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Start Over Author "Zheng, Zhizhen" Publisher elsevier bv
25 results on '"Zheng, Zhizhen"'

10. Micro-beam plasma polishing of ground alloy steel surfaces

Author

Li Jianjun, Zheng Zhizhen, and Tiantian Deng

Subjects
0209 industrial biotechnology, Materials science, Computer simulation, Alloy steel, Polishing, Forming processes, 02 engineering and technology, Plasma, Surface finish, engineering.material, 021001 nanoscience & nanotechnology, Industrial and Manufacturing Engineering, 020901 industrial engineering & automation, Machining, Artificial Intelligence, engineering, Electric current, Composite material, 0210 nano-technology
Abstract

Polishing provides a commendable approach to gain high quality surfaces after machining or forming processes. A micro-beam plasma polishing was presented in this paper. Several metal materials were tested and SUS304 was used to find optimized parameters. A numerical simulation model was established on COMSOL software to help digest melt pool dynamics which influences roughness a lot. The experiment showed a reduction of roughness from Ra=4.07μm to Ra=0.46μm with optimized parameters. The simulation proved that the increase in electric current can increase melt pool velocity, which is in favor of obtaining a smooth finish surface.

Published
2018

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