TY - GEN
T1 - Impact of Milling on Hardness and Optical Transmission of PMMA Lenses
T2 - 7th International Conference on Mechanical, Manufacturing and Plant Engineering, ICMMPE 2021
AU - Wambua, Job Maveke
AU - Mwema, Fredrick M.
AU - Tanya, Buddi
AU - Jen, Tien Chien
AU - Akinlabi, Esther T.
N1 - Publisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
PY - 2023
Y1 - 2023
N2 - This study evaluates the impacts of milling on the hardness and optical transmission of PMMA lenses using experimental and mathematical models. Three milling parameters, i.e., spindle speed, depth of cut, and feed rate, were evaluated. The machining levels were obtained from experimental trials. The experiments were designed using the Taguchi method, giving out 16 experiments. Sixteen workpieces were investigated for Shore D Hardness and optical transmission before and after milling, and the change was computed. The experimental analysis identified a reduction in Shore D Hardness and optical transmission after milling. The mathematical analyses using Taguchi analysis and ANOVA found out that for the absolute minimum change in Shore D Hardness, the milling parameters should be 5000 rpm (spindle speed), 0.3 mm (depth of cut), and 0.05 m/min (feed rate). Similarly, for the optical transmission, the parameters should be a spindle speed of 3750 rpm, a depth of cut of 1.2 mm, and a feed rate of 0.1 m/min. The analysis further identified the depth of cut to be the most dominant milling parameter toward the Shore D Hardness and optical transmission of PMMA lenses with a percentage impact of 12.77 and 42.51%, respectively. Thus, this study presents a model for conventional milling of PMMA for optical applications.
AB - This study evaluates the impacts of milling on the hardness and optical transmission of PMMA lenses using experimental and mathematical models. Three milling parameters, i.e., spindle speed, depth of cut, and feed rate, were evaluated. The machining levels were obtained from experimental trials. The experiments were designed using the Taguchi method, giving out 16 experiments. Sixteen workpieces were investigated for Shore D Hardness and optical transmission before and after milling, and the change was computed. The experimental analysis identified a reduction in Shore D Hardness and optical transmission after milling. The mathematical analyses using Taguchi analysis and ANOVA found out that for the absolute minimum change in Shore D Hardness, the milling parameters should be 5000 rpm (spindle speed), 0.3 mm (depth of cut), and 0.05 m/min (feed rate). Similarly, for the optical transmission, the parameters should be a spindle speed of 3750 rpm, a depth of cut of 1.2 mm, and a feed rate of 0.1 m/min. The analysis further identified the depth of cut to be the most dominant milling parameter toward the Shore D Hardness and optical transmission of PMMA lenses with a percentage impact of 12.77 and 42.51%, respectively. Thus, this study presents a model for conventional milling of PMMA for optical applications.
UR - http://www.scopus.com/inward/record.url?scp=85141705896&partnerID=8YFLogxK
U2 - 10.1007/978-981-19-3307-3_16
DO - 10.1007/978-981-19-3307-3_16
M3 - Conference contribution
AN - SCOPUS:85141705896
SN - 9789811933066
T3 - Lecture Notes in Mechanical Engineering
SP - 189
EP - 200
BT - Advances in Material Science and Engineering - Selected Articles from ICMMPE 2021
A2 - Emamian, Seyed Sattar
A2 - Awang, Mokhtar
A2 - Razak, Jeeferie Abd
A2 - Masset, Patrick J.
PB - Springer Science and Business Media Deutschland GmbH
Y2 - 29 November 2021 through 29 November 2021
ER -