Fiber-reinforced composites have become the preferred material in the fields of aviation and aerospace because of their high-strength performance in unit weight.The composite components are manufactured by near net-shape and only require finishing operations to achieve final dimensional and assembly tolerances.Milling and grinding arise as the preferred choices because of their precision processing.Nevertheless,given their laminated,anisotropic,and heterogeneous nature,these materials are considered difficult-to-machine.As undesirable results and challenging breakthroughs,the surface damage and integrity of these materials is a research hotspot with important engineering significance.This review summarizes an up-to-date progress of the damage formation mechanisms and suppression strategies in milling and grinding for the fiber-reinforced composites reported in the literature.First,the formation mechanisms of milling damage,including delamination,burr,and tear,are analyzed.Second,the grinding mechanisms,covering material removal mechanism,thermal mechanical behavior,surface integrity,and damage,are discussed.Third,suppression strategies are reviewed systematically from the aspects of advanced cutting tools and technologies,including ultrasonic vibration-assisted machining,cryogenic cooling,minimum quantity lubrication(MQL),and tool optimization design.Ultrasonic vibration shows the greatest advantage of restraining machining force,which can be reduced by approximately 60％compared with conventional machining.Cryogenic cooling is the most effective method to reduce temperature with a maximum reduction of approximately 60％.MQL shows its advantages in terms of reducing friction coefficient,force,temperature,and tool wear.Finally,research gaps and future exploration directions are prospected,giving researchers opportunity to deepen specific aspects and explore new area for achieving high precision surface machining of fiber-reinforced composites.

Teng GAO;Yanbin ZHANG;Changhe LI;Yiqi WANG;Yun CHEN;Qinglong AN;Song ZHANG;Hao Nan LI;Huajun CAO;Hafiz Muhammad ALI;Zongming ZHOU;Shubham SHARMA

School of Mechanical and Automotive Engineering,Qingdao University of Technology,Qingdao 266520,China;School of Mechanical Engineering,Dalian University of Technology,Dalian 116024,China;Chengdu Tool Research Institute Co.,Ltd.,Chengdu 610500,China;School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;School of Mechanical Engineering,Shandong University,Jinan 250061,China;School of Aerospace,University of Nottingham Ningbo China,Ningbo 315100,China;School of Mechanical Engineering,Chongqing University,Chongqing 400044,China;Mechanical Engineering Department,King Fahd University of Petroleum and Minerals,Dhahran 31261,Saudi Arabia;Hanergy(Qingdao)Lubrication Technology Co.,Ltd.,Qingdao 266100,China;Department of Mechanical Engineering,IK Gujral Punjab Technical University,Punjab 144603,India

机械工程前沿

[1]Teng GAO;Yanbin ZHANG;Changhe LI;Yiqi WANG;Yun CHEN;Qinglong AN;Song ZHANG;Hao Nan LI;Huajun CAO;Hafiz Muhammad ALI;Zongming ZHOU;Shubham SHARMA-.Fiber-reinforced composites in milling and grinding:machining bottlenecks and advanced strategies)[J].机械工程前沿,2022(02):1-35

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