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11-26-2022, 10:27 AM | #1 |
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Original Model a crankshaft material
Were the original crankshafts cast or forged?
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If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn! Last edited by katy; 11-26-2022 at 10:28 AM. Reason: Correction |
11-26-2022, 11:19 AM | #2 |
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Re: Original Model a crankshaft material
Forged you can see the process in some of the early rouge plant footage
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11-26-2022, 12:19 PM | #3 |
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Re: Original Model a crankshaft material
Thanks
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If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn! |
11-26-2022, 12:33 PM | #4 |
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Re: Original Model a crankshaft material
All T, A, B, C and V8 cranks to about 1934 (?) were forged.
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11-26-2022, 12:45 PM | #5 |
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Re: Original Model a crankshaft material
The good news is forgings are very strong with superior fatigue life due to their continuous micro grain structure. The bad news is machining a forging ruins its grain structure continuity which causes stress risers and reduced fatigue life. Castings are typically not as durable as forgings, but grain structures are not an issue in castings.
Castings allow more complex shapes which makes them less expensive to manufacture. However, metallurgy plays a larger role in the ruggedness of castings.
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Bob Bidonde Last edited by Bob Bidonde; 11-27-2022 at 10:28 AM. |
11-26-2022, 01:08 PM | #6 |
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Re: Original Model a crankshaft material
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11-27-2022, 08:48 AM | #7 | |
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Re: Original Model a crankshaft material
Quote:
Additionally, because this drawing was just a final clean-up of other revision drawings, you would need to refer back to EI #s 12200 and 17014 to find what changes were being made. . . . . |
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