A comparative study of characterization of machined surfaces of some commercial polymeric materials under varying machining parameters

Autor: Fahim Fazlullah, Mohammad Salim Kaiser, Sheikh Reaz Ahmed
Rok vydání: 2020
Předmět:
Zdroj: Journal of Mechanical Engineering, Automation and Control Systems. 1:75-88
ISSN: 2669-1361
2669-2600
DOI: 10.21595/jmeacs.2020.21643
Popis: A parametric study has been conducted on the characterization of machined surfaces of some commercially available polymeric materials structures obtained under surface finishing. More specifically, the major mechanical properties of the machined surface, namely, surface roughness, hardness, temperature, as well as chips deformation are evaluated under different machining conditions, and are analyzed in a comparative fashion for a number of commercial polymeric material samples that include Acrylic (Perspex), High Density Polyethylene (HDPE) and Unplasticized Polyvinyl Chloride (uPVC). The machining of the samples is realized through a standard horizontal shaper machine with HSS single point V-shaped cutting tool at different cutting speed and depth of cut. The measured results show that the surface properties of the polymeric materials are affected quite significantly by the change of machining parameters. Microstructures of the chips reveal that crack-like flaws are formed at higher cutting speeds and lower depths of cut.
Databáze: OpenAIRE