Fabrication and Evaluation of Diffusion-Bonded Laminated Sections.
Abstract
Diffusion bonding of liminated titanium structural shapes was demonstrated. Initially, bonding parameters and procedures were identified for 6Al-6V-2Sn titanium alloy and applied to the fabrication of five full-scale F-104 fuselage ring fitting shapes weighing approximately 60 pounds each. Evaluation of these fittings by mechanical testing of coupons and by structural static and fatigue testing of full-scale fittings demonstrated feasibility of the process. Test results indicated the properties of the diffusion-bonde fittings to be equivalent, or superior, to the properties of comparable forgings. Based on the satisfactory results obtained, a second-phase effort was undertaken which demonstrated scale-up of the diffusion-bonding process to produce a large, complex, titanium shape - the Sikorsky Aircraft H-53 helicopter main rotor hub. Diffusion-bonding parameters and procedures were identified for 6Al-4V titanium alloy and applied to the fabrication of four precision titanium rotor hub shapes. The diffusion-bonded hubs weighed approximately 400 pounds each and amply demonstrated scale-up of the manufacturing process. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1971
- Accession Number
- AD0887064
Entities
People
- Edward C. Supan
- William D. Padian