Article

Researchers synthesized zirconia toughened alumina (ZTA) composites for cutting inserts in machining Aluminum alloy 5052 using a co-precipitation process and powder metallurgy, adhering to ISO SNUN 120,408 standards. The study identified key mechanisms influencing machining responses, including softening, chip flow, and shearing area, which affected cutting force, surface roughness, noise, and vibration signals.

Noise signals showed potential for monitoring cutting performance without direct contact, with depth of cut being the most influential factor. The optimal cutting conditions were determined to be a cutting speed of 750 rpm, feed rate of 0.16 mm/rev, and depth of cut of 1 mm, correlating cutting force with noise signal.