Article | REF: M1635 V1

Electropolishing -Tool for post-processing of metallic additive manufacturing parts

Authors: Marie-Laure DOCHE, Jean-Yves HIHN

Publication date: October 10, 2021

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4. Protocol for optimizing electropolishing parameters in additive manufacturing

Setting up an electropolishing process suitable for very rough substrates, such as those used in additive manufacturing, requires a structured experimental approach that starts in the laboratory and continues on an industrial or semi-industrial scale.

4.1 Process sequence

The complete electropolishing process includes three fundamental steps:

surface preparation, the aim of which is to remove contamination (dust, grease, etc.). All conventional cleaning techniques can be used at this stage

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Protocol for optimizing electropolishing parameters in additive manufacturing

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page Process parameters

Review of electrolytes and processes for the treatment of additive manufacturing parts

Bibliography

(1) - JACQUET (P.A.), FIGOUX (H.) - Perfectionnement aux traitements électrolytiques des métaux. - Brevet Français, n° 707526 (1930).
(2) - CHAISE (T.), ELGUEDJ (T.), GIRARDIN (F.), MARTINI (L.), NOEL (N.), TARDIF (N.) - Parachèvement de surface Généralités....

Standards and norms

Geometric product specification (GPS) – Surface finish: profile method – Terms, definitions and surface finish parameters. - NF EN ISO 4287 - décembre 1998
Geometric product specification (GPS) – Surface finish: profile method – Terms, definitions and surface parameters – Amendment 1: number of peaks. - NF EN ISO 4287/A1 - août 2009
Geometric product specification (GPS) – Surface finish: surface – Part...

Patents

Cerium electrolytic oxidation process and electrolysis unit for its implementation CA2582058.

Electrolyte for electrochemically polishing metallic surfaces EP1625246A2 (2003).

Method for electropolishing and/or electrochemical deburring of surfaces made from titanium or titanium-containing alloys comprises using an electrolyte made from methane sulfonic acid or one or more alkane...