Wear resistance of carbide tools with textured flank-face in dry cutting of green alumina ceramics

Characterization of green Al2O3 ceramics surface machined by tools with textures on flank‐face in dry turning

“…Due to the small tool‐chip contact length on rake‐face of tools during cutting of green Al 2 O 3 ceramics, tool failure is primarily because of serious abrasive‐wear happening on the flank‐face of tools . Therefore, tool wear in experiments was mainly focused on flank‐wear in turning green ceramics.…”

“…The microstructure of the green body was quite homogeneous and there were few bubbles as shown in Figure a. Based on the enlarged SEM micrograph from Figure b, it could be concluded that there had no crystal boundary forming between Al 2 O 3 particles, the binding forces were just cohesive force generated by paraffin and mechanical entanglement . The density, hardness, flexural strength etc.…”

“…Nanosecond laser was applied to fabricate micro‐scaled textures onto the flank‐face of tools; the detailed information could be consulted literature . The parameters were employed scanning power of 19.0 W, scanning speed of 35.0 mm/s, and pulse repetition frequency of 20.0 KHz.…”

“…Engineering or advanced ceramics are widely applied in industrial parts because of extremely good properties . For example, these ceramics can be found in bearings, turbine blades, heat engine components, and cutting tools . Nevertheless, there were difficulties in the production of ceramics because of low toughness and high hardness .…”

“…Due to the need for ceramic components with good surface integrity and complex shape, the processing of green Al 2 O 3 ceramics is now becoming a substitute approach, which can take place of the machining of fired ceramics directly . Higher material removal, prominently lower needs, and less induced damages have been the major advantage on green ceramics processing in comparison of sintered ceramics.…”