Analysis and Modeling of Surface Roughness in Powder Mix EDM and Pure EDM Using Central Composite Design

Conventional surface modification methods, such as ion insertion and laser melting, have recently seen growing importance in the innovative usage of electrical discharge machining process (EDM) a competitive substitute. Surface composition properties are affected by several factors, including erosion work materials tool during process, well formation plasma channels from vaporized materials. This indicates that, under certain conditions, deliberate transfer may be possible using either composite electrode scattering metallic powders dielectric or combination two. However, traditional has not been very successful process. Although it considered, expanding research into use powder additives through EDM techniques to enhance level is lacking. In addition, pulse interval included existing works that examine impact technique parameters on modification. Because this, thorough optimization characterize connection between independent variables control parameters. To take full advantage benefits offered EDM, necessary learn more about missing links its desired outcomes, whether alloying feasible what controls should used for various involved. The purpose this study was assess efficiency EDM-based stainless steel Tantalum Carbide (TaC) an additive measuring resulting surfaces' roughness (SR). It found RaPMEDM 11 recorded at current 5A on-time 6.30 off-time 7.00 with concentration 25g/L. easy predict controlling factor (A) (B). At higher 7.25A, showed decrease slightly. result justifies TaC starts modify high current. case without RaEDM, maximum 5 A, 6.26 μs, 7 RaEDM μm. provided highest Ra compared RaPMEDM.