Taguchi Robust Design for Optimizing Surface Roughness of Turned AISI 1045 Steel Considering the Tool Nose Radius and Coolant as Noise Factors

<table class="table-group" id="tab6"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Outer array combination</td><td class="align_center">Regression equation</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">NR = 0.4</td><td class="align_center" rowspan="2">Ra = 1.949 − 0.00767<i>S</i> − 1.181DOC + 2.34FR + 11.34DOC ∗ FR</td></tr><tr><td class="align_left">Coolant: on</td></tr><tr><td class="align_left">NR = 0.4</td><td class="align_center" rowspan="2">Ra = 11.45 − 0.1197<i>S</i> − 8.36DOC + 0.44FR + 0.000373<i>S</i><sup>2</sup> + 3.17DOC<sup>2</sup> + 0.0279<i>S</i> ∗ DOC + 11.87DOC ∗ FR</td></tr><tr><td class="align_left">Coolant: off</td></tr><tr><td class="align_left">NR = 0.8</td><td class="align_center" rowspan="2">Ra = 10.63 − 0.1268<i>S</i> − 5.462DOC + 5.291FR + 0.000383<i>S</i><sup>2</sup> + 0.03777S ∗ DOC</td></tr><tr><td class="align_left">Coolant: on</td></tr><tr><td class="align_left">NR = 0.8</td><td class="align_center" rowspan="2">Ra = 4.654 − 0.02079<i>S</i> − 3.65DOC + 6.342FR + 2.98DOC<sup>2</sup></td></tr><tr><td class="align_left">Coolant: off</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Regression equations at the four conditions of the L4 outer array.</div>

Advances in Materials Science and Engineering

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Table 6

Table 6: Taguchi Robust Design for Optimizing Surface Roughness of Turned AISI 1045 Steel Considering the Tool Nose Radius and Coolant as Noise Factors 

Table 6 | Taguchi Robust Design for Optimizing Surface Roughness of Turned AISI 1045 Steel Considering the Tool Nose Radius and Coolant as Noise Factors 