Open AccessOptimization of Turning Parameters of Cryogenic Soaked AZ91 Magnesium Alloy using TOPSIS coupled Taguchi Technique
Author(s) -
K. Gunasekaran,
Pratap Kumar,
R. Thanigaivelan,
R. M. Arunachalam,
. Shanmugam
Publication year - 2021
Publication title -
journal of new materials for electrochemical systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.496
H-Index - 42
eISSN - 1480-2430
pISSN - 1480-2422
DOI - 10.14447/jnmes.v24i1.a09
Subject(s) - taguchi methods , topsis , magnesium alloy , magnesium , materials science , machining , surface roughness , metallurgy , mechanical engineering , alloy , orthogonal array , composite material , mathematics , engineering , operations research
Magnesium alloys is a lightweight material establishing scope in various fields such as aerospace and automobile. Moreover, magnesium alloys are also considered as a hydrogen storage materials. In order to understand the machining behaviour of magnesium alloy a detail research is planned. In this research the turning experiments are conducted on AZ91 magnesium alloy using the L9 orthogonal array (OA) experimental design. Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) coupled with Taguchi and Analysis of Variance (ANOVA) methods are used to analysis the experiments. The influence of cryogenic soaking duration, feed, speed and depth of cut on cutting temperature, surface roughness and cutting force were studied. Based on the TOPSIS analysis the optimal combination for the better response is cryogenic soaking time of 30 min, speed of 500 rpm, feed of 40 mm/min and depth of cut of 0.3mm. As per F value the depth of cut shows the 0.4822 and next best factors are cutting speed and feed rate. The chip analysis reveals that the cryogenic soaking duration level of 60 min is found to reduce the self-ignited chips.