Machining evaluation of a hybrid MQL-CO2 grinding technology |
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| Authors: | JA Sanchez I Pombo R Alberdi B Izquierdo N Ortega S Plaza J Martinez-Toledano |
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| Institution: | 1. Faculty of Engineering of Bilbao, University of the Basque Country, Alameda de Urkijo s/n, 48013 Bilbao, Spain;2. Faculty of Technical Engineering of Eibar, University of the Basque Country, Avda Otaola 26, 20600 Eibar, Spain;3. Ideko Technological Center, Arriaga Kalea 2, 20870 Elgoibar, Spain;1. School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran;2. Sustainable Manufacturing Systems Research Laboratory (SMSRL), School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran;1. School of Mechanical Engineering, Qingdao University of Technology, 266520 Qingdao, China;2. Department of Biomedical Engineering, University of Southern California, CA90089–1111, Los Angeles, USA;3. Shanghai Jinzhao Energy Saving Technology Co., Ltd., 200436 Shanghai, China;4. State Key Laboratory of Mechanical Transmission, Chongqing University, 400044 Chongqing, China;1. School of Mechanical Engineering, Qingdao University of Technology, 266520 Qingdao, China;2. Shanghai Jinzhao Energy Saving Technology CO.LTD, 200436 Shanghai, China;3. Shandong Outailong Heavy Industry Co., Ltd., 262501 Weifang, China;1. School of Mechanical Engineering, Qingdao University of Technology, 266520 Qingdao, China;2. Shanghai Jinzhao Energy Saving Technology Co.Ltd, 200436 Shanghai, China;3. College of Mechanical and Electrical Engineering, Qingdao Binhai University, 266520 Qingdao, China |
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| Abstract: | Although there are already successful industrial experiences in other machining industries with the elimination of coolants, this is not so in the grinding industry due to the large amounts of generated heat that must be evacuated from the contact zone. In this work, a new approach to the elimination of fluids in grinding is presented. The technology is based on the use of a hybrid Minimum Quantity of Lubricant (MQL)-low temperature CO2 system that reduces lubrication consumption. Abrasive grits are protected by the layer of frozen oil, resulting in a significant improvement in grinding wheel life and surface quality of the machined component. Although the cooling action is reduced with respect to the conventional coolant, no thermal damage was observed on the workpiece. |
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