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首页> 外文期刊>Arabian Journal for Science and Engineering >Effects of Cutting Speed on Chip Characteristics and Tool Wear Mechanisms During Dry Machining of Inconel 718 Using UncoatedWC Tool
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Effects of Cutting Speed on Chip Characteristics and Tool Wear Mechanisms During Dry Machining of Inconel 718 Using UncoatedWC Tool

机译：无涂层工具，钢化加工过程中切割速度和工具磨损机构的影响

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摘要

The present work deals with tool wear and chip characteristics during dry machining of Inconel 718 using uncoated WC tool. Chip morphology (macro/micro), phenomenon of flank, and crater wear are studied. Effects of cutting speed on cutting force, chip reduction coefficient, approximate temperature generated at the machining zone, and depth of flank wear are discussed. Different wear mechanisms are identified. Abrasion, adhesion, built-up-edge formation, chipping off, grooving, chip welding, and burning are found responsible toward tool wear. It is observed that surface finish of the machined part degrades with increase in flank wear depth. Residuals of Ni, Cr, Fe (major constituents of Inconel 718) are detected through EDS analysis of the adhered chip over the tool surface. XRD analysis also identifies oxides of Fe and Nb present therein. Dry machining condition thus promotes the oxidation of few elements of work material.
机译：本工作涉及使用未涂覆的WC工具的Inconel 718的干加工过程中的工具磨损和芯片特性。研究了芯片形态（宏/微观），侧翼现象和火山口磨损。讨论了切削速度对切割力的影响，加工区内产生的芯片还原系数，近似温度，以及侧面磨损深度。确定了不同的磨损机制。发现刀具磨损的磨损，粘附，内置边缘形成，切断，开槽，芯片焊接和燃烧。观察到加工部分的表面光洁度随侧面磨损深度的增加而劣化。 Ni，Cr，Fe（Inconel 718的主要成分）通过EDS分析在工具表面上进行分析来检测Ni。 XRD分析还识别存在于其中的Fe和Nb的氧化物。因此，干加工条件促进了少数工件材料的氧化。

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