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中文摘要：
机械加工系统量大面广，能量效率低，节能潜力和环境减排潜力巨大，并且涉及的科学问题多，因此，近年来对其能量效率问题的研究正在国际上迅速兴起。总结机械加工系统能量效率的广义内涵；对机械加工系统能量效率的研究现状进行总体概述和分类总结及分析：在此基础上，总结和提出由三类对象（机床、工件和系统）、五类基础技术问题（能耗环节和能耗组件能效问题、能量消耗与能量效率建模问题、机床与工件能量效率特性问题、能量效率评价问题和能量效率监控与管理问题）、两类功能技术（机械加工系统高能效优化运行技术和高能效机床优化设计技术）和两大目标（提升加工系统能量效率和开发高能效机床）组成的机械加工系统能量效率研究内容体系框架；最后提出和论述机械加工系统能量效率研究的5点发展趋势，即能量效率建模集成化、能量效率评价平台化、工件任务能耗定额化、系统运行能效最优化和机床设计能效综合化等。
英文摘要：
Machining systems are in enormous quantity and the potentiality for energy-saving and emission-reduction to environment is great, which also involves lots of scientific problems, so that a number of studies on energy efficiency of machining systems are being done on the international scene in recent years. The extended connotation of energy efficiency of machining systems is summarized firstly. The state of the art of energy efficiency research on machining systems is investigated through the lenses of general overview and category of research objects. Based on the review, a content architecture framework of energy efficiency research on machining system is advanced, which includes three objects （machine tools, workpieces and system）, five basic technology issues （the energy efficiency of energy consumption links and energy consumption components, the modeling of energy consumption and energy efficiency, the energy efficiency characteristics of machine tools and workpieces, the evaluation of energy efficiency, and the energy efficiency monitoring and management of machining systems）, two kinds of functional techniques （high-energy-efficiency operation of machining system and high-energy-efficiency design of machine tools） and two objectives （improve the energy efficiency on machining system and develop high-energy-efficiency machine tool）. Finally, the future trends of the energy efficiency research for machining system are concluded, which can be detailed as integrated modeling of energy efficiency, platform construction of energy efficiency assessment, energy consumption quota of machining task, energy efficiency optimization during the operation of machining systems and energy efficiency integration duringthe design of machine tools.
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