NASA'S Role in Aeronautics A Workshop (1981) / Chapter Skim
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THE OUTLOOK FOR METALLIC MATERIALS
THE OUTLOOK FOR METALLIC MATERIALS
Pages 65-70
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From page 65... ...
The current boom in the aerospace industry has seen a period of metallic raw materials allocations and for wrought alloy producers lead times measured in months, even years (rather than weeks)
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From page 66... ...
The private sector has responded to this situation. Both primary metallic raw materials producers and wrought alloy producers have announced expansion plans.
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From page 67... ...
Tantalum The demand for highly efficient, yet miniaturized, circuitry for electronic control devices in applications ranging from defense and automobiles to household smoke detectors and electronic games has placed unprecedented demand on the limited availability of tantalum. Tantalum powder prices have escalated by a factor of five.
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From page 68... ...
The basic lesson to be learned from this experience is that, in substituting metallic systems in aerospace applications, where the combination of properties required is very specific and very demanding, it is not practical to amass a storehouse of knowledge to deal with every substitution possibility that might be needed. What is needed is more basic scientific data that can be used by researchers to speed up the process of alloy development.
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From page 69... ...
First, materials suppliers can provide product forms and physical characteristics that would be amenable to the new designs and, in some cases, to new manufacturing practices to make the newly designed components. Indeed, we as suppliers of hi^h-performance alloy sheet, bar, plate, wire, and tubing can envision that we could add to that list certain fabricated forms that lend themselves to production in large-scale equipment that we would add to our conventional wrought alloy mill equipment.
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From page 70... ...
For this to happen, complete cooperation of three groups is mandatory. -- First, the alloy producer. He must segregate his internally generated scrap and develop techniques and proceduras for melting purchased scrap in grade and encourage his customer to return scrap in grade by paying good prices for segregated scrap.
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