The link between plasticity parameters and process parameters in orthogonal cutting

Mathias Agmell, Aylin Ahadi, Jan Eric Ståhl

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

In the present study the plasticity parameters in the Johnson Cook plasticity model are determined on the basis of process parameters in orthogonal cutting by use of inverse analysis. Previously established links between material parameters and process parameters in the cutting process such as chip thickness ratio, cutting forces, temperatures, deformation zones, is used serve as a starting point in the inverse analysis. The material AISI 4140 is simulated using the model employed in [1], the Johnson Cook parameters being changed within an interval of ±30 %. The inverse analysis is performed using a Kalman filter. The material model for the reference point is validated on the basis of the experimental results in [1], the model being shown to predict the process parameters with a high level of accuracy. The attempt is made to establish a link for materials having cutting process characteristics that are similar between certain process parameters and the Johnson Cook parameters in order to be able to predict the input parameters to FEM models using experimental data from a cutting process.

Original languageEnglish
Title of host publication14th CIRP Conference on Modeling of Machining Operations (CIRP CMMO)
PublisherElsevier
Pages224-229
Number of pages6
Volume8
DOIs
Publication statusPublished - 2013 Jan 1
Event14th CIRP Conference on Modeling of Machining Operations, CIRP CMMO 2013 - Turin, Italy
Duration: 2013 Jun 132013 Jun 14

Publication series

NameProcedia CIRP
PublisherElsevier
ISSN (Print)2212-8271

Conference

Conference14th CIRP Conference on Modeling of Machining Operations, CIRP CMMO 2013
Country/TerritoryItaly
CityTurin
Period2013/06/132013/06/14

Subject classification (UKÄ)

  • Production Engineering, Human Work Science and Ergonomics

Free keywords

  • Inverse analysis
  • Johnson-Cook
  • Kalman filter
  • Orthogonal cutting

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