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Laser Cladding of Metals (Paperback, 1st ed. 2021)
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Laser Cladding of Metals (Paperback, 1st ed. 2021)
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Laser cladding is an additive manufacturing technology capable of
producing coatings due to the surface fusion of metals. The
selected powder is fed into a focused laser beam to be melted and
deposited as coating. This allows to apply material in a selected
way onto those required sections of complex components. The process
main properties are the production of a perfect metallurgically
bonded and fully dense coatings; the minimal heat affected zone and
low dilution between the substrate and filler material resulting in
functional coatings that perform at reduced thickness, so fewer
layers are applied; fine, homogeneous microstructure resulting from
the rapid solidification rate that promotes wear resistance of
carbide coatings; near net-shape weld build-up requires little
finishing effort; extended weldability of sensitive materials like
carbon-rich steels or nickel-based superalloys that are difficult
or even impossible to weld using conventional welding processes;
post-weld heat treatment is often eliminated as the small heat
affected zone minimizes component stress; excellent process
stability and reproducibility because it is numerical controlled
welding process. The typical applications are the dimensional
restoration; the wear and corrosion protection; additive
manufacturing. The wide range of materials that can be deposited
and its suitability for treating small areas make laser cladding
particularly appropriate to tailor surface properties to local
service requirements and it opens up a new perspective for surface
engineered materials. The main key aspect to be scientifically and
technologically explored are the type of laser; the powders
properties; the processing parameters; the consequent
microstructural and mechanical properties of the processed
material; the capability of fabrication of prototypes to rapid
tooling and rapid manufacturing. Distills critical concepts,
methods, and applications from leading full-length chapters, along
with the authors's own deep understanding of the material taught,
into a concise yet rigorous graduate and advanced undergraduate
text; Reinforces concepts covered with detailed solutions to
illuminating and challenging industrial applications; Discusses
current and future applications of laser cladding in additive
manufacturing.
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