Open AccessMathematical Approach for the Determination of the Surface Roughness in the Milling of Poly-Ether-Ether-Cethone (PEEK)
Author(s) -
M. P. Calvo-Correa,
Carlos Julio Cortés-Rodríguez,
Julián Camargo
Publication year - 2022
Publication title -
international journal of emerging trends in engineering research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.218
H-Index - 14
ISSN - 2347-3983
DOI - 10.30534/ijeter/2022/091022022
Subject(s) - peek , machining , surface roughness , materials science , surface finish , raster graphics , conical surface , spiral (railway) , mechanical engineering , surface (topology) , composite material , mathematics , engineering drawing , geometry , metallurgy , computer science , engineering , artificial intelligence , polymer
This research aims to determine the behavior of the surface roughness parameters Ra, Rq and Rz in the milling of poly-ether-ether-ketone PEEK, in terms of the machining variables: cutting speed feed rate and the machining strategy. To solve this problem, a response surface study was made with a central design composed of three replicates per point to obtain a surface equation that determines the expected roughness value based on the velocity values of Cutting speed and fate rate. This model was repeated for each machining strategy analyzed: Raster and Spiral. To find the correct values of Rq and Rzin, the manufacturer could find desirable values; it could be for minor friction pieces or better shape forms. This investigation found that the value of Rq and Rz in milling machining with a Raster and Spiral trajectory increases with increasing feed rate and decreasing with cutting speed. Likewise, it was observed that the Raster technique obtains higher roughness values than by Spiral.