TY - JOUR
T1 - Comprehensive study on machinability of sustainable and conventional fibre reinforced polymer composites
AU - Ismail, Sikiru
AU - Dhakal, Hom Nath
AU - Popov, Ivan Eugeniev
AU - Beaugrand, Johnny
N1 - No embargo period. Open access journal - published version of article given a CC-BY-NC-ND licence.
PY - 2016/12
Y1 - 2016/12
N2 - The conventional homogeneous materials can no longer effectively satisfy the growing demands on product capabilities and performance, due to the advancement in products design and materials engineering. Therefore, the fibre reinforced composites (FRCs) with better properties and desirable applications emerged. These enhanced qualities of the FRCs have emphasized the need for analysing their machinability for further improvement of performance. Hence, this paper presents a comprehensive investigation on the machinability effects of drilling parameters (feed rate, cutting speed and thrust force), drill diameters and chips formation mainly on delamination and surface roughness of hemp fibre reinforced polymer (19/HFRP) and carbon fibre reinforced polymer (MTM 44-1/CFRP) composite laminates, using high speed steel (HSS) drills under dry machining condition. The results obtained depict that an increase in feed rate and thrust force caused an increase in delamination and surface roughness of both samples, different from cutting speed. Also, increased drill diameter and types of chips formation caused an increase in both delamination and surface roughness of both samples, as the material removal rate (MRR) increased. Evidently, the minimum surface roughness and delamination factor of the two samples for an optimal drilling are associated with feed rates of 0.05–0.10 mm/rev and cutting speed of 30 m/min.
AB - The conventional homogeneous materials can no longer effectively satisfy the growing demands on product capabilities and performance, due to the advancement in products design and materials engineering. Therefore, the fibre reinforced composites (FRCs) with better properties and desirable applications emerged. These enhanced qualities of the FRCs have emphasized the need for analysing their machinability for further improvement of performance. Hence, this paper presents a comprehensive investigation on the machinability effects of drilling parameters (feed rate, cutting speed and thrust force), drill diameters and chips formation mainly on delamination and surface roughness of hemp fibre reinforced polymer (19/HFRP) and carbon fibre reinforced polymer (MTM 44-1/CFRP) composite laminates, using high speed steel (HSS) drills under dry machining condition. The results obtained depict that an increase in feed rate and thrust force caused an increase in delamination and surface roughness of both samples, different from cutting speed. Also, increased drill diameter and types of chips formation caused an increase in both delamination and surface roughness of both samples, as the material removal rate (MRR) increased. Evidently, the minimum surface roughness and delamination factor of the two samples for an optimal drilling are associated with feed rates of 0.05–0.10 mm/rev and cutting speed of 30 m/min.
KW - fibre reinforced composites (FRCs)
KW - machinability
KW - drilling parameters
KW - delamination
KW - surface roughness
KW - optimal drilling
U2 - 10.1016/j.jestch.2016.07.010
DO - 10.1016/j.jestch.2016.07.010
M3 - Article
SN - 2215-0986
VL - 19
SP - 2043
EP - 2052
JO - Engineering Science and Technology, an International Journal
JF - Engineering Science and Technology, an International Journal
IS - 4
ER -