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Final Design. Tie-down Finishing Machine. Team Tie-Master Brittany Ballard Cam Leslie Steve May. Project Problem. Current Situation: Surface of aluminum tracks finished by-hand Burrs on edges from milling Chips from milling can get lodged in the channel of the track
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Final Design Tie-down Finishing Machine Team Tie-Master Brittany Ballard Cam Leslie Steve May
Project Problem Current Situation: • Surface of aluminum tracks finished by-hand • Burrs on edges from milling • Chips from milling can get lodged in the channel of the track • Outer surface of the track is inconsistent
Project Problem Current Issues: • Manual surface finish is time consuming • May pose health hazards
Project Goal Design, fabricate, and test a machine that will automatically finish, de-burr, and clear debrisfrom several different tie-down track profiles
Conceptual Design Broken into specific areas: Creating the Grain and De-burring Removing Debris Track Movement
Detailed Design Creating the Grain and De-burring
Detailed Design FEA with ABAQUS Stresses were calculated w/ various increasing loads until failure predicted at 300 lbf.
Detailed DesignCATIA Model The case footprint is 14.5”x14” This is the final design. The overall length is 4ft.
Manufacturing Processes • Milling and welding were the two processes most used for this project • Many parts were ordered from manufacturers • This will allow for easy replacement
Final Product • Systems were tested separately • Each system met specs when tested separately • Systems are currently being integrated
Total Cost Initial Budget of $ 4,000 Total cost ≈ $ 3,500
Media Cost • Using the current setup, there are 2-6” pads and 4-5.6” pads in the finishing wheel stack • Cost of each pad is $2.58 ea • The pad stack can be used for approximately 200 ft of track, depending on the length of individual tracks Media cost = $15.48 for 200 ft of track = $0.08 per ft of track
Working Hours • These hours include time for all group members (3) • This equates to approximately 15.5 hrs of work per week, per person on this • project
Future Adaptations • Kaizen Projects • Make finishing pads last longer • Layout of Mac’s shop • Other Features • Adding a debris separator to funnel • Future use on other aluminum parts • Change placement of finishing pads for improved grain