Technology scale-up in metal additive manufacture: from a coupon to a product

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Scaling-up Metal Additive Manufacture (AM), especially using the direct energy deposition methods, faces a number of challenges when moving from the ‘coupon ‘stage to a large-scale (>1 m) product. This talk addresses the challenges that were experienced during a laboratory-based scale-up process, including the transferability of parameters from the coupon stage to the product stage, as well as the management of distortion, structural defects (e.g. lack of fusion, porosity, etc…), and microstructural inhomogeneities that form due to the process. Post-processing using hot isostatic pressing was explored, and was found to improve the structural integrity of the builds, yet at an extra cost to the process. The talk also highlights the utility of in-situ process monitoring and rapid finite element simulations, in order to generate a ‘first-time right’ process sequence for AM products.
Original languageEnglish
Title of host publicationMS&T 2016
Subtitle of host publicationProceedings from the Materials Science and Technology 2016 Conference
PublisherMS&T Partner Societies
ISBN (Electronic)978-0873397643
Publication statusPublished - 24 Oct 2016
EventMS&T 2016: Materials Science and Technology 2016 Conference - Utah, Salt Lake City, United States
Duration: 23 Oct 201727 Oct 2017

Conference

ConferenceMS&T 2016
Country/TerritoryUnited States
CitySalt Lake City
Period23/10/1727/10/17

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