Abstract:

The machinability of Ti6Al4V alloy, the processing parameters with ultrasonic and conventional micro milling, and the effects of different cooling/lubrication methods on the chip thickness ratio and chip form were investigated experimentally in this study. While this research was being carried out, in experimental studies, dry machining under 0.02 mm constant depth of cut, 0.66 mm/s constant feed and 20,000, 40,000 and 60,000 rpm speed processing conditions, nano Al2O3 particle added borax-ethylene glycol mixture and olive oil-borax-ethylene glycol mixture The minimal amount of lubrication (MMY) method with nano-cutting fluid containing 50-100 micrometer size Al2O3 used carbide and TiSiN coated carbide cutting tools. In ultrasonic micro milling, two different vibration frequencies (20 and 30 kHz) of constant amplitude were applied to the cutting tool. Discontinuous chip form was obtained in all experimental studies. It was determined that the cooling method and the cutting tool had no effect on the chip form.

Keywords: