Affiliation:
1. Department of Mechanical and Industrial Engineering Technology, University of Johannesburg, Doornfontein, Johannesburg 2028, South Africa
Abstract
The present research investigated the turning of AZ31B magnesium alloy in a dry environment using carbide tool inserts coated with tungsten carbonitride (TiCn) and thin alumina (Al2O3). A Box–Behnken design based on fifteen experiments showed a proportional increasing trend of flank wear with all three machining parameters, i.e., cutting speed, feed rate, and depth of cut. The most influential parameter is the cutting speed. A maximum flank wear of 299.34 µm due to excessive adhesion of work material on the tool face was observed at a high cutting speed. Machining at low speed resulted in a significant reduction in tool wear due to less chipping. The tool wear and chip morphology study confirmed the results.
Subject
Industrial and Manufacturing Engineering,Mechanical Engineering,Mechanics of Materials
Reference34 articles.
1. Dobrzanski, L.A., Bamberger, M., and Totten, G.E. (2020). Magnesium and Its Alloys-Technology and Applications, CRC Press.
2. Moosbrugger, C. (2017). Engineering Properties of Magnesium Alloys, ASM International.
3. Thakur, B., Barve, S., and Pesode, P. (2023). Investigation on mechanical properties of AZ31B magnesium alloy manufactured by stir casting process. J. Mech. Behav. Biomed. Mater., 13.
4. Tribological effects of carbon nanotubes on magnesium alloy AZ31 and analyzing aging effects on CNTs/AZ31 composites fabricated by stir casting process;Abbas;Tribol. Int.,2020
5. The microstructure and mechanical properties of AZ31 magnesium alloy aircraft brackets produced by a new forging technology;Gontarza;Procedia Manuf.,2015