Process Research of Laser Variable-Spot Overlap Cladding Based on Inside-Laser Coaxial Powder Feeding

Fei Cao; Shi Hong Shi; Ge Yan Fu; Yi Shao Zhang; Ji Li

doi:10.4028/www.scientific.net/AMR.566.556

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 566Process Research of Laser Variable-Spot Overlap...

Process Research of Laser Variable-Spot Overlap Cladding Based on Inside-Laser Coaxial Powder Feeding

Abstract:

Analyze the contradiction of laser cladding rapid prototyping between cladding efficiency and cladding precision, this paper advanced laser variable-spot cladding process with small facula outlining border of workpiece and big facula filling in central section of workpiece in order to improve the influence of “Step effect”. Based on the patent technology of “Hollow laser beam and internal power feeding”, the experiments of laser variable-spot overlap cladding are carried out on the substrate of 45# steel with a novel device of coaxial inside-beam power feeding. The experimental results were analyzed to provide a theoretical basis for the promotion and application of laser variable -spot overlap cladding.

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Periodical:

Advanced Materials Research (Volume 566)

Pages:

556-559

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.566.556

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Online since:

September 2012

Authors:

Fei Cao, Shi Hong Shi, Ge Yan Fu, Yi Shao Zhang, Ji Li

Keywords:

Coaxial Inside-Beam Powder Feeding, Laser Cladding, Overlap Cladding, Step Effect, Variable-Spot Cladding

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