Apparatus for Pressure Welding of Titanium Structures with a Controlled Rate of Deformation (Ustanovka Dlya Svarki Davleniem Titanovyykh Panel 'Nykh Konstruktsii pri Kontroliruemoi Skorosti Deformatsii),
Abstract
A technical description is given of equipment for pressure welding of Titanium panel structures of 180 x 200 x 40 mm with preheating and automatic strain rate control. A pressure mechanism allows the welding to be carried out in the strain rate range from 10 to the minus 5 to 10 to the minus 2/s. Results are presented of zero-to-tension low-cycle fatigue tests on butt welded joints of Titanium alloy OT4 obtained on the equipment at the temperature 950C, deformation 3mm, and at various strain rates. A dependence of impact strength of the joints on strain rate for welding temperatures of 900, 920 and 950C is also presented. In existing apparatus for the diffusion bonding of metals the methods used to apply the bonding pressure do not allow control of the rate at which the load is applied. However, the main factors influencing solid state diffusion bonding (SSDB) are the degree of resistance to deformation of the metals being joined and their relaxation properties, which determine the rate of the recovery processes. Great Britain. (jes)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1987
- Accession Number
- ADA195917
Entities
People
- A. S. Tikhonov
- B. A. Matyushkin
- E. M. Dzneladze
- M. Kh. Shorshorov
- V. V. Redchits
Organizations
- Royal Aircraft Establishment