DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Lateral position detection and control for friction stir systems

Abstract

An apparatus and computer program are disclosed for processing at least one workpiece using a rotary tool with rotating member for contacting and processing the workpiece. The methods include oscillating the rotary tool laterally with respect to a selected propagation path for the rotating member with respect to the workpiece to define an oscillation path for the rotating member. The methods further include obtaining force signals or parameters related to the force experienced by the rotary tool at least while the rotating member is disposed at the extremes of the oscillation. The force signals or parameters associated with the extremes can then be analyzed to determine a lateral position of the selected path with respect to a target path and a lateral offset value can be determined based on the lateral position. The lateral distance between the selected path and the target path can be decreased based on the lateral offset value.

Inventors:
; ; ; ; ; ;
Issue Date:
Research Org.:
Vanderbilt Univ., Nashville, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1176445
Patent Number(s):
8191753
Application Number:
13/242,766
Assignee:
Vanderbilt University (Nashville, TN)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23K - SOLDERING OR UNSOLDERING
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 Oct 07
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING

Citation Formats

Fleming, Paul, Lammlein, David H., Cook, George E., Wilkes, Don Mitchell, Strauss, Alvin M., Delapp, David R., and Hartman, Daniel A. Lateral position detection and control for friction stir systems. United States: N. p., 2012. Web.
Fleming, Paul, Lammlein, David H., Cook, George E., Wilkes, Don Mitchell, Strauss, Alvin M., Delapp, David R., & Hartman, Daniel A. Lateral position detection and control for friction stir systems. United States.
Fleming, Paul, Lammlein, David H., Cook, George E., Wilkes, Don Mitchell, Strauss, Alvin M., Delapp, David R., and Hartman, Daniel A. Tue . "Lateral position detection and control for friction stir systems". United States. https://www.osti.gov/servlets/purl/1176445.
@article{osti_1176445,
title = {Lateral position detection and control for friction stir systems},
author = {Fleming, Paul and Lammlein, David H. and Cook, George E. and Wilkes, Don Mitchell and Strauss, Alvin M. and Delapp, David R. and Hartman, Daniel A.},
abstractNote = {An apparatus and computer program are disclosed for processing at least one workpiece using a rotary tool with rotating member for contacting and processing the workpiece. The methods include oscillating the rotary tool laterally with respect to a selected propagation path for the rotating member with respect to the workpiece to define an oscillation path for the rotating member. The methods further include obtaining force signals or parameters related to the force experienced by the rotary tool at least while the rotating member is disposed at the extremes of the oscillation. The force signals or parameters associated with the extremes can then be analyzed to determine a lateral position of the selected path with respect to a target path and a lateral offset value can be determined based on the lateral position. The lateral distance between the selected path and the target path can be decreased based on the lateral offset value.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {6}
}