield Institute of Technology (England)


Published in SPIE Proceedings Vol. 0376:
Optical Sensing: Techniques, Benefits, Costs
S. J. Bennett, Editor(s)

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