Student: Jesse McDavitt (Mech.) Class: ET-493 Semester: Spring 2014 Advisor: Riana Mitra.
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Transcript of Student: Jesse McDavitt (Mech.) Class: ET-493 Semester: Spring 2014 Advisor: Riana Mitra.
STIR FRICTION WELDING
SENIOR DESIGNStudent: Jesse McDavitt (Mech.)
Class: ET-493Semester: Spring 2014
Advisor: Riana Mitra
Objective
Overall-To perform an experiment with Friction stir welding continuing Dr. Mitra’s pervious work.
Simulate FSW in COMSOL Improve tool design Fabricate tool Write a procedure for FSW govern by
ASME (BPVC )Section IX
Challenges
Heat Generation at tool pin and shoulder Tool Design Speed of rotation Normal Force Large Material Deformation Extrusion Forging
Improving Experiment
COMSOL simulation Simulate different designs Different Forces and Angular velocity Different Radius on shoulder and pin Written procedure Standards to govern (guidelines)
Deliverables:
A simulation using finite element analysis (COMSOL) that will determine the best options for designing a suitable tool geometry (or geometries) for specific heat transfer and deformation conditions.
Tool-Design 3-D Construct of Tool The Tool Geometry (Curved Shoulder/Grooved
tip/Cylindrical Shape, etc.) A procedure for friction stir welding that will be
governed by Welding Standard ASME Section IX 2013 ed.
Test specimens showing the experimental results.
Time Line: Spring 2014 January 27th - February 14th- Meet and discuss project with Advisers. February 17th - February 21th- Work on Proposal February 24th - February 25th- Finish Proposal February 26th - February 28th Research COMSOL and how to use a moving mesh. March 3rd - March 28th - Work with COMSOL and making the simulation work. March 31th - April 11th - Input Dr. Mitra’s original design and test the simulation. April14th - May 2nd - Prepare for final presentation. Fall 2014 August20th - August22th - Meet with advisor and discuss last semester’s work. August25th - August29th - Begin working on design ideas and inputting into
simulation. September1st - October 3rd - Try different designs in simulations and find best. October6th - October17th - Have tool design sent off for fabrication. October20th - October24th - Begin defining parameters for welding procedure. October27th- October31st - Run and test procedure November3rd - November14th - Send test specimen off to be inspected and tested
for quality. November17th - November28th - Prepare for finale report and presentation.
Road Map
Currently working on inputting Dr. Mitra’s data into COMSOL
Road Blocks Do not have some of the Parameters Need to correlate Dr. Mitra’s experimental
results with COMSOL simulation.