Some Investigations Into Multi-Objective Optimization of Wire Electro-Discharge Machining of Al/SiCp Composites

2007 ◽  
Author(s):  
N. G. Patil ◽  
P. K. Brahmankar ◽  
L. G. Navale
Keyword(s):  
Metal Matrix Composites ◽  
Grey Relational Analysis ◽  
Metal Matrix ◽  
Cutting Speed ◽  
Kerf Width ◽  
Matrix Composites ◽  
Multi Objective Optimization ◽  
Relational Analysis ◽  
Electro Discharge Machining ◽  
Grey Relational

Non-traditional process like wire electro-discharge machining (WEDM) is found to show a promise for machining metal matrix composites (MMCs). However, the machining information for the difficult-to-machine particle-reinforced material is inadequate. This paper is focused on experimental investigation to examine the effect of electrical as well as non-electrical machining parameters on performance in wire electro-discharge machining of metal matrix composites (Al/SiCp). Taguchi orthogonal arrays were employed to study the effects of combinations of voltage, current, pulse on-time, off-time, and wire speed and wire tension on kerf width and cutting speed. Voltage, current, and on-time were found to have significant effect on cutting speed and kerf width. The optimum machining parameter combinations were obtained for cutting speed and kerf width separately. Further, multi-objective optimization was done using Taguchi-Grey relational analysis. The process has been improved with the aid of Grey relational analysis and Taguchi orthogonal array. The results have been verified with confirmation experiments.

On the Optimisation Into Wire Electro-Discharge Machining of Al/Al2O3P Composites

2007 ◽  
Author(s):  
N. G. Patil ◽  
P. K. Brahmankar ◽  
L. G. Navale
Keyword(s):  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Cutting Speed ◽  
Kerf Width ◽  
Feed Speed ◽  
Machining Parameters ◽  
Matrix Composites ◽  
Electro Discharge Machining ◽  
Pulse On Time ◽  
Machining Parameter

Non-traditional process like wire electro-discharge machining (WEDM) is found to show a promise for machining metal matrix composites (MMCs). However, the machining information for the difficult-to-machine particle-reinforced material is inadequate. This paper is focused on experimental investigation to examine the effect of electrical as well as nonelectrical machining parameters on performance in wire electro-discharge machining of metal matrix composites (Al/Al2O3p). Taguchi orthogonal array was used to study the effect of combination of reinforcement, current, pulse on-time, off-time, servo reference voltage, maximum feed speed, wire speed, flushing pressure and wire tension on kerf width and cutting speed. Reinforcement percentage, current, on-time was found to have significant effect on cutting rate and kerf width. The optimum machining parameter combinations were obtained for cutting speed and kerf width separately.

Taguchi Grey Relational Analysis of Dry Sliding Wear Behaviour of Annealed AA7075-TiC Metal Matrix Composites

2014 ◽  
Vol 541-542 ◽  
pp. 258-262 ◽  
Author(s):  
S. Baskaran ◽  
V. Anandakrishnan ◽  
Muthukannan Durai Selvam ◽  
S. Raghuraman ◽  
V.M. Illayaraja Muthaiyaa
Keyword(s):  
Wear Rate ◽  
Metal Matrix Composites ◽  
Grey Relational Analysis ◽  
Metal Matrix ◽  
Sliding Wear ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Matrix Composites ◽  
Relational Analysis ◽  
Grey Relational

The optimization of dry sliding wear process parameters of in-situ aluminium based metal matrix composites to obtain multiple objectives to minimize wear rate, specific wear rate, co-efficient of friction and maximize wear resistance was attempted by Taguchi Grey Relational Analysis. Moreover to identify the significance of the parameters, a statistical analysis was performed using analysis of variance. Based on the analysis, the sliding speed was identified as the major contributor with 71.41% followed by percentage of reinforcement with 8.13% and other parameters load and sliding distance are found to be insignificant. The optimum parameters identified by the Grey Relational Analysis are verified through experimental confirmation test.

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