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Cui Er Seow summary slides 2017
1. PhD Project
Structural Integrity of Wire+Arc Additive
Manufacturing (WAAM)
Cui Er Seow
PhD Student at National Structural Integrity Centre, TWI Ltd
Funded by Lloyds Register Foundation
1
16 February 2017
2. Structural Integrity of
Wire + Arc Additive Manufacturing (WAAM)
2
February 16, 2017
What is WAAM?
•Metallic 3D printing
•Welding arc + wire feed
Why WAAM?
•Higher deposition rate than powder based
methods – larger parts, faster
•Less material wasted (vs. machining)
3. Structural Integrity of
Wire + Arc Additive Manufacturing
3
February 16, 2017
Industry challenges
•What are the material properties? (microstructure,
residual stress)
•Do existing Structural Integrity Assessment
procedures apply?
Research objectives
•Gather experimental evidence
•Identify links between microstructure and macro-
scale behaviour
•Develop assessment procedures for WAAM