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首页> 外文会议>60th aeronautics conference and AGM : Aerospace clusters: where are we headed? >THE APPLICATION OF AN ADVANCED PVD NANO-MULTILAYER TiAICrSiYN/TiAICrN COATING TO CEMENTED CARBIDE INSERTS FOR IMPROVED TURNING OF INCONEL 718
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THE APPLICATION OF AN ADVANCED PVD NANO-MULTILAYER TiAICrSiYN/TiAICrN COATING TO CEMENTED CARBIDE INSERTS FOR IMPROVED TURNING OF INCONEL 718

机译：先进的PVD纳米多层TiAlCrSiYN / TiAlCrN涂层在硬质合金刀片中的应用，以改善INCONEL 718的车削

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摘要

This paper presents the improved performance of carbide inserts in the finish turning of Inconel 718 when coated by Physical Vapour Deposition (PVD) with an advanced nano-multilayer TiAICrSiYN/TiAICrN coating. Tool life data in the form of flank wear versus length of cut is presented for this advanced coated insert as well as a monolayer nano-crystalline TiAlN coated insert at cutting speeds of 40 and 60 m/min. The nano-multilayer coating shows vastly superior performance, sustaining similar tool life even at the higher cutting speed. Friction coefficient results are also presented for both coatings against Inconel 718 under elevated temperature and pressure conditions relevant to the machining process. Friction coefficient data directly relates tool-chip contact length data. Given the adhesive nature of Inconel 718, it is postulated that the lower friction coefficient of the nano-multilayer coating at elevated temperatures is a driving force in the increased tool life. This reduced friction coefficient is linked to a greater ease of formation of beneficial tribofilms (possessing a combination of low thermal conductivity, chemical stability and lubricity) at the tool surface.
机译：本文介绍了用物理气相沉积（PVD）涂层和先进的纳米多层TiAlCrSiYN / TiAICrN涂层对Inconel 718进行精加工时，硬质合金刀片的性能得到改善。以先进的涂层刀片以及单层纳米晶TiAlN涂层刀片在40和60 m / min的切削速度下，以侧面磨损与切削长度的形式给出了刀具寿命数据。纳米多层涂层表现出极大的优越性能，即使在更高的切削速度下也能维持相似的刀具寿命。还显示了与Inconel 718相对的两种涂层在与加工过程相关的高温和高压条件下的摩擦系数结果。摩擦系数数据直接与工具-芯片接触长度数据相关。鉴于Inconel 718的粘合特性，可以假设纳米多层涂层在高温下的较低摩擦系数是延长工具寿命的驱动力。这种降低的摩擦系数与在工具表面上更容易形成有益的摩擦膜（具有低导热率，化学稳定性和润滑性的结合）有关。

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