Manufacturing Methods and Technology for Processing Cobalt-Samarium Magnets
Technical rept. 15 Nov 1969-15 May 1971
GENERAL ELECTRIC CO SCHENECTADY NY RESEARCH AND DEVELOPMENT CENTER
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Alternative manufacturing methods, processes, and techniques for fabrication of cobalt-samarium magnets were evaluated. A pre-production pilot line capable of producing cobalt-samarium magnets was established. The properties of magnets produced on this pre-production pilot line exceed BH sub max 15 MGOe, B sub r 8.2 kG, H sub c -6.5 kOe, H sub d at BH -12 -5.0 kOe, and irreversible the loss at BH -12 on exposure to 150C less than 10. The cost of magnets produced on this pre-production pilot line was approximately one fourth the cost the same size magnet would be if fabricated from cobalt-platinum. Magnets produced on this pilot line were used to successfully fabricate five traveling wave tubes. The performance of these tubes indicates that cobalt-samarium magnets are suitable for fabrication of traveling waves tubes and, in fact, that they will allow further advances in the state- of-the-art in the design of such tubes.
- Electrical and Electronic Equipment
- Fabrication Metallurgy