Study on laser surface quenching structure and hardness of C45 steel

S. Y. Chen; Y. X. Chen; S. F. Jiao; L. Zhong; L. Gao; L. Miao

Metalurgija (Jan 2021)

Study on laser surface quenching structure and hardness of C45 steel

S. Y. Chen,
Y. X. Chen,
S. F. Jiao,
L. Zhong,
L. Gao,
L. Miao

Affiliations

S. Y. Chen: School of Applied Technology, University of Science and Technology Liaoning, Anshan, Liaoning China
Y. X. Chen: School of Applied Technology, University of Science and Technology Liaoning, Anshan, Liaoning China
S. F. Jiao: School of Applied Technology, University of Science and Technology Liaoning, Anshan, Liaoning China
L. Zhong: School of Applied Technology, University of Science and Technology Liaoning, Anshan, Liaoning China
L. Gao: School of Applied Technology, University of Science and Technology Liaoning, Anshan, Liaoning China
L. Miao: School of Applied Technology, University of Science and Technology Liaoning, Anshan, Liaoning China

Journal volume & issue: Vol. 60, no. 3-4
pp. 253 – 256

Abstract

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The changes of hardening depth and surface hardness of C45 steel after laser surface quenching were studied. Firstly, the Nd: YAG laser and CO2 laser were used to realize the surface quenching. High power CO2 laser quenching C45 steel, variable process parameters include power, scanning speed and defocusing distance. Then, the Nd:YAG laser was used to quench the samples through orthogonal experiments, and the optimized process parameters were obtained, and the surface hardness was obviously improved. Finally, by comparing the quenching C45 steel of CO2 laser, the influence curve of process parameters on surface hardness was found, and the optimal process parameters were obtained.

Published in Metalurgija

ISSN: 0543-5846 (Print); 1334-2576 (Online)
Publisher: Croatian Metallurgical Society
Country of publisher: Croatia
LCC subjects: Technology: Mining engineering. Metallurgy
Website: http://pubweb.carnet.hr/metalurg/journal-metalurgija-2/about-journal

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