TUNGSTEN INERT GAS SPOT BRAZING,
Abstract
At any time during fabrication using either resistance or fusion welds, annealing takes place in the weld spot. In spot brazing, the tungsten arc causes fusion in the top member or bracketry and generates sufficient heat to melt the braze foil sandwiched between the bracket and missile skin to create a bond. Experiments in the development of this technique indicated the standard spot gun equipment was most suitable. Cleaning of materials before joining presented several problems. Etching gave the best results in this respect, but was not the most practical. Degreasing, sanding and dry air from a hair dryer to rid parts of dust proved to be the best method. An evaluation of six different braze alloys using .020 inches thickness material was made and the two that performed the best were used for tests. Results of these tests have been tabulated within the report. It is concluded that with properly made brazed spots, bracketry can be subsequently removed from the missile skin if required, without damage resulting to either bracketry or missile skin. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1961
- Accession Number
- AD0677555
Entities
People
- C. P. Davis
Organizations
- General Dynamics