Development of a Tool Design Method in Cross Wedge Rolling: Description and Applications
TypeChapitres d'ouvrages scientifiques
Till now, the definition of cross wedge rolling dies requires know-how and important expertise from the designers. A decision-making methodology is being developed to provide sequential and logical steps to draw easier and faster the tool geometry. This methodology is based on designing rules found in literature that link the geometrical parameters of the desired rolled part and the geometrical parameters of the tool. Nevertheless, in the literature, the rules are not always consistent because the admissible domain for a parameter can differ from one author to another. In order to take into account this variability, a stability index is associated to each rule and to the designed tool. The methodology allows updating of the existing rules and the implementation of new rules. The set of parameters defining the geometry of the tool can be exported in the CAD/CAM software and FEM software. A case-study is presented to illustrate and validate the methodology.
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GUTIERREZ, Catalina; LANGLOIS, Laurent; BAUDOUIN, Cyrille; BIGOT, Régis; FREMEAUX, Eric (AIP Publishing, 2017)Cross wedge rolling (CWR) is a metal forming process used in the automotive industry. One of its applications is in the manufacturing process of connecting rods. CWR transforms a cylindrical billet into a complex axisymmetrical ...
MANGIN, Philippe; LANGLOIS, Laurent; BIGOT, Régis (American Institute of Physics, 2010)In the cross wedge rolling process (CWR), plastic deformation is geared by a driving torque transmitted by friction on die surface. Friction plays a role which has to be further identified in this metal forming process. ...
MAYER, Philippe; PERRIN, Henri; BECKER, Eric; LANGLOIS, Laurent; BIGOT, Régis (Trans Tech Publications, Switzerland, 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 ...
MANGIN, Philippe; LANGLOIS, Laurent; BIGOT, Régis (Wiley, 2011)The cross wedge rolling process is commonly used for the manufacturing of shaft or for preforms, being used for preliminary operation of forming cycle. The presence of angular deformation produced during the rolling process ...
Cobalt-based superalloy layers deposited on X38CrMoV5 steel base metal by explosion cladding process LANGLOIS, Laurent; BIGOT, Régis; ETTAQI, Saïd (Elsevier, 2008)A grade 25 cobalt-based superalloy in the form of a sheet 5 mm in thickness and a steel substrate of type X38CrMoV5 are joined by explosion cladding. The macrostructure and microstructure of the interface and of the co-based ...