In the machining processes, parameters like depth of cut \(d\) , cutting speed \(v\) and feed rate \(f\) are crucial in determining the optimal balance between productivity, quality, and sustainability. The aim of the study is to examine and minimize the impact of machining parameters on total processing timing, total energy consumption, and total cost production. The primary focus of this study will be on analyzing how energy consumption varies with changes in depth of cut during finishing phase. This approach enables a deeper understanding of energy efficiency within the machining process, aligning with the main goal of this study: reducing environmental impact while maintaining optimal performance and cost-effectiveness. To demonstrate in practical applicability the efficiency of proposed approach, it is applied to an illustrative example from the literature. This study has demonstrated positive results during finishing phase. Reducing the depth of cut and increasing the cutting speed led to lower energy consumption, reduced production costs, and shorter processing times, while maintaining high surface quality.