Title: Production of beryllium reinforced composite solid and hollow shafting

Abstract: Manufacturing process for a solid or hollow shaft consisting of aluminum or itanium with beryllium reinforcing therein. Beryllium rods are either clad with aluminum or titanium or, in the alternative, holes are drilled in an aluminum or titanium block which beryllium material is thereafter inserted into the holes. The preform with a hard steel central mandrel around which the beryllium rods are positioned is placed within a steel can and heated to a predetermined temperature. Pressure is then uniformly applied to outer circumference of the can to ensure uniform deformation of the beryllium reinforcement. The uniform exterior pressure on the outer surfaces of the beryllium rods and the interior pressure on these rods caused by the hard steel mandrel against the under surfaces of the rods as a result of a reduction process causes the beryllium rods to assume an arcuate ribbon configuration. For hollow shafting, the mandrel at the center of the preform may later be removed.

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Inventors: Schmidt, Richard (McLean, VA, US)

Application Number: 559360
Filing Date: 1975-03-17
Publication_date: 1976-03-23
Assignee: The United States of America as represented by the Secretary of the Navy (Washington, DC)
Primary Class(es): 228/126 164/108, 228/156, 428/614, 428/649, 428/650, 428/660, 428/684
Other Classes:
US Patent Ref:

3419951	Jan, 1969	Carlson	228/107.
3419952	Jan, 1969	Carlson	228/164.
3455662	Jul, 1969	Alexander et al.	29/191.
3505039	Apr, 1970	Roberts et al.	29/191.
3567507	Mar, 1971	Yoblin	29/191.
3609855	Oct, 1971	Schmidt	228/193.
3667108	Jun, 1972	Schmidt	228/170.

Other Refs:
Primary Examiner: Shore, Ronald J.
Assistant Examiner: Hampilos, Gus T.
Attorney: Sciascia; R. S., Beers; R. F., Schneider; P.