In this paper, the influence of machining parameters on the change of temperature on the workpiece surface during the drilling process was investigated. The aim was to find out to what extent the cutting speed, the feed and the amount of refrigerant affect the temperature flow during the process. For the purpose of the research, a measuring point was set up to capture the temperature on the lower surface of the workpiece during drilling. The captured data were computer processed and presented in the form of graphs. It was found that machining parameters affect the temperature flow. The graphs clearly show an increase in temperature at each experiment. Temperature flow curves were compared with each other and it was discussed why differences between the experiments occurred. It was found that at higher cutting speeds, the temperature rises faster and reaches a higher final value. In the case of feed rate, the influence is similar.
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