难切削合金 U71Mn 的电化学磨削加工性能研究

IF 1.5 4区工程技术 Q3 ENGINEERING, MECHANICAL Industrial Lubrication and Tribology Pub Date : 2024-01-10 DOI:10.1108/ilt-10-2023-0341

Zhaozhi Li, Changfu Zhang, Hairong Zhang, Haihui Liu, Zhao Zhu, Liucheng Wang

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引用次数: 0

摘要

目的本研究旨在应用电化学磨削（ECG）技术，在加工 U71Mn 合金时，在保证一定表面粗糙度的前提下提高材料去除率（MRR）。实验结果实验结果表明，46#电镀金刚石砂轮和 15 Wt.% NaNO3 + 10 Wt.% NaCl 电解液更适合应用于 U71Mn ECG。而 MRR 和表面粗糙度受加工参数（如外加电压、砂轮速度和加工时间）的影响。此外，在 15 Wt.% NaCl 电解液、17 V 应用电压、1 500 rpm 砂轮速度和 60 s 加工时间条件下，获得的最大 MRR 为 0.194 g/min。在 15 Wt.% NaNO3 + 10 Wt.% NaCl 电解液、13 V 应用电压、2,000 rpm 砂轮速度和 60 秒加工时间下，获得了最小表面粗糙度 Ra 0.312 µm。在加工 U71Mn 时，ECG 具有提高 MRR 和降低表面粗糙度的潜力。同行评议本文的同行评议记录可在以下网址查阅：https://publons.com/publon/10.1108/ILT-10-2023-0341/。

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Study of machining performance for electrochemical grinding of difficult-to-cut alloy U71Mn

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/

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来源期刊

Industrial Lubrication and Tribology 工程技术-工程：机械

CiteScore

3.00

自引率

18.80%

发文量

129

审稿时长

1.9 months

期刊介绍： Industrial Lubrication and Tribology provides a broad coverage of the materials and techniques employed in tribology. It contains a firm technical news element which brings together and promotes best practice in the three disciplines of tribology, which comprise lubrication, wear and friction. ILT also follows the progress of research into advanced lubricants, bearings, seals, gears and related machinery parts, as well as materials selection. A double-blind peer review process involving the editor and other subject experts ensures the content''s validity and relevance.