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Iterative surface warping to shape craters in micro‐EDM simulation

Article dans une revue avec comité de lecture
Auteur
SURLERAUX, Anthony
303638 Cardiff University
PERNOT, Jean-Philippe
178374 Laboratoire des Sciences de l'Information et des Systèmes : Ingénierie Numérique des Systèmes Mécaniques [LSIS- INSM]
ELKASEER, Ahmed
424972 Port Said University
BIGOT, Samuel
303638 Cardiff University

URI
http://hdl.handle.net/10985/11344
Date
2016
Journal
Engineering with Computers

Résumé

This paper introduces a new method for simulat- ing the micro-EDM process in order to predict both the tool’s wear and the workpiece’s roughness. The tool and workpiece are de ned by NURBS patches whose shapes result from an iterative crater-by-crater deformation technique driven by physical parameters. Through hundreds of thousands of local surface warping, the method is able to compute the global as well as the local shapes of the tool and workpiece. At each step, the warping vector and function are computed so as to be able to generate a spherical crater whose volume is also controlled. While acting very locally to simulate the real physical phenomenon, not only the method can evaluate the tool’s wear from the overall nal shape at a low resolu- tion level, but it can also estimate the workpiece’s roughness from the high resolution level. The simulation method is validated through a comparison with experimental data. Dif- ferent simulations are presented with an increase in compu- tation accuracy in order to study its in uence on the results and their deviation from expected values.

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Documents liés

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  • Micro-EDM numerical simulation and experimental validation 
    Communication avec acte
    BIGOT, Samuel; SURLERAUX, Anthony; ELKASEER, Ahmed; ccPERNOT, Jean-Philippe (2013)
    This paper introduces a new method for simulating the micro-EDM process in order to predict tool wear. The tool and workpiece are defined by NURBS surfaces whose shapes result from an iterative crater-by-crater deformation ...
  • Estimating the exchanged energy distribution in micro-EDM 
    Communication avec acte
    BIGOT, Samuel; D'URSO, Gianluca; MERLA, Cristina; PEYROUTET, Jérémy; SURLERAUX, Anthony; ccPERNOT, Jean-Philippe (2014)
    This paper presents a new approach for the recording of the total quantity of energy exchanged during the micro Electro Discharge Machining (EDM) process. In particular, this approach allows for the estimation of the ...
  • Computer-aided Micro-EDM die-sinking tool design optimisation 
    Article dans une revue avec comité de lecture
    SURLERAUX, Anthony; LEPERT, Romain; BIGOT, Samuel; ccPERNOT, Jean-Philippe (Future Technology Press, 2015)
    This paper describes a new efficient method for computer aided optimisations of micro EDM die sinking tools, which can be used for design optimisation and performance verification in the digital domain. This would facilitate ...
  • Machine Learning-Based Reverse Modeling Approach for Rapid Tool Shape Optimization in Die-Sinking Micro Electro Discharge Machining 
    Article dans une revue avec comité de lecture
    SURLERAUX, Anthony; LEPERT, Romain; KERFRIDEN, Pierre; BIGOT, Samuel; ccPERNOT, Jean-Philippe (ASME, 2020-06)
    This paper focuses on efficient computational optimization algorithms for the generation of micro electro discharge machining (µEDM) tool shapes. In a previous paper, the authors presented a reliable reverse modeling ...
  • Using voxels in the simulation of manufacturing processes 
    Communication avec acte
    SURLERAUX, Anthony; BIGOT, Samuel; D'URSO, Gianluca; MERLA, Cristina; ccPERNOT, Jean-Philippe (2015)
    The present paper introduces the use of voxels embedded in an octree structure in order to numerically simulate manufacturing processes. In particular, micro electrical discharge machining (μEDM) is used here as a case ...

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