Grinding Characteristics of MoS2-Coated Brazed CBN Grinding Wheels in Dry Grinding of Titanium Alloy

IF 5.1 2区工程技术 Q1 Engineering

Chinese Journal of Mechanical Engineering Pub Date : 2023-09-20 DOI:10.1186/s10033-023-00936-z

Junshuai Zhao, Biao Zhao, Wenfeng Ding, Bangfu Wu, Ming Han, Jiuhua Xu, Guoliang Liu

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引用次数: 1

Abstract

Abstract As an important green manufacturing process, dry grinding has problems such as high grinding temperature and insufficient cooling capacity. Aiming at the problems of sticking and burns in dry grinding of titanium alloys, grinding performance evaluation of molybdenum disulfide (MoS 2 ) solid lubricant coated brazed cubic boron carbide (CBN) grinding wheel (MoS 2 -coated CBN wheel) in dry grinding titanium alloys was carried out. The lubrication mechanism of MoS 2 in the grinding process is analyzed, and the MoS 2 -coated CBN wheel is prepared. The results show that the MoS 2 solid lubricant can form a lubricating film on the ground surface and reduce the friction coefficient and grinding force. Within the experimental parameters, normal grinding force decreased by 42.5%, and tangential grinding force decreased by 28.1%. MoS 2 lubricant can effectively improve the heat dissipation effect of titanium alloy grinding arc area. Compared with common CBN grinding wheel, MoS 2 -coated CBN wheel has lower grinding temperature. When the grinding depth reaches 20 μm, the grinding temperature decreased by 30.5%. The wear of CBN grains of grinding wheel were analyzed by mathematical statistical method. MoS 2 lubricating coating can essentially decrease the wear of grains, reduce the adhesion of titanium alloy chip, prolong the service life of grinding wheel, and help to enhance the surface quality of workpiece. This research provides high-quality and efficient technical support for titanium alloy grinding.

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涂层mos2钎焊CBN砂轮干式磨削钛合金的磨削特性

干式磨削作为一种重要的绿色制造工艺，存在磨削温度高、冷却能力不足等问题。针对钛合金干式磨削存在的粘烧问题，对二硫化钼(MoS 2)固体润滑剂包覆钎焊立方碳化硼(CBN)砂轮(MoS 2包覆CBN砂轮)在干式磨削钛合金中的磨削性能进行了评价。分析了mos2在磨削过程中的润滑机理，制备了mos2包覆CBN砂轮。结果表明:MoS 2固体润滑剂能在磨削表面形成润滑膜，降低摩擦系数和磨削力;在实验参数范围内，法向磨削力减小42.5%，切向磨削力减小28.1%。mos2润滑剂能有效提高钛合金磨削弧区的散热效果。与普通CBN砂轮相比，mos2涂层CBN砂轮具有较低的磨削温度。当磨削深度达到20 μm时，磨削温度降低30.5%;采用数理统计方法对CBN砂轮的磨损进行了分析。MoS 2润滑涂层可以从根本上减少晶粒磨损，减少钛合金切屑的附着，延长砂轮的使用寿命，有助于提高工件表面质量。本研究为钛合金磨削加工提供了优质、高效的技术支持。

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

Chinese Journal of Mechanical Engineering ENGINEERING, MECHANICAL-

CiteScore

5.60

自引率

4.80%

发文量

3097

审稿时长

8 months

期刊介绍： Chinese Journal of Mechanical Engineering (CJME) was launched in 1988. It is a peer-reviewed journal under the govern of China Association for Science and Technology (CAST) and sponsored by Chinese Mechanical Engineering Society (CMES). The publishing scopes of CJME follow with: Mechanism and Robotics, including but not limited to -- Innovative Mechanism Design -- Mechanical Transmission -- Robot Structure Design and Control -- Applications for Robotics (e.g., Industrial Robot, Medical Robot, Service Robot…) -- Tri-Co Robotics Intelligent Manufacturing Technology, including but not limited to -- Innovative Industrial Design -- Intelligent Machining Process -- Artificial Intelligence -- Micro- and Nano-manufacturing -- Material Increasing Manufacturing -- Intelligent Monitoring Technology -- Machine Fault Diagnostics and Prognostics Advanced Transportation Equipment, including but not limited to -- New Energy Vehicle Technology -- Unmanned Vehicle -- Advanced Rail Transportation -- Intelligent Transport System Ocean Engineering Equipment, including but not limited to --Equipment for Deep-sea Exploration -- Autonomous Underwater Vehicle Smart Material, including but not limited to --Special Metal Functional Materials --Advanced Composite Materials --Material Forming Technology.