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Technical Paper

An Anecdote - Order of Magnitude Cost and Time Reduction in Delivering an Aircraft Manufacturing Solution

2013-09-17
2013-01-2335
From purchase order to production womb-to-tomb in 5 months to the day, Bombardier's Fuselage Assembly line was upgraded and made into a fuselage automated assembly pulse line. This was accomplished with a factory move of the assembly line while maintaining production of this legacy line without missing one aircraft. Early in 2012, a bold decision was made to change the plan from a manual process to an automated process and implemented on schedule. This was applying automation to a legacy aircraft assembly line. It worked. Both technology and recurring cost savings will be addressed in this paper.
Technical Paper

Womb to Tomb SPC Control of Fasteners from Rivet Manufacture to Installation using Existing Software

2003-09-08
2003-01-2958
Controlling rivet tolerances, and the hole tolerances that these rivets are inserted into, are some of the most important requirements in the manufacture of aircraft. Because of the laminar air flow over the outside of the skin in all aircraft, and the stealth requirements of military aircraft, the rivets must sit flush with the Outside Mode Line of the exterior skin. This countersink depth must be tightly controlled in tolerance, both in the hole diameter & countersink, and also in the manufacture of the rivets. In the past, the aircraft OEM's have driven, independently, the rivet manufacturer and the machine manufacturer drilling the holes, to control tighter and tighter tolerances. The conventional way to get better performance is to implement SPC independently into the rivet manufacturing process and also into the machine hole drilling process. Let's consider first the rivet manufacturing process.
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