Titanium fastener shortages significantly affected Boeing 787 delivery
Parts shortages, subcontractors weak implementation problems important part of the composite structure, need to re-design and modifications and other series of events so that 787 manufacturing stalled several times.
787 significantly increased the use of new composite materials, namely multi-layer carbon fiber embedded in epoxy resin to form a lighter, more durable composite materials. 787 composite construction accounted for 50% of older Boeing 777 jetliner only 12%. In commercial aircraft, the configuration of the entire body using a single sheet composite whole is the first time, and the wings and center wing box is the first time the use of composite materials. Airbus and Boeing will subcontract a part of the general manufacturing process, go further on the Boeing 787 manufacturing, we will never outsourced design and manufacturing process outsourcing aircraft main structure.
But the results are not encouraging. Until December 2009, the first 787 was first test flight, Boeing is the history of the longest delay time of the first flight, delayed for a full 28 months.
First of all, the fasteners there is a problem. Boeing 777 manufacturing needs 2.7 million fasteners, including bolts titanium, aluminum bolts, stainless steel bolts, rivets and other special fasteners for airframe manufacturers, but also requires more manufacturing 787 titanium fastener.
When 787 started manufacturing, fastener shortages already evident. Boeing's outsourcing strategy is a lot to make this problem worse. Subcontractors have ordered by different routes fasteners, and delivery vary, leading fastener manufacturers difficult to develop orderly production plan. This allows the aircraft manufacturing work almost stagnant. To solve this problem, Boeing took over all fasteners emergency work order.