Discovering shadow-hardened mainsprings generally is a tough activity, however a number of strategies can be utilized.
Shadow-hardened mainsprings are manufactured from metal that has been hardened by heating it to a excessive temperature after which quenching it in oil. This course of provides the metal a martensitic microstructure, which may be very onerous and wear-resistant. Shadow-hardened mainsprings are sometimes utilized in high-performance purposes, corresponding to firearms and racing engines.
