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U.S. Department of Energy
Office of Scientific and Technical Information

TECHNIQUES FOR EXTRUSION OF SMALL-DIAMETER REFRACTORY METAL TUBE BLANKS

Technical Report ·
DOI:https://doi.org/10.2172/4078943· OSTI ID:4078943
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