To promote the applications of laser cladding to thicker and large area coating conditions, a novel laser deep penetration spot cladding method was developed to integrate the characteristics of laser texturing, laser deep penetration welding, laser cladding and laser alloying. Experiments indicate that this method is able to achieve a deeper hardened layer containing a cladding zone and alloying zone with particulate reinforced metal matrix composite, which is free of crack and porosity. The microstructure in both the cladding and alloying zone is composed of in situ precipitated TiC carbide hard particles homogeneous distributed in tough FeCSiB austenite matrix. The hardened layer contains 0.8mm cladding zone and 0.7mm alloying zone,. The microhardness is 661-909 HV0.2 in cladding zone and 570-732 HV0.2 alloying zone.
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1st Pacific International Conference on Laser Materials Processing, Micro, Nano and Ultrafast Fabrication
April 19–21, 2004
Melbourne, Australia
ISBN:
978-0-912035-76-5
PROCEEDINGS PAPER
Laser deep penetration spot cladding with powder feeding
Lin Yang;
Lin Yang
Laser Processing & Rapid Prototyping Research Center, Department of Mechanical Engineering, Tsinghua University
, 100084, Beijing China
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Jinjiang He;
Jinjiang He
Laser Processing & Rapid Prototyping Research Center, Department of Mechanical Engineering, Tsinghua University
, 100084, Beijing China
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Minlin Zhong;
Minlin Zhong
Laser Processing & Rapid Prototyping Research Center, Department of Mechanical Engineering, Tsinghua University
, 100084, Beijing China
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Wenjin Liu
Wenjin Liu
Laser Processing & Rapid Prototyping Research Center, Department of Mechanical Engineering, Tsinghua University
, 100084, Beijing China
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Published Online:
April 01 2004
Citation
Lin Yang, Jinjiang He, Minlin Zhong, Wenjin Liu; April 19–21, 2004. "Laser deep penetration spot cladding with powder feeding." Proceedings of the 1st Pacific International Conference on Laser Materials Processing, Micro, Nano and Ultrafast Fabrication. PICALO 2004: 1st Pacific International Conference on Laser Materials Processing, Micro, Nano and Ultrafast Fabrication. Melbourne, Australia. (pp. 706). ASME. https://doi.org/10.2351/1.5056120
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