Journal of Materials Engineering and Performance

, Volume 3, Issue 1, pp 151–158 | Cite as

On the closed form mechanistic modeling of milling: Specific cutting energy, torque, and power

  • A. E. Bayoumi
  • G. Yücesan
  • D. V. Hutton
Shaping and Forming


Specific energy in metal cutting, defined as the energy expended in removing a unit volume of workpiece material, is formulated and determined using a previously developed closed form mechanistic force model for milling operations. Cutting power is computed from the cutting torque, cutting force, kinematics of the cutter, and the volumetric material removal rate. Closed form expressions for specific cutting energy were formulated and found to be functions of the process parameters: pressure and friction for both rake and flank surfaces and chip flow angle at the rake face of the tool. Friction is found to play a very important role in cutting torque and power. Experiments were carried out to determine the effects of feedrate, cutting speed, workpiece material, and flank wear land width on specific cutting energy. It was found that the specific cutting energy increases with a decrease in the chip thickness and with an increase in flank wear land.


milling modeling specific cutting energy torque power tool wear 


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Copyright information

© ASM International 1994

Authors and Affiliations

  • A. E. Bayoumi
    • 1
  • G. Yücesan
    • 1
  • D. V. Hutton
    • 1
  1. 1.Department of Mechanical and Materials EngineeringWashington State UniversityPullman

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