Characterization of additively manufactured heat exchanger tubing

Paul S. Korinko, Haley McKee, Frederick List, Keith Carver, John Bobbitt

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

2 Scopus citations

Abstract

Additive Manufacturing brings unique opportunities to the fabrication world, especially for complex, high value added components that are challenging if not impossible to fabricate using traditional technologies. There are several different technologies that can be used for making metal additive manufactured parts. In this study, selective laser melting (SLM) was used to fabricate conceptual process tubing. Through an evolutionary design and build process coupled with thermal and mechanical modeling, tubing with a unique additive manufacturing compatible geometry has been fabricated. This paper will briefly describe the application, which has a thermal swing from nominally 140°C to -40°C, the evolution of the design, and the characterization conducted to date. Finally, the challenges of designing and printing a coiled segment of this tubing that is 150 cm long will be described. The results will include non-destructive and destructive testing and evaluation. The data from tensile testing the first and second generations of the tubing will be compared. The properties and characterization of the surrogate coil will be described and discussed. Future component development and testing will be discussed for this unique AM process tubing.

Original languageEnglish
Title of host publicationMaterials and Fabrication
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791857991
DOIs
StatePublished - 2017
EventASME 2017 Pressure Vessels and Piping Conference, PVP 2017 - Waikoloa, United States
Duration: Jul 16 2017Jul 20 2017

Publication series

NameAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume6A-2017
ISSN (Print)0277-027X

Conference

ConferenceASME 2017 Pressure Vessels and Piping Conference, PVP 2017
Country/TerritoryUnited States
CityWaikoloa
Period07/16/1707/20/17

Funding

The authors would like to acknowledge Edward A. Stein, Adam Schnell, and Alexander Hollinghead for their SEM, metallography, and general lab support, George Crow for conducting burst tests, Monica Phillips for videography, David Worrall for gas tungsten arc welding of the high pressure tubes to the am pipe segments, Ken Imrich for Electrical Discharge Machining (EDM), James Wilderman for tensile testing, Ken Meeler for CAD work, and Robert (Bob) Snyder, Jr. for programmatic and funding support. This document was prepared for the U.S. Department of Energy under contract number DE-AC09-08SR22470.

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