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Volume 11
Issue 3
10.3390/met11030400
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Article

Numerical Simulation and Verification of Laser-Polishing Free Surface of S136D Die Steel

by
Hao Zhou
1,2,
Houming Zhou
1,*,
Zhenyu Zhao
2,*,
Kai Li
1,2 and
Jie Yin
1,2
1
School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, China
2
Intelligent Manufacturing and Equipment School, Shenzhen Institute of Information Technology, Shenzhen 518172, China
*
Authors to whom correspondence should be addressed.
Metals 2021, 11(3), 400; https://doi.org/10.3390/met11030400
Submission received: 30 January 2021 / Revised: 16 February 2021 / Accepted: 20 February 2021 / Published: 1 March 2021
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Abstract

As a novel polishing technology, polishing by laser beam radiation can be used to improve the sample surface finish without causing material losses. In order to study the effect of laser polishing on the surface morphology of S136D die steel, an L16(44) orthogonal experiment was designed to describe the variation trend of surface roughness with energy density. The two-dimensional transient model of laser polishing was established to simulate the evolution process of material surface morphology during laser polishing by combining numerical simulation with the experiment. The model uses a moving laser heat source to study the effects of capillary pressure and thermocapillary pressure in the laser polishing process. The experimental results show that the minimum roughness can be reduced to 0.764 μm, and the error between the actual molten pool depth and the simulated molten pool depth is 5.3%.
Keywords: S136D die steel; laser polishing; thermocapillary; capillary S136D die steel; laser polishing; thermocapillary; capillary

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MDPI and ACS Style

Zhou, H.; Zhou, H.; Zhao, Z.; Li, K.; Yin, J. Numerical Simulation and Verification of Laser-Polishing Free Surface of S136D Die Steel. Metals 2021, 11, 400. https://doi.org/10.3390/met11030400

AMA Style

Zhou H, Zhou H, Zhao Z, Li K, Yin J. Numerical Simulation and Verification of Laser-Polishing Free Surface of S136D Die Steel. Metals. 2021; 11(3):400. https://doi.org/10.3390/met11030400

Chicago/Turabian Style

Zhou, Hao, Houming Zhou, Zhenyu Zhao, Kai Li, and Jie Yin. 2021. "Numerical Simulation and Verification of Laser-Polishing Free Surface of S136D Die Steel" Metals 11, no. 3: 400. https://doi.org/10.3390/met11030400

APA Style

Zhou, H., Zhou, H., Zhao, Z., Li, K., & Yin, J. (2021). Numerical Simulation and Verification of Laser-Polishing Free Surface of S136D Die Steel. Metals, 11(3), 400. https://doi.org/10.3390/met11030400

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