Abstract
During electrochemical micro machining (ECMM) metals are electrochemically dissolved at very high current densities up to 100 A/cm 2 in aqueous electrolytes like NaNO 3 or NaCl. Different anode processes take place during the electrochemical machining (ECM) process of iron in NaNO 3. Iron is dissolved as Fe 2+ and Fe 3+ and oxygen evolution appears. The different reaction products are analysed quantitatively and time resolved for pulses 10 ms ≤ t pulse ≤ 5000 ms under ECM conditions by a combination of our flow-through-microcell with an UV–vis-spectrometer and a pulse generator. The surface structure during pulsed ECM and the appearance of the machined surface is shown in dependence of the pulse length and the prepolarisation of the electrode. Crucial for the obtained results are the build-up and removal of the oxides, as well as the polishing film. The model for stationary ECM conditions is extended to a time resolved model.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
