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Title: Hybrid friction stir welding for dissimilar materials through electro-plastic effect

Abstract

A hybrid Friction Stir Welding approach and device for dissimilar materials joining employing Electro-Plastic Effect. The approach and device include an introduction of high density, short period current pulses into traditional friction stir welding process, which therefore can generate a localized softened zone in the workpiece during plastic stirring without significant additional temperature increase. This material softened zone is created by high density current pulses based on Electro-Plastic Effect and will move along with the friction stir welding tool. Smaller downward force, larger processing window and better joint quality for dissimilar materials are expected to be achieved through this hybrid welding technique.

Inventors:
; ;
Publication Date:
Research Org.:
Washington Procurement Operations Office, Washington, DC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1455186
Patent Number(s):
9,981,338
Application Number:
14/742,749
Assignee:
The Regents of The University of Michigan (Ann Arbor, MI) HQPR
DOE Contract Number:  
PI0000012
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Jun 18
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Liu, Xun, Lan, Shuhuai, and Ni, Jun. Hybrid friction stir welding for dissimilar materials through electro-plastic effect. United States: N. p., 2018. Web.
Liu, Xun, Lan, Shuhuai, & Ni, Jun. Hybrid friction stir welding for dissimilar materials through electro-plastic effect. United States.
Liu, Xun, Lan, Shuhuai, and Ni, Jun. Tue . "Hybrid friction stir welding for dissimilar materials through electro-plastic effect". United States. https://www.osti.gov/servlets/purl/1455186.
@article{osti_1455186,
title = {Hybrid friction stir welding for dissimilar materials through electro-plastic effect},
author = {Liu, Xun and Lan, Shuhuai and Ni, Jun},
abstractNote = {A hybrid Friction Stir Welding approach and device for dissimilar materials joining employing Electro-Plastic Effect. The approach and device include an introduction of high density, short period current pulses into traditional friction stir welding process, which therefore can generate a localized softened zone in the workpiece during plastic stirring without significant additional temperature increase. This material softened zone is created by high density current pulses based on Electro-Plastic Effect and will move along with the friction stir welding tool. Smaller downward force, larger processing window and better joint quality for dissimilar materials are expected to be achieved through this hybrid welding technique.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 29 00:00:00 EDT 2018},
month = {Tue May 29 00:00:00 EDT 2018}
}

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Works referenced in this record:

Application of Electric Current in Friction Stir Welding
conference, January 2010

  • Pitschman, Matthew; Dolecki, Jacob W.; Johns, Garret W.
  • ASME 2010 International Manufacturing Science and Engineering Conference
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Overview no. 49: On the mechanisms for the electroplastic effect in metals
journal, July 1986


Manufacturing Aspects Relating to the Effects of Direct Current on the Tensile Properties of Metals
journal, January 2007

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