This paper chronicles the development of a vision system for tracking melt pool morphology in the laser metal deposition process. This development is to augment an existing temperature feedback control system. Monitoring both the temperature and shape of the melt pool is necessary because of the effects of local geometry on the cooling rate at the melt pool. Temperature feedback alone cannot accommodate this effect without complex process planning. The vision system's hardware, software, and integration into the laser deposition system's controller is detailed in this paper. Preliminary testing and the effects on depositionquality is also discussed.
T. E. Sparks et al., "Development of a Melt Pool Tracking Vision System for Laser Deposition," Proceedings of the 20th Annual International Solid Freeform Fabrication Symposium (2009, Austin, TX), pp. 148-154, University of Texas at Austin, Aug 2009.
20th Annual International Solid Freeform Fabrication Symposium (2009: Aug. 3-5, Austin, TX)
Mechanical and Aerospace Engineering
Intelligent Systems Center
Article - Conference proceedings
05 Aug 2009