Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jmatprotec.2021.117054
Title: Ultra-precision micro-cutting of maraging steel 3J33C under the influence of a surface-active medium
Authors: Zheng, Zhongpeng
Lee, Yan Jin
Zhang, Jiayi 
Jin, Xin
Wang, Hao 
Keywords: Maraging steel
Ultra-precision machining
Mechanochemical effect
Micro-cutting
Surface integrity
Machinability
Issue Date: 1-Jun-2021
Publisher: ELSEVIER SCIENCE SA
Citation: Zheng, Zhongpeng, Lee, Yan Jin, Zhang, Jiayi, Jin, Xin, Wang, Hao (2021-06-01). Ultra-precision micro-cutting of maraging steel 3J33C under the influence of a surface-active medium. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 292. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jmatprotec.2021.117054
Abstract: The excellent mechanical properties of maraging steel 3J33C make it desirable for a wide spectrum of high-strength applications, which would also mean that it is difficult to machine. The application of surface-active media onto the pre-machined surface is explored to improve the machinability of this high-strength material. This mechanochemical effect, named after its discoverer as the Rehbinder effect, was implemented using a marker ink to reduce machining forces and deformed chip thicknesses, and significantly improve the machined surface quality. Machined subsurface microstructure characterization reveals the occurrence of grain refinement with evenly distributed orientations and the microstructure texture components when cutting with the mechanochemical influence. This work also demonstrates with an analytical model the effectiveness of the Rehbinder effect when coupled with the tool-edge radius effect. Lastly, numerical simulations are developed for chip evolution and cutting forces in machining a polycrystalline workpiece material with the mechanochemical influence by modifying the fracture energy.
Source Title: JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
URI: https://scholarbank.nus.edu.sg/handle/10635/191831
ISBN: 18734774
ISSN: 09240136
DOI: 10.1016/j.jmatprotec.2021.117054
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