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Letter 15032
Electrochemical deburring of laser treated
nickel sheets
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Hi, we currently have the problem of electropolishing/deburring
nickel sheets that have been engraved by means of a laser. Typical
engraving depth is around 50microns. After lasering of the sample the
engraved area is covered with nickel-oxide.
The main problem is that the burrs created during the laser
etching cannot be fully removed with the electrolyte we've tried so
far (Combinations of Sulphuric Acid, Phosphoric Acid and Hydrochloric
Acid) with Current Densities up to 20Amps/dm2. After treatment there
are still some edges of the engraving that are higher than the
surface plane.
Could you please give me advice on optimized (electro)chemical
deburring techniques for nickel and the experience you had with them?
Best regards,
Harald Deinhammer
- Vienna, Austria
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