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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6. Recent developments and innovative processes in electropolishing

Since 2015, the literature indicates a renewed interest in the academic and industrial world for electropolishing, which accompanies the deployment of metal additive manufacturing. On a national scale, the AFTER ALM (for AFTER-Additive Layer Manufacturing) project led by IRT M2P (2017-2021) aims to develop and evaluate different finishing processes for parts resulting from additive manufacturing (SLM/EBM). The project brings together major industrial contractors such as Airbus, Safran, Liebherr, Collins Aerospace, Stelia, NavalGroup and ArianeGroup. It also includes companies specialized in the production of parts by additive manufacturing (LISI Aerospace, WeAre Aerospace, Spartacus 3D, Add-up, Volum-e), surface treatment applicators (Galvanoplast, Chrome Dur Industriel, DEC SA, Satys, GIT), technology partners (Micronics, ABC Swisstech, Beckmann Institute, IREPA laser, R&D Nano, INVENTEC,...

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Recent developments and innovative processes in electropolishing

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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...