Gerald Morris
Senior Member
The most effective way to resurface a drum is to have them ground at a machine shop rather then cut.
OK, grinding I know of, and turning them to get them perfectly circular is a must when they warp out of that (if its not too much), but what I'm interested in is a process of re-lining the drum, and bonding that inner lining to the outer drum. Given how cylinder bores can be re-sleeved, it should be feasible enough to sleeve a brake drum. After all, iron's malleability still makes it a most attractive metal for working with.