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Optimisation de la performance d'usinage dans le tournage assisté par haute pression d'un alliage de Ti6A14V.

Optimization of machining performance in high-pressure assisted turning of Ti6A14V alloy.

Auteurs : ÇOLAK O.

Type d'article : Article

Résumé

In this study, a genetic algorithm has been employed to determine optimum cutting parameters in the turning of TI6A14V alloy under conventional and high pressure cooling conditions. Three machining performance measures, i.e. surface roughness, material removal rate and cutting power, are considered as optimization criteria. First, with multi-regression analysis of experimental responses, empirical equations are defined and, by using these equations, objective functions are constructed for each pressure level, based on a hybrid model. Objective functions are maximized by means of a genetic algorithm and optimum machining parameters are determined. Moreover, tool wear tests are carried out at a cutting condition that is close to the optimum machining parameters. Optimization results show that optimum cutting parameters and their responses, particularly in P = 6 and 150 bar cooling conditions, are quite similar but tool life is significantly different. Maximum tool life is achieved in the highest pressure level (P = 300 bar).

Documents disponibles

Format PDF

Pages : 675-681

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Optimization of machining performance in high-pressure assisted turning of Ti6A14V alloy.
  • Identifiant de la fiche : 30013103
  • Langues : Anglais
  • Source : Strojniski vestnik - Journal of mechanical Engineering - vol. 60 - n. 10
  • Date d'édition : 10/2014
  • DOI : http://dx.doi.org/10.5545/sv-jme.2013.1079

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