遼字石油化工大學⊙ TABLE 2.1 Factors Influencing Machining Operations Parameter Influence and interrelationship Cutting speed, depth of cut Forces, power, temperature rise, tool life, type of chip, feed, cutting fluids surface finish and integrity Tool angles As above; influence on chip flow direction; resistance to tool wear an nd chipping Continuous chir Good surface finish; steady cutting forces; undesirable, especially in automated machinery Built-up edge chip Poor surface finish and integrity; if thin and stable, edge can protect tool surfaces Discontinuous chip Desirable for ease of chip disposal; fluctuating cutting forces: can affect surface finish and cause vibration and chatter Temperature rise Influences tool life, particularly crater wear and dimensional accuracy of workpiece; may cause thermal damage to workpiece surface Tool wear Influences surface finish and integrity, dimensional accuracy, temperature rise, forces and power Machinability Related to tool life, surface finish, forces and pe d type of chipTABLE 2.1