An Application Of Optical Surface Assessment To Engine Preparation Techniques

F. Sweeney; E. J. Davis; T. A. Spedding; K. J. Stout

doi:10.1117/12.967109

1 January 1987 An Application Of Optical Surface Assessment To Engine Preparation Techniques

F. Sweeney, E. J. Davis, T. A. Spedding, K. J. Stout

Proceedings Volume 0802, In-Process Optical Metrology for Precision Machining; (1987) https://doi.org/10.1117/12.967109
Event: Fourth International Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, The Hague, Netherlands

Abstract

Although the advantages of optical techniques have long been appreciated, the inherent limitations of such methods have meant that stylus techniques remain the accepted "standard" for surface assessment. The study of many engineering processes, such as engine preparation techniques, have been based on stylus methods. Much of this research may be extended to optical techniques for surface assessment if a detailed comparison of results obtained from the two techniques is carried out with respect to the process under investigation. A study of this kind will help to develop optical assessment techniques which, although will initially be limited to specific processes, may prove useful in the production environment. This paper presents a study of established two dimensional models which have been applied to the characterization of the preparation of engine cylinder liners and bores. These models are extended to three dimensions and quantified using a three dimensional stylus measuring system consisting of a computer controlled Talysurf 5 stylus instrument and a precision linear translation stage. Relocation techniques are then employed and the surface finish is assessed using a computer controlled laser measuring system. With reference to the original models it is shown that engine preparation techniques may be monitored using an optical assessment of this kind. Thus an alternative method of assessing the evolution of engine preparation is proposed for optically based techniques. It is hoped that studies of this nature will eventually lead to the development of an on line optical surface assessment system for engine preparation techniques with all its associated advantages.

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F. Sweeney, E. J. Davis, T. A. Spedding, and K. J. Stout "An Application Of Optical Surface Assessment To Engine Preparation Techniques", Proc. SPIE 0802, In-Process Optical Metrology for Precision Machining, (1 January 1987); https://doi.org/10.1117/12.967109

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KEYWORDS

3D modeling

Scattering

Surface finishing

Computing systems

Manufacturing

Optical metrology

Control systems

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