Patent ID: 11873572
Assignee: 3DM BIOMEDICAL PTY LTD
Field: Surface technology, coating (Chemistry)
Classification: CPC C  B  Y | IPC B  C

Claim 7:
8. A method according to claim 1, wherein the electropolishing step includes application of an applied current regime comprising:
an initial pulse comprising a current density of at least 2 A/cm2 and a voltage comprising a shaped waveform having a frequency from 20 to 300 kHz, a minimum voltage of at least 0 V and a maximum voltage of between 50 to 500 V, and applied for a duration of at least 1 s; followed by
at least two electropolishing regimes comprising a current density of at least 2 A/cm2 and a voltage comprising a shaped waveform current having a frequency from 2 Hz to 300 kHz, a minimum voltage of at least 0 V and a maximum voltage of between 0.5 to 500 V and wherein the frequency and/or maximum voltage of each electropolishing regime is changed compared to the preceding electropolishing regime.