Surface Modification of Powder Metallurgy Components With a Direct Diode Laser
Source abstract
Abstract
A 1200 W diode laser was used to modify the surface properties of a fully-sintered ferrous PM material. Two modifications were investigated; transformation hardening of selected areas and sealing of surface porosity by re-melting. The diode laser was used because the beam footprint is large (5×0.5 mm) and the wavelength short (0.94 μm). Processed samples were examined using metallographic and hardness testing techniques. Results indicated that hardness comparable to induction hardening could be achieved and re-melting could be controlled to seal porosity. Further work now needs to be undertaken to convert this demonstrated potential into a commercial reality.
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Research context
OpenAlex topics: High Entropy Alloys Studies · Metal and Thin Film Mechanics · Metal Alloys Wear and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Warwick Manufacturing Group, School of Engineering, University of Warwick, Coventry, England
References (19)
Show source-provided references
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