Tribological characterization of cemented carbide tools in drilling of CFRP-Ti stacks by using modified tribometer

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2025-02-04 DOI:10.1016/j.wear.2025.205883

Sharjeel Ahmed Khan , Luis Vilhena , Andre Garcia , Nazanin Emami , Amilcar Ramalho

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引用次数: 0

Abstract

Cutting tool experiences rapid variation in thrust forces and torque during drilling of carbon fiber reinforced plastic and titanium (CFRP-Ti) stacks due to distinct materials characteristics, leading to complex wear mechanism. Existing tribotests fail to emulate the multifaceted contact situation of tool interacting with multi-materials simultaneously. This work presents a cost-effective modification using hybrid CFRP-Ti split-ring in cross-cylinder configuration to replicate contact situation during the drilling operation. The results showed a high coefficient of friction (COF) of ∼0.5 against Ti6Al4V and ∼0.21 against CFRP ring. Whereas, the test against CFRP-Ti split-ring showed cyclic COF variation, driven by complex synergistic wear mechanism that completely transformed the sliding contact. The modified tribotest results provide applicable estimation of COF variation and synergistic wear mechanism correlating well with WC-Co tool wear experienced in CFRP-Ti stacks drilling.

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用改进的摩擦计对CFRP-Ti叠层钻进硬质合金刀具的摩擦学特性进行了研究

碳纤维增强塑料和钛（CFRP-Ti）材料在钻进过程中，由于材料特性的不同，刀具的推力和扭矩会发生快速变化，导致复杂的磨损机制。现有的摩擦试验不能模拟刀具与多种材料同时作用的多方面接触情况。这项工作提出了一种具有成本效益的改进方法，使用交叉柱结构的混合CFRP-Ti劈裂环来复制钻井作业期间的接触情况。结果表明，与Ti6Al4V的摩擦系数（COF）为~ 0.5，与CFRP环的摩擦系数为~ 0.21。而CFRP-Ti劈裂环试验显示，COF在复杂的协同磨损机制驱动下发生循环变化，完全改变了滑动接触。改进的摩擦试验结果提供了COF变化和协同磨损机制的适用估计，与CFRP-Ti叠层钻井中WC-Co刀具磨损密切相关。

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.