MAPPING OF NON-DESTRUCTIVE TECHNIQUES FOR INSPECTION OF WIRE AND ARC ADDITIVE MANUFACTURING

Ana Lopez, Ricardo Bacelar, Inês Pires, Telmo Santos, Luisa Quintino

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The present work addresses the challenges of identifying applicable non-destructive-testing techniques suitable for inspection and materials characterization techniques for Wire and Arc Additive Manufacturing (WAAM) parts. The overall manufacturing process productivity will be increased by increasing the yield, driven by the reduction in scrap rate, enabled by in-process inspection and material characterization. Thus, the main objective of this paper is to evaluate the capability for detecting the potential defects that are associated with WAAM. During this study, radiography, liquid penetrant inspection and ultrasonic testing were applied on reference specimens in order to detect the defects and its location. Then, metallographic, hardness and electrical conductivity field analysis were applied on the same specimens for material characterization. Experimental outcomes prove that typical WAAM defects can be detected by the referred techniques. Also, the blocks characterization using the electrical conductivity technique shows that heterogeneities, porosities and interfaces between layers can be effectively identified, suggesting that the application of this physical principle to non-destructive-evaluation has the potential to complement or substitute the generally used destructive methods in AM processing.
Original languageEnglish
Title of host publicationPROCEEDINGS OF THE 7TH INTERNATIONAL CONFERENCE ON MECHANICS AND MATERIALS IN DESIGN (M2D2017)
EditorsJ. F. S. Gomes, S. A. Meguid
Place of PublicationPorto
PublisherINEGI/FEUP
Pages1829-1844
ISBN (Print)978-989-98832-7-7
Publication statusPublished - 2017
Event7th International Conference on Mechanics and Materials in Design - Albufeira, Albufeira, Portugal
Duration: 11 Jun 201715 Jun 2017
https://paginas.fe.up.pt/clme/M2D2017/

Conference

Conference7th International Conference on Mechanics and Materials in Design
Abbreviated titleM2D2017
CountryPortugal
CityAlbufeira
Period11/06/1715/06/17
Internet address

Keywords

  • non-destructive techniques
  • materials characterization
  • additive manufacturing
  • wire and arc additive manufacturing

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