Process monitoring strategy for metal additive using off-the-shelf metrology

Kevin Harding

doi:10.1117/12.2520126

13 May 2019 Process monitoring strategy for metal additive using off-the-shelf metrology

Kevin Harding

Proceedings Volume 10991, Dimensional Optical Metrology and Inspection for Practical Applications VIII; 109910X (2019) https://doi.org/10.1117/12.2520126
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

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.

Conference Presentation

Citation Download Citation

Kevin Harding "Process monitoring strategy for metal additive using off-the-shelf metrology", Proc. SPIE 10991, Dimensional Optical Metrology and Inspection for Practical Applications VIII, 109910X (13 May 2019); https://doi.org/10.1117/12.2520126

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