An Analytical Model for Cyclic Chip Formation in 2-D Machining with Chip Breaking

X. D. Fang, I. S. Jawahir

Research output: Contribution to journalArticlepeer-review

31 Scopus citations


This paper presents a new analytical model for 2-D machining involving a cyclic chip formation process due to chip breaking. This model includes a chip/work contact force at the free-end of the curled chip which contributes to the development of a bending moment in the chip. Chip breaking occurs when the bending moment and the corresponding chip strain reach maximum. The model provides a predictive capability for forces acting on the chip, bending moment, chip thickness, chip velocity, tool-chip contact length, shear angle, friction angle, etc. for a given set of input conditions such as the work material, cutting conditions, tool rake angle and chip-work friction conditions. Oxley's machining theory was used for predicting the work material shear flow stress at the shear plane. The present work provides a deeper insight into the chip breaking process in machining.

Original languageEnglish
Pages (from-to)53-58
Number of pages6
JournalCIRP Annals - Manufacturing Technology
Issue number1
StatePublished - 1996

Bibliographical note

Funding Information:
The authors gratefully acknowledge Dr. P. Mathew, University of New South Wales, Australia, for providing the predicted initial process variables from Professor P. L. B. Oxley's theory [18]. Research support provided by the Center for Robotics and Manufacturing Systems at the University of Kentucky for this project is also acknowledged by the authors.


  • Chip Breaking
  • Machining
  • Predictive Model

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


Dive into the research topics of 'An Analytical Model for Cyclic Chip Formation in 2-D Machining with Chip Breaking'. Together they form a unique fingerprint.

Cite this