Innovation and Transfer of U.S. Air Force Manufacturing Technology (1981) / Chapter Skim
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Appendix C: Advanced Composite Tape-Laying Head
Appendix C: Advanced Composite Tape-Laying Head
Pages 36-44
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From page 36... ...
Accordingly, the processes to manufacture composite components have been highly unstable. Nevertheless there has been a great deal of pressure to stabilize production processes because composite materials offer immediate performance benefits in aircraft.
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From page 37... ...
7. The chief concepts of the advanced composite tape laying technology are the computer-controlled handling, laying up, cutting, and compaction of composite tapes.
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From page 38... ...
The result has been that the previous suppliers perceived smaller markets and became less willing to commit themselves to equipment design without charging custom prices. The Air Force Materials Laboratory began to sponsor development of composite production technology in the mid-1960s when it funded General Dynamics to develop and improve its f irst composite tape-laying machine.
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From page 39... ...
The case described here is a program to improve still further the General Dynamics advanced compos ite tape laying head, one of the first projects funded under the AEML manufacturing technology group's composites production integration program. General Dynamics General Dynamics (see description in Appendix B)
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From page 40... ...
The embodiment of this philosophy was a system using ply-on-ply, near net shape laminates with automatic process control. As the F-16 production program began in 1976, the Air Force funded General Dynamics to develop new manufacturing concepts for tape laying to overcome the drawbacks of its previous tape layers and provide for a f ully automated composite production system.
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From page 41... ...
Grumman Grumman thee description in Appendix B) , like General Dynamics, bad pursued mechanization followed by automation of composite production since the early days of composite materals availability.
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From page 42... ...
The raw material cost in broadgoods form, which it also calculated at a 10 percent total cost differential from tape, was a factor; but it seemed likely that McDonnell could eventually begin to make its own broadgoods in the 1 2-foot long bites that seemed optimum for the type of nesting McDonnell typically did. McDonnell 's immediate reason for non-adoption of the General Dynamics or other tape layers was its dissimilar manufacturing philosophy.
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From page 43... ...
not pursued the idea of ~ tape layer. ~ ~ Consequently it has bike Grumman it has received ANAL support for an integrated composites production facility, but its approach to the concept has been much dif ferent.
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From page 44... ...
1976 The AFML sponsors General Dynamics in another tape laying head improvement, this time under heading of integrated composite production. 1 977 Grumman gets contract f ram the AFML for application of ILC ideas to B-1 stabilizer and Northrop receives support for its IFAC (Integrated Fabrication for Advanced Composites)
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