DEVELOPMENT OF TECHNIQUES FOR THE EXTRUSION OF BERYLLIUM TUBING
Three sizes of tubing were produced: 0.40 x 0.03, 0.75 x 0.03, and 0.75 in. OD x 0.10 in. wall. Two methods of extrusion were used. In one, the filled billet method, the hollow beryllium core in the extrusion billet was filled with a steel filler that was removed after extrusion. In the other method, a hardened steel mandrel was used to form and control the ID of the tube. Extrusion billets were prepared from the starting material, Brush--200 mesh QMV powder, in three ways: powder was packed cold into the extrusion billet can; powder was packed cold into a can, pre-extruded, and machined into extrusion billet cores; and powder was packed cold into a can, hot compacted, and machined into extrusion billet cores. The latter method was used for most of the extrusions. The production of the small-size tubing, 0.4 in. OD x 0.03 in. wall, was studied the most extensively. (P.C.H.)
- Research Organization:
- Nuclear Metals, Inc., concord, Mass.
- NSA Number:
- NSA-16-027604
- OSTI ID:
- 4803534
- Report Number(s):
- NMI-2602
- Country of Publication:
- United States
- Language:
- English
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