A three-dimensional inverse problem in estimating the applied heat flux of a titanium drilling - Theoretical and experimental studies

Cheng Hung Huang, Li Chun Jan, Rui Li, Albert J. Shih

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)

Abstract

The applied heat flux on the drilling surface of drilling tool is estimated in the present three-dimensional inverse heat conduction problem. The inverse algorithm utilizing the Steepest Descent Method (SDM) and a general purpose commercial code CFX4.4 is applied successfully in this study based on the simulated and measured temperature distributions with time at four sensors embedded on the drilling surfaces. The numerical experiments are considered at the first stage to illustrate the validity of inverse determination of the unknown heat flux using exact and error measurements. Experimental data are then used to estimate the actual heat flux along the drilling edge at two different drill peripheral cutting speeds. Results of both the numerical and experimental examinations show that the reliable estimated heat flux can be obtained by using the present inverse algorithm.

Original languageEnglish
Pages (from-to)3265-3277
Number of pages13
JournalInternational Journal of Heat and Mass Transfer
Volume50
Issue number17-18
DOIs
Publication statusPublished - 2007 Aug 1

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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