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25 October 2023 Study on electrochemical polishing process parameters of SLM-NiTi alloy based on Box-Behnken response surface method
Jianwei Che, Guangfeng Shi, Ying Xu, Lunxiang Li, Jingran Zhang, Tianwen Zhou
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Proceedings Volume 12801, Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023); 128010D (2023) https://doi.org/10.1117/12.3007281
Event: Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023), 2023, Dalian, China
Abstract
NiTi alloy has unique super elasticity and shape memory, and is widely used in aerospace, biomedical and intelligent control fields. At present, the mainstream selective laser melting technology (SLM) can prepare NiTi alloy with complex structure, but the surface roughness is poor, which needs to be processed by electrochemical polishing. In order to optimize the electrochemical polishing process parameters, Box-Behnken response surface was used for regression analysis in this paper. Surface roughness was used as an evaluation index to analyze the influence of voltage, temperature, and reaction time on roughness. Based on the results of electrochemical polishing experiments, a prediction model for surface roughness was established and its response surface graph was obtained, the significance of the prediction model and parameters was tested using analysis of variance. The results indicate that the model can effectively predict the surface roughness of SLM-NiTi alloy after electrochemical polishing, and the best parameters are as follows: the voltage is 13.5V, the temperature is 27.7 C  , and the reaction time is 53 seconds, which lays the foundation for high efficiency and high quality polishing of SLM-NiTi alloy, and has important scientific significance and research value for expanding the application of SLM-NiTi alloy parts.
(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Jianwei Che, Guangfeng Shi, Ying Xu, Lunxiang Li, Jingran Zhang, and Tianwen Zhou "Study on electrochemical polishing process parameters of SLM-NiTi alloy based on Box-Behnken response surface method", Proc. SPIE 12801, Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023), 128010D (25 October 2023); https://doi.org/10.1117/12.3007281
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KEYWORDS
Polishing
Alloys
Surface roughness
Surface finishing
Radium
Additive manufacturing
Laser applications
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