11th World Congress on Mechanical, Chemical, and Material Engineering, MCM 2025, Paris, Fransa, 19 - 21 Ağustos 2025, (Tam Metin Bildiri)
Electrochemical machining has become the preferred precise deburring method for injector components with complex geometries that were machined by conventional techniques. However, the effect of machining time on deburring performance under fixed process conditions is still insufficiently explored in the literature. This study quantitatively evaluates the deburring efficiency of two exposure times—6 s and 12 s—while all electrical and electrolyte parameters are kept constant (80 A, 40 V, 125 mS cm⁻¹ NaNO₃, pH 7.6, 22 °C, 85 L h⁻¹). Ten specimens made of X4CrNiMo16-5-1 stainless steel (five per time level) were processed, and the outcomes were analysed by digital microscopy and high-precision weighing. Extending the machining time from 6 s to 12 s increased total mass removal (mean Δm: 0.0044 g → 0.0060 g) and produced a statistically significant reduction in burr area (55 % vs 146 %; p = 0.023). Conversely, the instantaneous material-removal rate decreased slightly (0.60 g s⁻¹ → 0.49 g s⁻¹). Short-duration runs exhibited high variability, including occasional burr growth—whereas longer exposures yielded more consistent and reliable results. These findings reveal a clear time–efficiency trade-off in electrochemical machining: moderate machining intervals strike an optimal balance between quality and productivity. The results provide a quantitative foundation for adaptive control strategies, cathode-design improvements, and simulation-based optimization in precision deburring applications.