Description
This paper will explore the ways that the Superplastic Forming (SPF) and the Superplastic Forming and Diffusion Bonding (SPF/DB) processes are being used at Boeing Commercial Airplanes to reduce the cost of aluminum and titanium components as well as enhancing performance. These innovative manufacturing technologies are used to reduce detail part count as well as the number of fasteners required, reduce assembly time, improve dimensional tolerances and reduce the weight of components all of which leads to cost savings for the aircraft. The current SPF applications include internal stiffening details for doors, structure around the hot sections of the aircraft including the engine strut and auxiliary power unit areas, as well as close out features on wings. Future applications for SPF/DB components include door assemblies and control surfaces to minimize assembly and improve damage tolerance as well as corrosion resistance.