Experimental study on energy consumption of computer numerical control machine tools

JOURNAL OF CLEANER PRODUCTION

卷:112

Article

Lv, Jingxiang^1,3  Tang, Renzhong¹  Jia, Shun^1,4  Liu, Ying² 

[1] Zhejiang Univ, Ind Engn Ctr, Zhejiang Prov Key Lab Adv Mfg Technol, Hangzhou 310027, Zhejiang, Peoples R China

[2] Cranfield Univ, Sch Aerosp Transportat & Mfg, Cranfield MK43 0AL, Beds, England

[3] Xian Res Inst Nav Technol, Xian 710068, Shaanxi, Peoples R China

[4] Shandong Univ Sci & Technol, Qingdao 266590, Peoples R China

关键词: Energy consumption;    Non-cutting motions;    Material removal;    Computer numerical control machine tools;   

DOI  :  10.1016/j.jclepro.2015.07.040

来源: Elsevier

【 摘 要 】

Machining processes are responsible for substantial environmental impacts due to their great energy consumption. Accurately characterizing the energy consumption of machining processes is a starting point to increase manufacturing energy efficiency and reduce their associated environmental impacts. The energy calculation of machining processes depends on the availability of energy supply data of machine tools. However, the energy supply can vary greatly among different types of machine tools so that it is difficult to obtain the energy data theoretically. The aim of this research was to investigate the energy characteristics and obtain the power models of computer numerical control (CNC) machine tools through an experimental study. Four CNC lathes, two CNC milling machines and one machining center were selected for experiments. Power consumption of non-cutting motions and material removal was measured and compared for the selected machine tools. Here, non-cutting motions include standby, cutting fluid spraying, spindle rotation and feeding operations of machine tools. Material removal includes turning and milling. Results show that the power consumption of non-cutting motions and milling is dependent on machine tools while the power consumption of turning is almost independent from the machine tools. The results imply that the energy saving potential of machining processes is tremendous. (C) 2015 Elsevier Ltd. All rights reserved.

【 授权许可】

Free