Modeling subsurface deformation induced by machining of Inconel 718

Research output: Contribution to journalArticle


Traditionally, the development and optimization of the machining process with regards to the subsurface deformation are done through experimental method which is often expensive and time consuming. This article presents the development of a finite element model based on an updated Lagrangian formulation. The numerical model is able to predict the depth of subsurface deformation induced in the high- speed machining of Inconel 718 by use of a whisker-reinforced ceramic tool. The effect that the different cutting parameters and tool microgeometries has on subsurface deformation will be investigated both numerically and experimentally. This research article also addresses the temperature distribution in the workpiece and the connection it could have on the wear of the cutting tool. The correlation of the numerical and experimental investigations for the subsurface deformation has been measured by the use of the coefficient of determination, R2. This confirms that the finite element model developed here is able to simulate this type of machining process with sufficient accuracy.


External organisations
  • Linköping University
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Manufacturing, Surface and Joining Technology


  • FEM, Inconel 718, machining, subsurface deformation
Original languageEnglish
Pages (from-to)103-120
Number of pages18
JournalMachining Science and Technology
Issue number1
Publication statusPublished - 2017 Jan 2
Publication categoryResearch