7 research outputs found
Process parameters optimization on machining force and delamination factor in milling of GFRP composites using grey relational analysis
313-320<span style="font-size:11.0pt;mso-bidi-font-size:
10.0pt;font-family:" times="" new="" roman","serif";mso-fareast-font-family:"times="" roman";="" mso-ansi-language:en-gb;mso-fareast-language:en-us;mso-bidi-language:ar-sa"="" lang="EN-GB">In
this study, the optimization of process parameters for milling of glass fiber
reinforced polymer (GFRP) composites using grey relational analysis has been
investigated. Experiments are conducted using helix angle, spindle speed, feed
rate, depth of cut and fiber orientation angle as typical process parameters.
The grey relational analysis (GRA) is adopted to obtain grey relational grade
for milling process with multiple characteristics namely machining force and
delamination factor. Analysis of variance (ANOVA) is performed to get the
contribution of each parameter on the performance characteristics and it is
observed that fiber orientation angle and feed rate are the most significant
process parameters that affect the milling of GFRP composites. The experimental
results reveal that, the helix angle of 25o, spindle speed of
3000 rpm, feed rate of 500 mm/min, depth of cut of 1 mm and fiber orientation
angle of 15o is the optimum combination for lower machining force
and lower delamination factor. The experimental results for the optimal setting
show that there is considerable improvement in the process.</span