6 February 2012 The use of novel, direct diode lasers for large area hard-facing and high deposition rate cladding to enhance surface wear and corrosion resistance
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Abstract
The objective of this paper is to introduce large area heat treating and cladding processes using novel, free space diode lasers as a means to reduce re-manufacturing costs and extend field lifetime of components. Lasers have been explored as an option for hard-facing and repair of metal surfaces for several years. This paper will describe how recent advances in diode laser design have resulted in enhanced process yields, improved quality and increased throughput, while also minimizing operating cost. A quantitative study shows that the time needed to cover a one square meter area during heat treating, and also during cladding applications, decreases by a factor of approximately 2.5, even when the laser power has only been increased by a factor of 1.75. This assumes the line beam length has also been increased to take full advantage of the additional laser power.
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Stephen Brookshier, John Washko, Keith Parker, Frank Gaebler, Wolfgang Juchmann, "The use of novel, direct diode lasers for large area hard-facing and high deposition rate cladding to enhance surface wear and corrosion resistance", Proc. SPIE 8239, High Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications, 82390H (6 February 2012); doi: 10.1117/12.908947; https://doi.org/10.1117/12.908947
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