Research & Gear Hobbing Process Carbon Emission Quantitative Analysis Method Of CNC Gear Hobbing Machine

Low carbon manufacturing has aroused attention among scientists,corporate R & D and academic.Systematically master the modern CNC machining system carbon emissions characteristics is an important foundation of its low carbon operation and the development of green CNC machining equipment.CNC machine tools are widely used in manufacturing,the environmental problems caused by machine tool processing are becoming increasingly serious.Currently there is less study on the low carbon running of modern NC machining system and other complex manufacturing systems when material and energy consumption are systematically considered.To solve the problem,a quantitative analysis method of carbon emission in machining process of NC hobbing machine is proposed.Firstly,based on the process of NC machining,the carbon emission boundary of NC hobbing process is studied from three dimensions: energy,material resources and waste.The calculation range of carbon emission in modern CNC hobbing process is defined,and the carbon emission boundary model of the system is established.The qualitative analysis of the carbon composition of the NC machining process is carried out,and the composition of various types of carbon emissions is established on the basis of classification research.Secondly,according to gear hobbing machining process has many carbon emissions way,the influencing factors are complex and the quantitative data is difficult to be counted.The effects of cutting amount,machined gear,machining tool,machining hobbing machine and cutting fluid are discussed.And the quantitative analysis method of carbon influencing factors was studied systematically.Select the part as an integrated carrier for multi-source carbon emissions,the parts processing process as the main line,to share all kinds of carbon emissions with parts and parts processing time as the unit.The multi-source carbon emission sharing model based on multi-subject hobbing process is established.Based on the results of qualitative analysis,a quantitative calculation model of carbon emission in hobbing process was established,complete a single gear quantitative calculation of carbon emissions.Then,according to the proposed gear hobbing process carbon emission quantitative calculation model,considering the complete time and processing quality constraints,a multi-objective optimization model is established,which takes gear hobbing spindle speed and feed as the variables,the carbon emission and finished cost as the optimization objectives.Genetic Algorithm is designed to solve the optimization model,which has improved the carbon emission at the same time reduced the processing cost.An simulation experiment case is performed to verify the feasibility of the carbon emission quantitative calculation model optimization method.Finally,the summary is presented,analyzes the shortcomings of the paper,and puts forward the future development prospect of carbon emission research in hobbing process.