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� Why an aluminum?
� Recent history of AIV’s at Ford.
� Overview of the BIW.
� BIW Joining Technologies.
� BIW Fastening Technologies.
� Reduce Mass
◦ Improved Fuel Economy.
◦ Improved Payload.
◦ Improved Performance and Feel.
◦More saleable content.
◦Additional secondary weight saves.
� 40%+ weight save over outgoing BIW.
� 14 Material Specifications.◦ Includes in house hydroforming of front
end and roof rails tubes.
◦ In house heat treat and batch pretreat operations.
� 8 BIW joining technologies.
� 6 BIW fastening technologies.
� Self-Piercing Rivets -Henrob
� Structural Adhesive-Dow
� Flow Drill Screws-Semblex/Ejot/Weber
� Clinches-Tox
� Resistance Spot Welds-ARO
� Laser Weld-IPG
� Friction Welds-Coldwater
� Bolts
� Two feed systems:◦ Spool◦ Cartridge-Bulk fed
from hopper.
� Servo Setters (all Henrob).
� Inspection:◦ In-Process Control◦ Visual and
Measurements by Inspectors
� Extensive upfront Feasibility.
� Two Diameter Rivets used:◦ 3mm◦ 5mm
� Lengths range from 4 mm to 11 mm.
� Tubular and Semi-Tubular.� Several head variations of
Countersunk and Pan Head.
� Prefers thin to thick, but can tolerate ratios down to 1/3.
� Used in mixed metal joining.
� Using about 110 m average per truck.
� Dow 6160.
� Using Alcoa 951 pretreatment.
� Used in combination with:◦ SPR
◦ FDS
◦ Clinches
Ad
he
sive
•112.5 m
eters/v
eh•
740,779 liters/y
r
� Using about 140 FDS on average per truck.
� Using only two lengths of screw.
� One-sided joining.
� Requires stiff area.
� EJOT style screw produced by Semblex.
� Six steps during the install process.
� Clearance holes are sometimes required depending on gauge and alloy of materials.
� Weber equipment.
� Use about 70 TOX clinches average per truck.
� Typically used in conjunction with other joining methods.
� Process prefers thick to thin.
� Used as a mixed metal joining method.
� About 100 RSW average per truck.
� Used on the box floor for more robustness to corrosion.
� Ford developed / patented process.
� ARO controller and guns.
Resistance Spot Welds • 98 RSW’s/veh• 51.4 million/yr
Resistance Spot Welds • 98 RSW’s/veh• 51.4 million/yr
� About 6 meters average length of laser welding.
� All edge welding.
� AA4047 Filler wire.
� IPG with Highyaghead.
� About 8 friction weld applications per vehicle.
� Use a Harmes & Wende Tool
� Primarily used to attach “Crush” tubes.
� Used a combination of RB&W, Arnold, Strux and Profil.
� Proven technology in used in our aluminum closures.
� Developed designs with Maclean-Fogg
� Used in BIW grounding applications.
� Currently all M6 unthreaded applications.
� Used throughout the vehicle in aluminum and steel.
� Prog die part.
� M6 though M12 used on truck.
� Threaded and unthreaded.
� Used on internally installed bodyshopgrounding applications.
� M8 and M10’s.
� Stanley supplies studs and equipment.
� Used on typically on our hydroformed front end tubes for light duty (M6) attachments.
� Benefit is that an extra hole or fastener does not need to be added to the tubes saving costs in cycle time and fastener cost.
� Need to tune the bit diameter based on application-Supplied by Flowdrill.
� The joining and fastening required for and AIV is different and unique.
� The balance of each joining/fastening method will change based on alloys, form (castings, stampings, hydroforms, etc) along with new developments, supplier performance and lessons learned.
� Engineers will need to understand the benefits and drawbacks of the joining and fastening processes.
� Many tools and fasteners are engineered products and not commodities.