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Title
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Development Of Improved Liner For Extrusion Billet Containers
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Date
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1964
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Index Abstract
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Not Available
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Photo Quality
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Complete
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Report Number
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ML TDR 64-194
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Creator
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Spachner, Sheldon A.
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Corporate Author
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IIT Research Institute
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Laboratory
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Air Force Materials Laboratory
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Extent
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156
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Identifier
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AD0604172
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Access Rights
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OTS
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Distribution Classification
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1
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Contract
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AF 33(657)-8784
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DoD Project
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7-945
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DTIC Record Exists
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No
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Distribution Change Authority Correspondence
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None
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Abstract
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A program was carried out to secure an improvement of extrusion container liner performance and life for metal extrusion effected in the 2000 - 3400F temperature range. Liner-support tooling was developed to permit use of superalloy, ceramic-coated tool steel, and solid ceramics as liner materials capable of withstanding 180,000 psi stem pressure. The tooling utilized liner-sleeve assemblies which were not shrink-fitted in the container and could quickly be interchanged. Prototype extrusion liners of Rene 41 and Udimet 700 superalloys, and a variety of both Rokide-process and plasma-arc-ceramic coated liners, were produced and evaluated. Compositions of fibermetal reinforced ceramic materials specially designed for liner application, were produced and evaluated by extrusionscreening test. A Rokide-process stabilized zirconia ceramic-coated liner withstood TZM alloy extrusion at 3450F. Plasma-arc coatings of stabilized zirconia, and gradated alumina-nickel, and cast Udimet 700 alloy, proved satisfactory for steel extrusion at 2000F. Fiber metal reinforced ceramic mixtures of 72A12O3-28Mo and 59.5A12O3-40.5Mo proved capable of withstanding billet temperatures of 3450F.
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Report Availability
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Full text available
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Corporate Report Number
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IITRI-B244-18
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Date Issued
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1964-05
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Provenance
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Lockheed Martin Missiles & Fire Control
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Type
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report
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Format
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1 online resource
MLTDR64-194.pdf