Surface finishing of EBM parts by (electro-)chemical etching

[en] Post treatment of titanium alloy parts obtained by Electron Beam Melting (EBM) is required before assembly due to their high roughness (Ra = 25 µm). For parts with complex geometry, chemical and electro-chemical etching are two promising processes which enhance the part surface integrity thanks to their global action. These two processes were applied to Ti6Al4V parts obtained by EBM. Their surface topography, micro hardness, dimensional and geometrical accuracy were compared. For a given removed thickness of 0.150 mm, electro-chemical etching exhibited higher efficiency to improve arithmetic roughness (∼39%) than chemical etching (∼7%).

Disciplines :

Materials science & engineering
Mechanical engineering

Author, co-author :

Spitaels, Laurent ; Université de Mons - UMONS > Faculté Polytechnique > Service de Génie Mécanique

Rivière, Edouard ; Université de Mons - UMONS > Faculté Polytechnique > Service de Génie Mécanique

Díaz, Macarena Cantero; UMONS - Université de Mons [BE] > Faculté Polytechnique > Service de Génie Mécanique

Duquesnoy, Jonathan; Chimiderouil S.A.

Ducobu, François ; Université de Mons - UMONS > Faculté Polytechnique > Service de Génie Mécanique

Language :

English

Title :

Surface finishing of EBM parts by (electro-)chemical etching

Publication date :

01 June 2022

Journal title :

Procedia CIRP

ISSN :

2212-8271

Publisher :

Elsevier BV

Volume :

108

Pages :

112-117

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

https://doi.org/10.1016/j.procir.2022.03.023

Research unit :

F707 - Génie Mécanique

Research institute :

R400 - Institut de Recherche en Science et Ingénierie des Matériaux

Data Set :

https://doi.org/10.1016/j.procir.2022.03.023

Available on ORBi UMONS :

since 10 June 2022

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