The 21st International Conference “Man and Working Environment”
SAFETY ENGINEERING & MANAGEMENT SCIENCE, INDUSTRY, EDUCATION (SEMSIE 2025)   
PROCEEDINGS OF PAPERS 
25-26 September 2025, SOKOBANJA, SERBIA  

Milan Trifunović , Miloš Madić , Saša S. Nikolić , Marko Milojković 

ORIGINAL SCIENTIFIC PAPER

ANALYSIS OF CO2 EMISSIONS IN LONGITUDINAL MEDIUM TURNING OF 42CrMo4 STEEL

DOI: 10.46793/SEMSIE25.245T
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Abstract:

In the context of sustainable, eco-friendly machining, in addition to standard process performances, through which the suitability of selected parameters is assessed, analysis of the process environmental and sustainable performances is often considered. With this in mind the present study aims at analysing CO2 emissions per volume of material removed in dry longitudinal single-pass medium turning of low-alloyed steel 42CrMo4 using a coated carbide cutting tool. Full factorial design was applied to arrange the main cutting parameters, i.e. depth of cut, feed rate and cutting speed, at three levels. For each experimental trial CO2 emissions data were obtained using a tool and cutting data recommendation system of the cutting tool manufacturer (Walter GPS). The analysis of results involved the analysis of main, interaction and quadratic effects, determination of statistically significant effects and development of non-linear model for the prediction of CO2 emissions per volume of material removed. In addition, the optimized cutting conditions for minimization of CO2 emissions were determined.

Keywords:

Turning, CO2 emissions, full factorial design, 42CrMo4 steel, prediction

ACKNOWLEDGEMENTS:

This research was financially supported by the Ministry of Science, Technological Development and Innovation of the Republic of Serbia (Contract No. 451-03-137/2025-03/200109). This paper was supported by the Ministry of Science, Technological Development and Innovation of the Republic of Serbia [Grant Number: 451-03-137/2025-03/ 200102].

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