Study of machining performance for electrochemical grinding of difficult-to-cut alloy U71Mn
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 10 January 2024
Issue publication date: 13 February 2024
Abstract
Purpose
This study aims to apply an electrochemical grinding (ECG) technology to improve the material removal rate (MRR) under the premise of certain surface roughness in machining U71Mn alloy.
Design/methodology/approach
The effects of machining parameters (electrolyte type, grinding wheel granularity, applied voltage, grinding wheel speed and machining time) on the MRR and surface roughness are investigated with experiments.
Findings
The experiment results show that an electroplated diamond grinding wheel of 46# and 15 Wt.% NaNO3 + 10 Wt.% NaCl electrolyte is more suitable to be applied in U71Mn ECG. And the MRR and surface roughness are affected by machining parameters such as applied voltage, grinding wheel speed and machining time. In addition, the maximum MRR of 0.194 g/min is obtained with the 15 Wt.% NaCl electrolyte, 17 V applied voltage, 1,500 rpm grinding wheel speed and 60 s machining time. The minimum surface roughness of Ra 0.312 µm is obtained by the 15 Wt.% NaNO3 + 10 Wt.% NaCl electrolyte, 13 V applied voltage, 2,000 rpm grinding wheel speed and 60 s machining time.
Originality/value
Under the electrolyte scouring effect, the products and the heat generated in the machining can be better discharged. ECG has the potential to improve MRR and reduce surface roughness in machining U71Mn.
Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-10-2023-0341/
Keywords
Acknowledgements
The work was financially supported by the National Natural Science Foundation of China (No. 52075409), the National Foreign Expert Projects of the Ministry of Science and Technology of China (Grant No. G2022040009L) and the Key R&D Plan Project of Shaanxi Province (2021GY - 272).
Author contributions: Zhaozhi Li – paper writing, experiment and translation of paper. Changfu Zhang – paper framework construction, paper writing guidance and proofreading of paper content. Hairong Zhang – data compilation and figure production. Haihui Liu – experiment, paper translation and proofreading. Zhao Zhu – experiment and paper typesetting. Liucheng Wang – format modification.
Citation
Li, Z., Zhang, C., Zhang, H., Liu, H., Zhu, Z. and Wang, L. (2024), "Study of machining performance for electrochemical grinding of difficult-to-cut alloy U71Mn", Industrial Lubrication and Tribology, Vol. 76 No. 2, pp. 196-205. https://doi.org/10.1108/ILT-10-2023-0341
Publisher
:Emerald Publishing Limited
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