WHAT IS HEAT TREATING / STRESS RELIEVING?
Any manufactured part has some built in internal stress and brake rotors are no exception. If you were to cut through a brake rotor ,from outside dia. to inside dia., the built up stress would spread the opening many times greater than the width of the saw blade used to cut it. This stress is the kind of thing that we are trying to “normalize” by bedding in new brake rotors on the track. Doing this properly is lucky at best. This process is what warps most new rotors the first few times their used. The most effective way to normalize these stresses is to do it in the controlled environment of a heat treating oven. First the heat is applied gradually to the optimum temperature then cooled slowly while left in the oven. All this is done in an “as cast” condition before any machining is done so as to not affect the final dimensions of the rotor. The final machining is then done and you’re left with an unstressed brake rotor ready for the track. HAPPY BRAKING!!
