Parametric Study of Diffusion Bonded Butt Joints.
Abstract
The objective of this program was to establish adequate technology background to apply continuous seam diffusion bonding to fabricate helicopter rotor spars from Ti-6Al-4V sheet material. The following areas were investigated: identification of the cause of joint failure along original sheet edge; a parametric study to determine the degree of control required to achieve high quality diffusion bonded joints; determination of the tolerance of the process for fit-up, material preparation and contaminants; identification of methods to repair defective joints; and applicability of various nondestructive inspection techniques. Joint quality was determined by various mechanical tests, including bend, tensile and fatigue, metallography and scanning electron microscopy.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1975
- Accession Number
- ADA019450
Entities
People
- A. G. Metcalfe
- E. C. Thorsrud
- M. E. Gulden