How are brake drums made ?

67Dart273 said

I've turned LOTS of drums. Not uncommon to see steel center, cast drum. Some had little "fingers" that became exposed when turning. Almost as if the steel center was laid into a form when the rest of the drum was cast. I have no idea. I don't recall ever seeing an all steel drum

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Thanks. I have looked at several movies on youtube, but non are for brake drums for a 1965 Dodge Dart with 9 inch brakes. :D They are mostly for how large truck brake drums are made, I mean like commercial large size trucks and buses. In addition to my car hobby I have had Ferguson farm tractors as a hobby, and those have 14 x 2 inch drum brakes, and those are completely cast, both the outer ring and the center of it. Cast in one piece, but the center is rather thick. Not like on my "baby Dodge" as my wife call my car.

Putting the steel plate center in the sand form sounds like a way that might work. I never thought of that.

Bill