Investigation of the machinability of high purity molybdenum material by machining method

Molybdenum is a metal widely used in industry due to its superior properties such as high melting point, hardness, and wear resistance. However, due to these properties, it is known as a material that is difficult to machine. In this study, the machinability of high-purity molybdenum material using machining methods was investigated in terms of surface quality and energy consumption. Experimental studies indicate that suitable cutting parameters and tool selection are necessary to make the machinability of molybdenum easier. According to the results, the sample with heat treatment and ceramic cutting tool achieved the best average surface roughness of 4,71 μm. In terms of energy consumption, this same sample also had the lowest average with a power consumption of 4,20 kW. The most significant factor affecting surface roughness in all samples is the feed rate. The factor that most influences power consumption is the cutting speed. For machining heat-treated molybdenum material with ceramic and carbide cutting tools, the optimal cutting parameters for achieving minimum surface roughness and power consumption were calculated as a cutting speed of 1000 rpm, a feed rate of 0,05 mm/rev, and a cutting depth of 0,10 mm