干燥环境下AZ31B镁合金车削刀具磨损及切屑形貌分析

IF 3.3 Q2 ENGINEERING, MANUFACTURING

Journal of Manufacturing and Materials Processing Pub Date : 2023-10-22 DOI:10.3390/jmmp7050187

Thabiso Moral Thobane, Sujeet Kumar Chaubey, Kapil Gupta

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引用次数: 0

摘要

本研究采用碳化钨氮化钨(TiCn)和薄氧化铝(Al2O3)涂层硬质合金刀具刀片在干燥环境下车削AZ31B镁合金。基于15个试验的Box-Behnken设计表明，在切削速度、进给速度和切削深度这3个加工参数下，齿面磨损呈比例增加趋势。影响最大的参数是切削速度。在高切削速度下，由于工作材料在刀具表面的过度粘附，最大侧面磨损为299.34µm。由于切屑较少，低速加工导致刀具磨损显著减少。刀具磨损和切屑形貌研究证实了这一结果。

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Analysis of Tool Wear and Chip Morphology during Turning of AZ31B Magnesium Alloy under Dry Environment

The present research investigated the turning of AZ31B magnesium alloy in a dry environment using carbide tool inserts coated with tungsten carbonitride (TiCn) and thin alumina (Al2O3). A Box–Behnken design based on fifteen experiments showed a proportional increasing trend of flank wear with all three machining parameters, i.e., cutting speed, feed rate, and depth of cut. The most influential parameter is the cutting speed. A maximum flank wear of 299.34 µm due to excessive adhesion of work material on the tool face was observed at a high cutting speed. Machining at low speed resulted in a significant reduction in tool wear due to less chipping. The tool wear and chip morphology study confirmed the results.

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