Simulating the Heat Distortiion of a Cast Iron Brake Disc during Dry Machining
TypeCommunications avec actes
The application of MQL or dry machining in mass production becomes more and more accepted. Dry (MQL) machining is a very efficient solution to reduce the usage of cutting fluids and represents an effective measure for an environmental friendly production. However, these techniques do not benefit any more from the stabilization in temperature obtained with cutting fluids. More important and more heterogeneous increases of the temperature are observed. This leads to distortions of the work piece during machining which are necessary to be taken into account to maintain the geometrical quality of the manufactured surfaces. In this paper, we present a strategy to handle these thermal induced distortions in an industrial context. This strategy couples finite element thermo-elastic simulations and temperature measurements of the work piece. In a first section, we describe a method to identify machined characteristics sensible to part temperature at loading. This method takes into account standard deviation of the process. A solution to adapt tool trajectories with a temperature measurement is proposed. Second part deals with distortions of the part during manufacturing. A method is proposed to simulate distortions along machining. These FEM simulations allow to identify impact of a machining on next operations. An application of the proposed approach for the machining of a cast iron brake disc is presented. Simulations are compared to measurements made in a dry manufacturing line.
Showing items related by title, author, creator and subject.
BOYER, Henri-François; KOPPKA, Frank; RANC, Nicolas; LORONG, Philippe (2012)Machining with minimum quantity lubrication (MQL) has been the focus of many scientific investigations since the last 20 years. Nevertheless an acceptable method of predicting the thermal influences on the workpiece quality ...
GAUDILLIERE, Camille; RANC, Nicolas; LARUE, Arnaud; MAILLARD, A; LORONG, Philippe (SEM, 2013)A new blanking process that involves punch speed up to 10 ms −1 has obvious advantages in increased productivity. However, the inherent dynamics of such a process makes it difficult to develop a practical high speed punch ...
Procédé de perçage par laser : Comparaison entre des données expérimentales et une simulation 2D basée sur la méthode CNEM GIRARDOT, Jérémie; RANC, Nicolas; SCHNEIDER, Matthieu; LORONG, Philippe; ILLOUL, Lounès; BERTHE, Laurent; FAVIER, Véronique (Congrès français de mécanique (21 ; 2013 ; Bordeaux (Gironde), 2013)This work presents a numerical alternative for the laser drilling simulation problem. Using finite element method is difficult to simulate the hole propagation over time, especially because of moving boundaries due to a ...
GIRARDOT, Jérémie; ILLOUL, Lounès; LORONG, Philippe; RANC, Nicolas; SCHNEIDER, Matthieu; BERTHE, Laurent; FAVIER, Véronique (2012)These works present a numerical alternative to the simulation of the laser drilling process. The use of the finite element method to modeling the hole creation during a laser pulse shows difficulties in front of a moving ...
PFEIFFER, Renaud; LORONG, Philippe; RANC, Nicolas (2015)During the primary transformation in wood industry, logs are faced with conical rough milling cutters commonly named slabber or canter heads. Chips produced consist of raw materials for pulp paper and particleboard industries. ...