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M axime Gicqueau

CETIM, Nantes, France

Additive manufacturing is currently flourishing. Wire Additive Arc Manufacturing (WAAM) ¬†process () is regularly quoted and needs of industrials are now oriented towards the reliability of parts production and the understanding of their suitability for use (fatigue, corrosion, etc.). WAAM process is of real interest because it is based on GMAW or […]

Additive manufacturing is currently flourishing. Wire Additive Arc Manufacturing (WAAM)  process () is regularly quoted and needs of industrials are now oriented towards the reliability of parts production and the understanding of their suitability for use (fatigue, corrosion, etc.). WAAM process is of real interest because it is based on GMAW or GTAW welding processes and implemented mainly on 6-axis robots. It makes it possible to produce large-sized parts with high-performance deposition rates (>1.5 kg/h).

This work deals with the industrialization of parts made with WAAM process in large quantity (80 parts) in order to assess the effect of different deposit conditions (welding strategy: weave or string beads, finishing : as deposited or machining and steel grade : G3Si1 (ER-70S) or G69(ER-100) filler metal. The produced parts consist of a function addition on a tube made using the GMAW process. First of all, the production provided feedback on the reproducibility, reliability on dimensional tolerance, technical difficulties in production. Then, various innovative non-destructive tests (UT-PA, eddy current, thermography) were carried out on the parts to determine the relevance of each test method and efficiency of the NDE technique according to the surface condition. The final part of this study concerns the fatigue life of such pieces and their capability to work in dynamic conditions.

Session

RoomDateHourSubject
Poster Session00:00-00:00Maxime Gicqueau

40 - Influence of the deposition conditions on industrialization and the fatigue life of parts built with Wire Arc Additive Manufacturing (WAAM) process
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