Tool Wear Mechanism and Grinding Performance for Different Cooling-Lubrication Modes in Grinding of Nickel-Based Superalloys

被引：9
作者：
Liang, Chunyou [1 ]
Gong, Yadong [1 ]
Zhou, Linhu [2 ]
Qi, Yang [1 ]
Zhang, Huan [1 ]
Zhao, Jibin [3 ]
机构：
[1] Northeastern Univ, Sch Mech Engn & Automat, Shenyang 110819, Peoples R China
[2] ChangChun Railway Vehicles, Changchun 130062, Peoples R China
[3] Chinese Acad Sci, Shenyang Inst Automat, Technol Equipment & Intelligent Robot Lab, Shenyang 110169, Peoples R China
来源：
MATERIALS | 2023年 / 16卷 / 09期
基金：
中国国家自然科学基金;
关键词：
grinding; tool wear; cooling-lubrication; nickel-based superalloys; grinding performance; ELECTROPLATED DIAMOND WHEELS; MINIMUM QUANTITY LUBRICANT; WHEEL/WORKPIECE INTERFACE; SURFACE INTEGRITY; SILICON-NITRIDE; INCONEL; 718; MQL; NANOFLUIDS; TOPOGRAPHY; ALLOYS;
D O I：
10.3390/ma16093545
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Tool wear introduced during grinding nickel-based superalloys was identified as a significant factor affecting the production quality of aero-engine industries concerning high service performance and high precision. Moreover, uncertainties derived from the various cooling-lubrication modes used in grinding operations complicated the assessment of grinding preformation. Therefore, this work investigated the tool wear mechanisms in grinding nickel-based superalloys that adopted five cooling-lubrication modes and investigated how the wear behaviors affected grinding performance. Results showed that chip-deposits covered some areas on the tool surface under dry grinding and accelerated the tool failure, which produced the highest values of tangential force, 7.46 N, and normal force, 14.1 N. Wedge-shape fractures induced by indentation fatigue were found to be the predominant wear mechanism when grinding nickel-based superalloys under flood cooling mode. The application of minimum quantity lubrication-palm oil (MQL-PO), MQL-multilayer graphene (MQL-MG), and MQL-Al2O3 nanoparticles (MQL-Al2O3) formed lubricity oil-film on the tool surface, which improved the capacity of lubrication in the tool-workpiece contact zone and provided 37%, 30%, and 52% higher coefficient of friction than dry mode, respectively. The results of this study demonstrate that lubricated oil-film produced by MQL modes reduces the possibility of fractures of cubic boron nitride (CBN) grits to some extent.
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页数：17
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