Laser net shape manufacturing (LNSM) builds parts by successively cladding layers of powder on a substrate. The accuracy of deposition and the quality of the clad surface are highly dependent on the process parameters used in the deposition. A key process parameter is the NC toolpath used to drive the deposition nozzle. The NC toolpath is composed of the geometric path of the nozzle head and the parameters used to control the motion of the nozzle. This paper investigates the effect of deposition geometries and process parameters on the surface quality of the clad artifact. Prominent surface defects in the clad part are identified. Additionally, toolpath strategies are proposed to address these defects and improve the surface quality. The scope of the discussion is limited to hollow parts with no internal features.
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ICALEO 2005: 24th International Congress on Laser Materials Processing and Laser Microfabrication
October 31–November 3, 2005
Miami, Florida, USA
ISBN:
978-0-912035-82-6
PROCEEDINGS PAPER
Investigation on toolpath geometries for surface quality improvement in laser net shape manufacturing
Prabhjot Singh;
Prabhjot Singh
*
General Electric Global Research
, Niskayuna, NY 12309, USA
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Prashant Kulkarni;
Prashant Kulkarni
*
General Electric Global Research
, Niskayuna, NY 12309, USA
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Huan Qi;
Huan Qi
*
General Electric Global Research
, Niskayuna, NY 12309, USA
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Vinod Kumar;
Vinod Kumar
**
General Electric John F. Welch Technology Center
, Bangalore, India
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Magdi Azer
Magdi Azer
*
General Electric Global Research
, Niskayuna, NY 12309, USA
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Published Online:
October 01 2005
Citation
Prabhjot Singh, Prashant Kulkarni, Huan Qi, Vinod Kumar, Magdi Azer; October 31–November 3, 2005. "Investigation on toolpath geometries for surface quality improvement in laser net shape manufacturing." Proceedings of the ICALEO 2005: 24th International Congress on Laser Materials Processing and Laser Microfabrication. ICALEO 2005: 24th International Congress on Laser Materials Processing and Laser Microfabrication. Miami, Florida, USA. (pp. 606). ASME. https://doi.org/10.2351/1.5060508
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