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Process monitoring strategy for metal additive using off-the-shelf metrology
Author(s): Kevin Harding
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Paper Abstract

Making metal parts by means of laser consolidation has gained much publicity in recent years. However, unlike laser welding or traditional machining, the experience base of know how to produce good parts is not well understood yet. There are many variables in metal additive part production such as source energy, the speed of the source movement, the consistency of the material, and any flaws or “inclusions” in the prepared work material. These issues are not unlike finding the best feed and speed for machining or working from a near net shape casting without encountering porosity, cracks or voids in the work material. There already exists a wide range of optical gages and inspection tools ranging from IR sensors to laser gages to high resolution video which is in wide use in outer manufacturing sectors. This paper will examine the needs for monitoring and measuring metal additive production that have been identified by the industry and reference those needs against the commercial tools of optical metrology and inspection. Specific examples of possible applications will be presented through a matrix of potential solutions including the pros and cons of each method.

Paper Details

Date Published: 13 May 2019
PDF: 15 pages
Proc. SPIE 10991, Dimensional Optical Metrology and Inspection for Practical Applications VIII, 109910X (13 May 2019); doi: 10.1117/12.2520126
Show Author Affiliations
Kevin Harding, Optical Metrology Solutions LLC (United States)


Published in SPIE Proceedings Vol. 10991:
Dimensional Optical Metrology and Inspection for Practical Applications VIII
Kevin G. Harding; Song Zhang, Editor(s)

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