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Diode laser metal deposition: The effect of pulsed beam parameters on superalloy microstructure and deposit morphology

Research output: Contribution in Book/Report/ProceedingsPaper

Published

Publication date2006
Host publicationProceedings of the 25th International Congress on Applications of Lasers and Electro-optics (ICALEO)
PublisherLaser Institute of America
Original languageEnglish

Abstract

This work describes a study of laser direct metal deposition (LDMD), using a diode laser in pulsed (discontinuous beam) mode and a coaxial powder nozzle. An experimental study analyses the effect of pulse parameters on the microstructure of thin-wall Waspaloy (nickel superalloy) parts and a simple model is used to explain some of the trends seen. Findings indicate that varying pulse parameters is potentially a useful way of controlling laser deposited superalloy part properties.