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Wednesday, June 27, 2007 - 9:00 AM
TAL3.2

Electron Beam Free Form Fabrication Processing Methods: State of The Technology

K. W. Lachenberg, S. D. Stecker, R. C. Salo, Sciaky, Inc., Chicago, IL

Abstract: Electron Beam Free Form Fabrication is a process that utilizes proven EB Welding Technology to create metallic parts using an additive layering method to produce near-net-shape preforms using high deposition rates.  This process is ideally suited to a wide range of aerospace materials including many reactive and refractory alloys.   

 

The aerospace industry has been challenged in procuring many structural components.  Lead times in the Ti industry, for example, have been driven by material availability and processing limitations that force customers to wait 12 to 24 months until completion.  Through the use of generic raw materials and simplified tooling, EBFFF promises great potential for significant reductions in lead times. High value low volume structural assemblies appear to be ideally suited to the EBFFF process. 

 

This presentation will focus on recent experience with the fabrication of Ti-6Al-4V aerospace components using Sciaky’s EBFFF equipment. Successes and challenges will be reviewed as they pertain to programming, distortion control, metallurgical tests and general process improvements in recent months.


Summary: Abstract: Electron Beam Free Form Fabrication is a process that utilizes proven EB Welding Technology to create metallic parts using an additive layering method to produce near-net-shape preforms using high deposition rates. This process is ideally suited to a wide range of aerospace materials including many reactive and refractory alloys. The aerospace industry has been challenged in procuring many structural components. Lead times in the Ti industry, for example, have been driven by material availability and processing limitations that force customers to wait 12 to 24 months until completion. Through the use of generic raw materials and simplified tooling, EBFFF promises great potential for significant reductions in lead times. High value low volume structural assemblies appear to be ideally suited to the EBFFF process. This presentation will focus on recent experience with the fabrication of Ti-6Al-4V aerospace components using Sciaky’s EBFFF equipment. Successes and challenges will be reviewed as they pertain to programming, distortion control, metallurgical tests and general process improvements in recent months.