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Thermal exchange effects on steel thixoforming processes

Article dans une revue avec comité de lecture
Auteur
ccBECKER, Eric
ccLANGLOIS, Laurent
107452 Laboratoire de Conception Fabrication Commande [LCFC]

URI
http://hdl.handle.net/10985/9061
DOI
10.1007/s00170-009-2353-8
Date
2010
Journal
International Journal of Advanced Manufacturing Technology

Résumé

Steel thixoforging is an innovative semi-solid forming process. It allows the manufacturing of complex parts and minimises the forming load. This work aims to identify and characterise the main feature zones of a thixoforging part. The material flow and the forging load are dependent on the thixoforging speed, the tool temperature and the initial temperature of the slug. The data are obtained for C38 thixoforging steel. A specific extrusion tool was designed that integrates the heating of the tool and the slug. This tool was set up on a high-speed hydraulic press. This work highlights the effects of heat exchange on the microstructure, the internal flow and the mechanical characteristics of thixoforging material. These heat exchanges depend primarily on the working speed and tool temperature. The internal flow is composed of three distinct zones. Among them, only semisolid zone is observed during working. The microstructures of thixoforming C38 steel consist of ferrite, pearlite and bainite.

Fichier(s) constituant cette publication

Nom:
LCFC_IJAMT_2010_BECKER.pdf
Taille:
1.229Mo
Format:
PDF
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  • Laboratoire de Conception Fabrication Commande (LCFC)

Documents liés

Visualiser des documents liés par titre, auteur, créateur et sujet.

  • Application of X-ray Microtomography to Quantify the Liquid Fraction of M2 Steel for Semi-solid Forming process 
    Communication avec acte
    GU, Guochao; ccBECKER, Eric; ccPESCI, Raphaël; ccLANGLOIS, Laurent (2013)
    Thixoforging, one variant of semi-solid metal processing in which the metallic alloys are processed at low liquid fraction (0.1< Fl < 0.3), is used to produce complex parts with high mechanical properties. Steel thixoforging ...
  • Determination of quantity and localization of liquid in the semi-solid state using both 3D X-ray microtomography and 2D techniques for steel thixoforming 
    Communication avec acte
    GU, Guochao; ccBECKER, Eric; ccPESCI, Raphaël; ccLANGLOIS, Laurent (Trans Tech Publications, 2012)
    The distribution of liquid at the semi solid state is one of the most important parameters for steel thixoforging. It has a great influence on the viscosity of the material, on the flows and finally on the final shape and ...
  • A contribution on manufacturing process development for composite material forming 
    Article dans une revue avec comité de lecture
    MAYER, Philippe; PERRIN, Henri; ccBECKER, Eric; ccLANGLOIS, Laurent; ccBIGOT, Regis (Trans Tech Publications, 2015)
    The author presents an approach to study an innovative manufacturing process developed to produce composite parts with new geometrical possibilities. The aim of this first study is to understand the motions of fibers during ...
  • Microstructure Evolution and Material Flow of Steel in Semi-solid Forming Process 
    Communication avec acte
    GU, Guochao; ccBECKER, Eric; ccPESCI, Raphaël; ccLANGLOIS, Laurent (Wiley-VCH Verlag GmbH, 2011)
    The present study aims to identify and characterize the development of microstructure and deformation characteristics of steel grades in semi-solid state which is affected by the change in morphologies of microstructure ...
  • Application of X-ray Microtomography to Quantify the Liquid Fraction of M2 Steel for Semi-solid Forming process 
    Article dans une revue avec comité de lecture
    GU, Guochao; ccBECKER, Eric; ccPESCI, Raphaël; ccLANGLOIS, Laurent (Trans Tech Publications, 2013)
    Thixoforging, one variant of semi-solid metal processing in which the metallic alloys are processed at low liquid fraction (0.1< Fl < 0.3), is used to produce complex parts with high mechanical properties. Steel thixoforging ...

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