Force model for chip breaking in orthogonal machining

B. K. Ganapathy, I. S. Jawahir

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations


The present tendency towards increased automation of metal cutting operations has resulted in a great emphasis on the monitoring and prediction of chip breakability. In order to better understand the mechanism of chip breaking, it is first necessary to have quantitative information about all the forces acting on the chip, within a chip breaking cycle. Conventional cutting force models do not permit such a study, since they assume a continuous mode of chip formation, where the contact action of the free-end of the chip is ignored in all analyses. The new cutting force model proposed in this work is applicable to the problem of two-dimensional chip breaking in orthogonal machining. A methodology to determine the forces acting on the chip, including the contact force developed due to the free-end of the chip touching the workpiece, has been formulated using both experimental and estimation techniques. Orthogonal cutting tests were conducted to obtain two dimensional chip breaking. The experimentally obtained cutting forces show a good correlation with the estimated cutting forces. Using the proposed methodology, the forces acting on the chip were determined. Results show that these forces, while exhibiting cyclic variations, enable the identification of the chip breaking event.

Original languageEnglish
Title of host publicationManufacturing Science and Engineering
EditorsK.F. Ehmann
Number of pages214
StatePublished - 1993
EventProceedings of the 1993 ASME Winter Annual Meeting - New Orleans, LA, USA
Duration: Nov 28 1993Dec 3 1993

Publication series

NameAmerican Society of Mechanical Engineers, Production Engineering Division (Publication) PED


ConferenceProceedings of the 1993 ASME Winter Annual Meeting
CityNew Orleans, LA, USA

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Mechanical Engineering


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