Modeling and analysis of internal thread forming

Sameer Chowdhary, Shiv Gopal Kapoor, O. Burak Ozdoganlar, Richard E. DeVor

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


This paper presents a mechanistic model for the prediction of thrust and torque experienced by a forming tap during an internal thread forming process. The model relates the forces to the area of contact between the tool and the workpiece. Experiments are conducted to calibrate and validate the model. The model-predicted thrust and torque values compare favorably with the experimental values. Sensitivity analysis was conducted to examine the effect of relief and entry taper angles on the forces generated during the process.

Original languageEnglish (US)
Title of host publicationTechnical Paper - Society of Manufacturing Engineers. MR
Number of pages8
StatePublished - 2002
EventNAMRC XXX - West Lafayette, ID, United States
Duration: May 21 2002May 24 2002


Country/TerritoryUnited States
CityWest Lafayette, ID


  • Mechanistic modeling
  • Tapping torque and thrust
  • Thread forming

ASJC Scopus subject areas

  • Engineering(all)


Dive into the research topics of 'Modeling and analysis of internal thread forming'. Together they form a unique fingerprint.

Cite this