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Experimental studies on the performance of multilayer coated carbide tool in hard turning of high strength low alloy steel

机译：多层涂层硬质合金刀具高强度低合金钢硬车削性能的实验研究

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摘要

The aim of the present investigation is to identify the wear mechanisms of multilayer coated carbide tool under different machining conditions during turning of hardened AISI 4340 steel. The chemical vapor deposited multilayer coated (TiN/MT TiC,N/Al_2O_3) carbide tool was used. The worn surfaces of the cutting tools were examined under digital optical microscope, scanning electron microscope, and elemental analysis. The investigation results showed a strong correlation between the cutting conditions and tool wear. The cutting speed and feed rate ensure the dominant effects on the tool wear followed by the depth of cut and also the progress of tool wear were verified under different intervals of time. The flank and rake faces of the cutting tool were severely gouged by the hard particles of workpiece material exhibited abrasive wear phenomenon. Intermittently, chipping at cutting edge, notching and catastrophic failure modes were observed in continuous machining.
机译：本研究的目的是确定在硬化AISI 4340钢车削过程中在不同加工条件下多层涂层硬质合金刀具的磨损机理。使用化学气相沉积的多层涂覆（TiN / MT TiC，N / Al_2O_3）碳化物工具。在数字光学显微镜，扫描电子显微镜和元素分析下检查切削工具的磨损表面。调查结果表明切削条件与刀具磨损之间存在很强的相关性。切削速度和进给速度确保了对刀具磨损的主要影响，其次是切削深度，并且在不同的时间间隔内验证了刀具磨损的进程。切削刀具的侧面和前刀面被工件材料的硬颗粒严重磨削，并表现出磨料磨损现象。在连续加工中，间歇性地观察到在切削刃处的崩裂，缺口和灾难性故障模式。

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  • 来源
    《Journal of Materials Research》 |2015年第20期|3056-3064|共9页
  • 作者

    R. Suresh; S. Basavarajappa; V.N. Gaitonde;

  • 作者单位

    Department of Mechanical Engineering, Alliance College of Engineering and Design, Alliance University, Bangalore 562106, Karnataka, India;

    Department of Studies in Mechanical Engineering, U.B.D.T. College of Engineering, Davangere 577004, Karnataka, India;

    Department of Industrial & Production Engineering, B.V.B. College of Engineering & Technology, Hubli 580031, Karnataka, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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