Effect of Build Strategies on the Development of Residual Stresses in Laser Metal Deposited Ti-6Al-4V Aerospace Components

DOI

Laser metal deposition (LMD) is a layer-by-layer additive manufacturing process used to produce near-net shaped components in the aerospace industry, with complex geometries that cannot be made via conventional manufacturing. A specific concern for LMD parts is the relation between process parameters with residual stress development and the effect on mechanical performance. Residual stresses are key factors causing tearing, mismatch of build layers and cracking in LMD components, due to complex thermal cycling from numerous melting, cooling and re-heating. Geometric height, materials properties and laser scanning path strategies affect the shape and magnitude of the residual stress profiles in LMD parts. This proposal is based on altering the build strategies, utilising different LMD scanning paths to characterise the effects on residual stress development in three Ti-6Al-4V T-Walls.

Identifier
DOI https://doi.org/10.5286/ISIS.E.82359923
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/82359923
Provenance
Creator Mr Alex Leung; Dr Saurabh Kabra; Dr Mark Callaghan; Professor PETER LEE
Publisher ISIS Neutron and Muon Source
Publication Year 2019
Rights CC-BY Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact isisdata(at)stfc.ac.uk
Representation
Resource Type Dataset
Discipline Construction Engineering and Architecture; Engineering; Engineering Sciences
Temporal Coverage Begin 2016-09-20T23:00:00Z
Temporal Coverage End 2016-09-22T23:00:00Z