TECHNIQUES FOR EXTRUSION OF SMALL-DIAMETER REFRACTORY METAL TUBE BLANKS
An alternate approach to mandrel extrusion was investigated for extruding a tube with an ID of 1/2 in. or smaller. A co-extrusion technique that incorporates an internal core in the billet that reduces proportionately with the refractory metal sleeve is discussed. The advantages and disadvantages of mandrel-less extrusion techniques and relation of mandrel-less extrusion techniques to secondary fabrication operations are discussed. It was concluded that use of a co-extrusion technique with a deformable core material eliminates the use of a mandrel, ID contamination and lubrication, and results in a smaller diameter extruded tube. (P.C.H.)
- Research Organization:
- Argonne National Lab., Argonne, IL (US)
- DOE Contract Number:
- W-31109-ENG-38
- NSA Number:
- NSA-18-014422
- OSTI ID:
- 4078943
- Report Number(s):
- CONF-373-8
- Country of Publication:
- United States
- Language:
- English
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