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Title page for ETD etd-01222009-003129


Type of Document Dissertation
Author Fleming, Paul Aaron
Author's Email Address paul.a.fleming@vanderbilt.edu
URN etd-01222009-003129
Title Monitoring and control in friction stir welding
Degree PhD
Department Electrical Engineering
Advisory Committee
Advisor Name Title
D. M. Wilkes Committee Chair
Alvin Strauss Committee Member
David DeLapp Committee Member
George Cook Committee Member
Jim Davidson Committee Member
Keywords
  • automation
  • control
  • friction stir welding
  • seam tracking
  • robotics
  • monitoring
  • tracking
  • Friction stir welding -- Automatic control
Date of Defense 2009-01-19
Availability unrestricted
Abstract
Friction stir welding (FSW) is a relatively new (1991) solid-state welding technique where the material is joined via mechanical stirring. In this dissertation, methods for the automatic monitoring and control of FSW are presented. Monitoring techniques include gap fit-up detection, tool misalignment detection and estimation, and tool wear detection. Additionally, a technology which accomplishes automatic joint-line tracking for FSW (through-the-tool tracking) is presented. Joint-tracking has shown to be very useful in other welding technologies and will likely improve the flexibility and applicability of FSW.
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