Tool wear of DLC coating as top-layered to CrN, TiAlSiN, TiAlN coatings in machining of steel and aluminum alloys

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2024-09-18 DOI:10.1016/j.wear.2024.205574

M.S. Ibrahim , M.H. Sulaiman , R. Samin , Y. Yaakob , Shahira Liza Kamis , M.J.M. Ridzuan , A.A. Pauzi , N.A. Sukindar , K. Bienk

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引用次数: 0

Abstract

This study investigates the tribological performance of DLC top-layered coatings applied to surfaces of tools coated with CrN, TiAlSiN, and TiAlN. Double-layered coated tools (DLC/CrN, DLC/TiAlSiN, and DLC/TiAlN) were evaluated against single-layered (CrN, TiAlSiN, and TiAlN) and uncoated carbide cutting tools. The coatings were applied using the HiPIMS technique. Machining through orthogonal cutting under dry friction conditions with constant cutting parameters (240 rev/min speed, 2 mm cutting depth, 0.15 rev/mm feed rate) was performed on materials with soft ductile (aluminum) and hard, brittle (steel) characteristics. The coated tools exhibited approximately 20–30 % reductions in interface temperature, workpiece roughness, and chip thickness. The DLC top-layered coatings improved tool durability for machining both ductile and brittle materials, as evidenced in Raman analysis. Among the DLC coatings, DLC/TiAlN demonstrated the highest wear resistance and enhanced tool life, as confirmed by SEM-EDS analysis.

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在加工钢和铝合金时，DLC 涂层作为 CrN、TiAlSiN、TiAlN 涂层的面层的刀具磨损情况

本研究调查了在涂有 CrN、TiAlSiN 和 TiAlN 的工具表面上使用 DLC 表层涂层的摩擦学性能。双层涂层工具（DLC/CrN、DLC/TiAlSiN 和 DLC/TiAlN）与单层涂层（CrN、TiAlSiN 和 TiAlN）和未涂层硬质合金切削工具进行了对比评估。涂层采用了 HiPIMS 技术。在干摩擦条件下，以恒定的切削参数（转速 240 转/分钟，切削深度 2 毫米，进给速度 0.15 转/毫米）通过正交切削对具有软延展性（铝）和硬脆性（钢）特征的材料进行了加工。涂层刀具的界面温度、工件粗糙度和切屑厚度降低了约 20-30%。拉曼分析表明，DLC 表层涂层提高了刀具在加工韧性和脆性材料时的耐用性。SEM-EDS 分析证实，在 DLC 涂层中，DLC/TiAlN 的耐磨性最高，刀具寿命也更长。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Wear 工程技术-材料科学：综合

CiteScore

8.80

自引率

8.00%

发文量

280

审稿时长

47 days

期刊介绍： Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.