Machinability of Gray and Ductile Irons (An Orthogonal Approach of Experimentation)

Values for Shear stress, Specific power and Energy for gray and ductile cast irons have been determined using two orthogonal machining setups. Procedures for determining machinability by tool life testing are reviewed, and compared to orthogonal machining methods. A new method which will produce very precise values for shear stress, specific power and energy is described.