Residual stress of as-deposited and rolled wire+arc additive manufacturing Ti–6Al–4V components

By Filomeno Martina, Matthew Roy, Blanka A. Szost, S. Terzi, Paul A. Colegrove, Stewart W. Williams, P. J. Withers, J. Meyer, M. Hofmann. 2016

217 citations recorded by the source corpus.

Wire + arc additive manufacturing components contain significant residual stresses, which manifest in distortion. High-pressure rolling was applied to each layer of a linear Ti–6Al–4V wire + arc additive manufacturing component in between deposition passes. In rolled specimens, out-of-plane distortion was more than halved; a change in the deposits’ geometry due to plastic deformation was observed and process repeatability was increased. The Contour method of residual stresses measurements showed that although the specimens still exhibited tensile stresses (up to 500 MPa), their magnitude was reduced by 60%, particularly at the interface between deposit and substrate. The results were validated with neutron diffraction measurements, which were in good agreement away from the baseplate. This paper is part of a Themed Issue on Measurement, modelling and mitigation of residual stress.

Subfields: Materials Chemistry, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/8d81eaf3441fac7829f77a1176ba90138313c91c

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Materials Chemistry

1. J. P. Oliveira
2. Stewart W. Williams
3. Telmo G. Santos
4. R. Miranda
5. V. Duarte
6. T. A. Rodrigues
7. Paul A. Colegrove
8. S. Ganguly

In Mechanical Engineering

1. J. P. Oliveira
2. Telmo G. Santos
3. R. Miranda
4. V. Duarte
5. T. A. Rodrigues
6. Stewart W. Williams
7. S. Ganguly
8. J. Hönnige

Citations in the corpus

• Control of residual stress and distortion in aluminium wire + arc additive manufacture with rolling (2018, background): “In all other measurements of WAAM samples [12], [16], [33], [48], [49] the stresses in the transverse and normal directions were relatively small in thin walls – hence a plane stress condition can be assumed.”
• Wire Arc Additive Manufacturing: Review on Recent Findings and Challenges in Industrial Applications and Materials Characterization (2021, background): “[89] Residual stresses and distortion Inter-pass rolling Increase in wall width, uniform layer height Increased manufacturing time”
• Current Status and Perspectives on Wire and Arc Additive Manufacturing (WAAM) (2019, background): “residual stress and distortion in aluminum [19,20] and titanium [21,22] alloys.”