The influence of build parameters and wire batch on porosity of wire and arc additive manufactured aluminium alloy 2319
By E. Ryan, T. Sabin, J. Watts, M. Whiting. Journal of Materials Processing Technology, 2018
175 citations recorded by the source corpus.
Abstract Porosity was measured for 21 AA2319 wire and arc additive manufacture (WAAM) panels built using different wire batches, cold metal transfer (CMT) modes, wire feed speed (WFS) and travel speed (TS). Image analysis software was used to measure the porosity across two different planes, totalling an area of 84 mm2 approximately 20 layers in height. Porosity was not strongly dependent on CMT mode, WFS and WFS to TS ratio within the ranges tested but batch-to-batch variability in feedstock wire had a significant influence on area of porosity and size distribution. Wire characterisation showed that porosity did not appear to depend on bulk composition but was influenced by surface finish. Surface finish could affect hydrogen content on the wire surface and arc stability which would affect porosity. Further investigation of the relationships between surface finish and surface hydrogen content, and surface finish and arc stability is required to understand porosity formation in aluminium WAAM components.
Subfields: Aerospace Engineering, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/c064cd35fd19e45ba42c2b5cdd78eb913e4c2fe4
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In Mechanical Engineering
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- C. Rusu
- E. Scutelnicu
Citations in the corpus
- Wire Arc Additive Manufacturing: Review on Recent Findings and Challenges in Industrial Applications and Materials Characterization (2021, background): “[45] examined the AA2319 WAAM panels on the batch variability of wires and reported that the surface finish of the wires affects the hydrogen content and the arc stability.”
- Wire and arc additive manufacturing: Opportunities and challenges to control the quality and accuracy of manufactured parts (2021, background): “Single bead [172] CMT/ER 2319 CMT mode, WFS, TS Porosity did not depend strongly on the ratio of the tested CMT mode, WFS, and WFS to TS.”