Cross-section modeling of pulsed Nd:YAG laser cladding

Francois Lemoine; Dominique F. Grevey; A. B. Vannes

doi:10.1117/12.193121

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4 November 1994 Cross-section modeling of pulsed Nd:YAG laser cladding

Francois Lemoine; Dominique F. Grevey; A. B. Vannes

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Proceedings Volume 2246, Laser Materials Processing and Machining; (1994) https://doi.org/10.1117/12.193121
Event: Optics for Productivity in Manufacturing, 1994, Frankfurt, Germany

Abstract

We present in this work the parameters study in case of laser cladding (stellite 6 onto stainless steel) with a pulsed Nd:YAG laser and sprayed powder. We characterize the clads by geometrical consideration (cross-section) that allows us to obtain different results concerning laser parameters: particularly the pulse energy (fluence) and the pulse duration. The clad starts up above a fluence threshold and the quantity of melted powder reaches a constant value above a pulse duration. This pulse duration value depends directly on the frequency and powder thermal properties. From those results and a study of laser/powder interaction, we develop an analytical model. This model evaluates, from the cross-section, the melted powder quantity.

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Francois Lemoine, Dominique F. Grevey, and A. B. Vannes "Cross-section modeling of pulsed Nd:YAG laser cladding", Proc. SPIE 2246, Laser Materials Processing and Machining, (4 November 1994); https://doi.org/10.1117/12.193121

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