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Wear comparison of unstructured and structured tungsten carbide
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology ( IF 2 ) Pub Date : 2020-05-03 , DOI: 10.1177/1350650120923533
Anis Fatima 1 , Aqeel Ahmed 1 , Saima Yaqoob 1 , Muhammad Fahad 2
Affiliation  

Surface structuring is a recognised technique to improve frictional properties of interfering surfaces. A sufficient number of studies have confirmed the successful application of structuring on mechanical seals, golf balls, engine cylinder, sliding bearings, hard disk drives, etc. Lately, structuring is applied to metal cutting tools. This study identifies the information regarding the manufacturing process with the vision to improve the machining performance. For this, a comparative analysis of friction and dry sliding wear behaviour of structured and unstructured tungsten cemented carbide was assessed. Tests were performed at different sliding speed at the constant normal load of 40 N. Results show that structuring carbide can improve friction and wear performance by 23%. Also, structuring can decreased the coefficient of friction by 7%. Energy-dispersive X-ray analysis was conducted to quantify elements concentration. Microhardness tests were performed and results revealed the improvement in hardness of structured carbide. The case study confirms that structuring cutting tools can effectively elevate machining performance and improve environmental sustainability. This research is noteworthy for tool manufactures, engineering component/ machine designers and biomedical engineers, as it highlights the comprehensive understanding of structuring carbide.

中文翻译:

非结构化和结构化碳化钨的磨损比较

表面结构化是一种公认​​的改善干涉表面摩擦性能的技术。大量的研究证实了结构化在机械密封、高尔夫球、发动机气缸、滑动轴承、硬盘驱动器等上的成功应用。最近,结构化应用于金属切削工具。该研究确定了有关制造过程的信息,以提高加工性能。为此,对结构化和非结构化钨硬质合金的摩擦和干滑动磨损行为进行了比较分析。在 40 N 的恒定法向载荷下以不同的滑动速度进行测试。结果表明,结构化碳化物可以将摩擦磨损性能提高 23%。此外,结构化可以将摩擦系数降低 7%。进行能量色散 X 射线分析以量化元素浓度。进行了显微硬度测试,结果表明结构化碳化物的硬度有所提高。案例研究证实,结构化刀具可以有效提升加工性能并改善环境可持续性。这项研究对工具制造商、工程部件/机器设计师和生物医学工程师来说意义重大,因为它突出了对结构化硬质合金的全面理解。
更新日期:2020-05-03
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