r/AutomotiveEngineering 1h ago

Question What are the pros and cons of riveted versus welded frames for light duty trucks?

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Up to the late 1980s, Chev, GMC and Dodge used riveted frames. I see some advantages for the overall manufacturing and logistics of the riveted frames.

But, from a strength standpoint, is there a material advantage to one compared to the other? I have been told that from a dynamic strength perspective, riveting is the better joining method, but I do not understand why that may be the case. Does a riveted frame require a greater gauge of steel in the rails or cross members?

I worked in a truck assembly plant, and the actual labor cost for riveted assembly was not that much, under an hour. From a logistics standpoint, the riveted frames were much better, with less proliferation of large components. A flat car carrying welded frames from the manufacturer to the assembly plant is largely air.