Joining dissimilar materials using Friction Stir scribe technique

Journal Article · Mon Oct 03 00:00:00 EDT 2016 · Journal of Manufacturing Science and Engineering, 139(3):Article No. 034501

DOI:https://doi.org/10.1115/1.4034629· OSTI ID:1332617

Upadhyay, Piyush; Hovanski, Yuri; Jana, Saumyadeep; Fifield, Leonard S.

The ability to effectively join materials with vastly different melting points like Aluminum-Steel, Polymer composites - metals has been one of the road blocks in realizing multi-material components for light weighting efforts. Friction stir scribe (FSS) technique is a promising method that produces continuous overlap joint between materials with vastly different melting regimes and high temperature flow characteristics. FSS uses an offset cutting tool at the tip of the FSW pin to create an insitu mechanical interlock between material interfaces. With investments from Vehicle Technology office, US DOE and several automotive manufacturers and suppliers PNNL is developing the FSS process and has demonstrated viability of joining several material combinations. Details of welding trails, unique challenges and mitigation strategies in different material combinations will be discussed. Joint characterization including mechanical tests and joint performances will also be presented.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1332617
• Report Number(s): PNNL-SA-121019; VT0505000
• Journal Information: Journal of Manufacturing Science and Engineering, 139(3):Article No. 034501, Vol. 139, Issue 3; ISSN 1087-1357
• Country of Publication: United States
• Language: English