Development Research on Integrating CNC Machine Tool with Plasma for Online Surface Heat Treatment

<table class="table-group" id="tab7"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left">Factor level</td><td class="align_center">1.633</td><td class="align_center">1</td><td class="align_center">0</td><td class="align_center">−1</td><td class="align_center">−1.633</td></tr><tr><td class="align_left">Spindle speed (rpm) (A)</td><td class="align_center">168</td><td class="align_center">200</td><td class="align_center">250</td><td class="align_center">300</td><td class="align_center">331</td></tr><tr><td class="align_left">Feed rate (mm/rev) (B)</td><td class="align_center">0.07</td><td class="align_center">0.1</td><td class="align_center">0.15</td><td class="align_center">0.2</td><td class="align_center">0.23</td></tr><tr><td class="align_left">Current (A) (C)</td><td class="align_center">64</td><td class="align_center">60</td><td class="align_center">70</td><td class="align_center">80</td><td class="align_center">86</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Optimization experiment factors and levels.</div>

Advances in Materials Science and Engineering

tab7

Table 7

Table 7: Development Research on Integrating CNC Machine Tool with Plasma for Online Surface Heat Treatment 