Effects of Cutter Parameters on Surface Roughness of Fiberboard and Energy Consumption of CNC Machine

Aim of study: The aim of this study was to determine the effects of cutter parameters on the energy consumption of CNC machine, and surface roughness of medium density fiberboard (MDF).
Material and methods: Experiments were conducted using a three-axis CNC router. The energy consumption and surface roughness values were measured using a wattmeter (TT-Technic PM 001) and roughness tester (Mitutoyo SJ 210), respectively. The values of the Ra, Rq, and Rz roughness parameters, and energy consumption were determined.
 Main results: The surface roughness increased with increases in the step over and feed rate, whereas the energy consumption decreased. In addition, the energy consumption increased when a high spindle speed was used. When the spindle speed is increased from 8000 rpm to 16000 rpm, the energy consumption increases by 154%. When the stepover is increased from 20% to 60%, energy consumption is reduced by 63%. When the feed rate is increased from 3 m/min to 7 m/min, the energy consumption is reduced by 60%.
 Highlights: The energy consumption increased as the step over and feed rate decreased. The energy consumption increased as the spindle speed increased. The surface roughness increased with the step over and feed rate