BERYLLIUM JOINING WADC SPONSORED PROGRAM. Quarterly Progress Report No. 2
Preliminary work on the joining of beryilium to itself by braze welding and fusion welding has indicated that successful braze welds can be made between 1/8-in. thick beryllium plates by placing strips of an aluminum12 wt. % silicon alloy between them and passing an a-c argon-shielded tungsten arc along the joint. During this kind of braze welding, the beryllium plate alloys with the filler metal so that the fusion zone consists of a beryllium-aluminum-silicon alloy. Beryllium can be protected adequately from oxidation during fusion welding by welding in an atmosphere dry box filled with dried and purified argon. Dried and purified argon flows through the torch during welding. Preliminary results indicate that cracking and hot tearing are substantially reduced by preheating the beryllium to 1200 F before welding, although much porosity is present. (auth)
- Research Organization:
- Avco Mfg. Corp. Research and Advanced Development Div., Wilmington, Mass.
- NSA Number:
- NSA-13-012682
- OSTI ID:
- 4240643
- Report Number(s):
- RAD-SR-8-59-7
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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