ABSTRACT
The quality of a machined surface is becoming important to satisfy the increasing demands of component performance and reliability. Machined parts used in military, aerospace, and automotive industries are subjected to high stresses, temperatures, and hostile environments. The dynamic loading and design capabilities of machined components are limited by the fatigue strength of the material, which is commonly linked to the fatigue fractures that always nucleate on or near the surface of the machined components. Stress corrosion resistance is another important material property that can be directly linked to the machined surface characteristics. When machining any component, it is necessary to satisfy the surface technological requirements in terms of high product accuracy, good surface nish, and a minimum of drawbacks that may arise as a result of possible surface alterations by the machining process. The nature of the surface layer has a strong in uence on the mechanical properties of the part.
