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Title: Advances in Dissimilar Metals Joining through Temperature Control of Friction Stir Welding

Abstract

Lightweighting of vehicles and portable structures is an important undertaking. Multi-material design is required to achieve conflicting design targets such as cost, stiffness, and weight. Friction stir welding (FSW) variants, such as friction stir dovetailing and friction stir scribe, are enabling technologies for joining of dissimilar metals. This work shows that FSW variants are capable of joining aluminum to steel. Characteristics of metallurgical bonding at the dissimilar material interface are strongly affected by weld temperature. Control of FSW process temperature enables metallurgical bonding with suppressed formation of intermetallics at the dissimilar material interface resulting in improved mechanical properties relative to competing techniques. Temperature control is a powerful tool for process development and to ensure weld quality of dissimilar material welds.

Authors:
ORCiD logo [1];  [1];  [2];  [1]
  1. BATTELLE (PACIFIC NW LAB)
  2. TARDEC
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1572468
Report Number(s):
PNNL-SA-144347
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
MRS Bulletin
Additional Journal Information:
Journal Volume: 44; Journal Issue: 8
Country of Publication:
United States
Language:
English
Subject:
Aluminum to Steel Joining, Friction stir welding, Friction Stir Dovetailing

Citation Formats

Ross, Kenneth A., Reza E Rabby, MD, Mcdonnell, Martin, and Whalen, Scott A. Advances in Dissimilar Metals Joining through Temperature Control of Friction Stir Welding. United States: N. p., 2019. Web. doi:10.1557/mrs.2019.181.
Ross, Kenneth A., Reza E Rabby, MD, Mcdonnell, Martin, & Whalen, Scott A. Advances in Dissimilar Metals Joining through Temperature Control of Friction Stir Welding. United States. doi:10.1557/mrs.2019.181.
Ross, Kenneth A., Reza E Rabby, MD, Mcdonnell, Martin, and Whalen, Scott A. Mon . "Advances in Dissimilar Metals Joining through Temperature Control of Friction Stir Welding". United States. doi:10.1557/mrs.2019.181.
@article{osti_1572468,
title = {Advances in Dissimilar Metals Joining through Temperature Control of Friction Stir Welding},
author = {Ross, Kenneth A. and Reza E Rabby, MD and Mcdonnell, Martin and Whalen, Scott A.},
abstractNote = {Lightweighting of vehicles and portable structures is an important undertaking. Multi-material design is required to achieve conflicting design targets such as cost, stiffness, and weight. Friction stir welding (FSW) variants, such as friction stir dovetailing and friction stir scribe, are enabling technologies for joining of dissimilar metals. This work shows that FSW variants are capable of joining aluminum to steel. Characteristics of metallurgical bonding at the dissimilar material interface are strongly affected by weld temperature. Control of FSW process temperature enables metallurgical bonding with suppressed formation of intermetallics at the dissimilar material interface resulting in improved mechanical properties relative to competing techniques. Temperature control is a powerful tool for process development and to ensure weld quality of dissimilar material welds.},
doi = {10.1557/mrs.2019.181},
journal = {MRS Bulletin},
number = 8,
volume = 44,
place = {United States},
year = {2019},
month = {8}
}

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