Investigation of machining parameters for the multiple response optimization of micro electrodischarge milling
This paper investigated the influence of three micro electrodischarge milling process parameters, which were feed rate, capacitance, and voltage. The response variables were average surface roughness (Ra), maximum peak-to-valley roughness height (Ry), tool wear ratio (TWR), and material removal...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer
2009
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/12512/ http://irep.iium.edu.my/12512/ http://irep.iium.edu.my/12512/ http://irep.iium.edu.my/12512/4/Investigationofmachiningparameters12512.pdf |
| Summary: | This paper investigated the influence of three
micro electrodischarge milling process parameters, which
were feed rate, capacitance, and voltage. The response
variables were average surface roughness (Ra), maximum
peak-to-valley roughness height (Ry), tool wear ratio
(TWR), and material removal rate (MRR). Statistical models
of these output responses were developed using three-level
full factorial design of experiment. The developed models
were used for multiple-response optimization by desirability
function approach to obtain minimum Ra, Ry, TWR, and
maximum MRR. Maximum desirability was found to be
88%. The optimized values of Ra, Ry, TWR, and MRR were
0.04, 0.34 μm, 0.044, and 0.08 mg min−1, respectively for
4.79 μm s−1 feed rate, 0.1 nF capacitance, and 80 V
voltage. Optimized machining parameters were used in
verification experiments, where the responses were found
very close to the predicted values. |
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