Linear Friction Welding for Low Cost Manufacturing

This presentation will describe recent developments and economical assessments in the joining of aerospace alloys using Linear Friction Welding (LFW). The talk will focus on the use of LFW to produce near net shape parts for aerospace components. Currently, many such components are machined from solid blocks of product, resulting in relatively poor material buy-to-fly ratios, often in high cost materials. The use of near net shape parts, produced by LFW, can significantly reduce production costs for a wide range of aerospace components.

Build-up of near net shape parts by LFW also provides the opportunity for selection of appropriate dissimilar materials/alloys in different parts of the structure. This approach allows the production of tailored components, resulting in both functional and economic benefits. Examples will be shown of the application of this approach to aerospace components, from simple LFW fabrications in Al and Ti alloys, to more complex components produced by sequential LFW of multiple parts to build up structures.

 In summary this presentation will provide an update on recent Linear Friction Welding developments and their potential economic benefits, aimed at improving product effectiveness and reducing production costs for a wide range of aerospace components.