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7 Cards in this Set
- Front
- Back
How do you work harden a piece of metal? |
By cold working |
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Whats the difference between thermosetting and thermoplastic resin? |
Thermosetting resin doesn't soften when heated and chars or burns rather than melting, thermoplastic resin becomes soft and pliable when heated and hardens when cooled. |
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What are thermoplastic and thermosetting resins commonly used in modern aircraft? |
Thermoplastic resins are commonly used on windshields and windows. Thermosetting resins are most often used in composite structures. |
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Name one of the types of resin commonly used as a matrix material for aircraft composite laminates? |
Polyester resin or epoxy resin. |
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What are some of the materials that are commonly used as the reinforcing component in a composite structure? |
Fiberglass, kevlar, carbon, linen, and paper. |
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What are the reasons that alloy steel that is responsive to heat treatment is usually less suitable for welding? |
It may become brittle and lose its ductility in the area of the weld. |
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What are the advantages of pre impregnated materials. |
1 pre preg fabrics contain the correct amount of matrix. 2 the matrix material evenly and completely permeates the reinforcing fibers. 3 the matrix has the resin and hardener in the correct proportions. |