skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Friction stir welding bobbin tool

Abstract

A bobbin tool is disclosed that includes a top shoulder, a bottom shoulder, and an axial pin that extends between the top and bottom shoulders. The bottom shoulder has an annular shoulder end surface, a back surface opposite the annular shoulder end surface, and a side surface that joins the annular shoulder end surface and the back surface. One or more and radially-extending blades may be disposed on the side surface of the bottom shoulder and/or one or more axially-extending blades may be disposed on the back surface. The one or more blades provide the bobbin tool with an ability to friction stir weld a variable thickness workpiece assembly, axially plunged through the workpiece assembly along an axis of rotation of the bobbin tool, and/or be extracted through the workpiece assembly along an axis of rotation of the bobbin tool.

Inventors:
; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1568102
Patent Number(s):
10,239,152
Application Number:
15/498,204
Assignee:
GM Global Technology Operations LLC (Detroit, MI)
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Patent
Resource Relation:
Patent File Date: 04/26/2017
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Carlson, Blair E., Szymanski, Robert T., Hovanski, Yuri, Mellas, Spyros P., and Ross, Kenneth. Friction stir welding bobbin tool. United States: N. p., 2019. Web.
Carlson, Blair E., Szymanski, Robert T., Hovanski, Yuri, Mellas, Spyros P., & Ross, Kenneth. Friction stir welding bobbin tool. United States.
Carlson, Blair E., Szymanski, Robert T., Hovanski, Yuri, Mellas, Spyros P., and Ross, Kenneth. Tue . "Friction stir welding bobbin tool". United States. https://www.osti.gov/servlets/purl/1568102.
@article{osti_1568102,
title = {Friction stir welding bobbin tool},
author = {Carlson, Blair E. and Szymanski, Robert T. and Hovanski, Yuri and Mellas, Spyros P. and Ross, Kenneth},
abstractNote = {A bobbin tool is disclosed that includes a top shoulder, a bottom shoulder, and an axial pin that extends between the top and bottom shoulders. The bottom shoulder has an annular shoulder end surface, a back surface opposite the annular shoulder end surface, and a side surface that joins the annular shoulder end surface and the back surface. One or more and radially-extending blades may be disposed on the side surface of the bottom shoulder and/or one or more axially-extending blades may be disposed on the back surface. The one or more blades provide the bobbin tool with an ability to friction stir weld a variable thickness workpiece assembly, axially plunged through the workpiece assembly along an axis of rotation of the bobbin tool, and/or be extracted through the workpiece assembly along an axis of rotation of the bobbin tool.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {3}
}

Patent:

Save / Share:

Works referenced in this record:

Friction stir welding
patent, August 1998


Friction stir welding apparatus
patent, November 2014