Mathematical modeling of cutting forces in micro-drilling

Kumar Sambhav, Puneet Tandon, Shiv Gopal Kapoor, Sanjay G. Dhande

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In drilling, the primary cutting lips and the secondary cutting lips of the drill shear the material while the central portion of the chisel edge indents the workpiece, making the cutting process complex to understand. As we go for micro-drilling, it exhibits an added complexity to the cutting mechanism when the edge radius gets comparable to chip thickness at low feeds. The presented work models the forces by the primary cutting lip of a micro-drill analytically using slip-line field that includes the changes in the effective rake angle and dead metal cap during cutting for cases of shearing as well as ploughing. To study the variation of forces experimentally, the primary cutting lip and chisel edge forces are separated out by drilling through pilot holes of diameter slightly above the drill-web thickness. Finally, the analytical and experimental results have been compared and the model has been calibrated.

Original languageEnglish (US)
Title of host publicationASME 2012 International Manufacturing Science and Engineering Conference Collocated with the 40th North American Manufacturing Research Conf. and in Participation with the Int. Conf., MSEC 2012
Pages979-985
Number of pages7
DOIs
StatePublished - Dec 1 2012
EventASME 2012 International Manufacturing Science and Engineering Conference, MSEC 2012 Collocated with the 40th North American Manufacturing Research Conference and in Participation with the International Conference - Notre Dame, IN, United States
Duration: Jun 4 2012Jun 8 2012

Publication series

NameASME 2012 International Manufacturing Science and Engineering Conference Collocated with the 40th North American Manufacturing Research Conference and in Participation with the Int. Conf., MSEC 2012

Other

OtherASME 2012 International Manufacturing Science and Engineering Conference, MSEC 2012 Collocated with the 40th North American Manufacturing Research Conference and in Participation with the International Conference
CountryUnited States
CityNotre Dame, IN
Period6/4/126/8/12

Keywords

  • Cutting edge radius
  • Indentation
  • Micro-drilling
  • Ploughing
  • Slip-line

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

Fingerprint Dive into the research topics of 'Mathematical modeling of cutting forces in micro-drilling'. Together they form a unique fingerprint.

Cite this