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Progress in extrusion technology and simulation of light by Luca Tomesani; Lorenzo Donati

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By Luca Tomesani; Lorenzo Donati

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Read or Download Progress in extrusion technology and simulation of light metal alloys : selected, peer reviewed papers from the 2011 edition of the International Conference on Extrusion and Benchmark (ICEB 2011), October 3-5, 2011, Bologna, Italy PDF

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Additional resources for Progress in extrusion technology and simulation of light metal alloys : selected, peer reviewed papers from the 2011 edition of the International Conference on Extrusion and Benchmark (ICEB 2011), October 3-5, 2011, Bologna, Italy

Sample text

The contact pressure that has been calculated by extrusion simulation has been applied as a boundary conditions for simulation of elastic deformation of the die cap. It was found that the small elastic deformation of the die causes significant changes of the choke angle in the bearing. It is also very important that the angle variation is very dependent on the bearing lengh. The angle of elastic inclination of the bearing surface is more than three times bigger in the case of the bearing length 12 mm comparing to the bearing length 6 mm.

319 –336. [8] T. Sheppard. Extrusion of aluminium alloys. The Netherlands: Kluwer Ac. Publishers, 1999. [9] Q. Li, C. R. Jolly. Finite element modelling simulation of transverse welding phenomenon in aluminium extrusion process. Materials and Design 24 (2003), pp. 493-496. [10] A. Segatori, B. Reggiani, L. Donati, L. Tomesani. Prediction of position and extent of charge welds in hollow profiles extrusion. Submitted to J. of Mat. Proc. Techn. 2011. [11] M. P. N. U. Akay. A 3-D penalty finite element model of forming processes.

The half of the die is considered. The contact pressure that has been calculated by extrusion simulation has been applied as a boundary conditions for simulation of elastic deformation of the die cap. It was found that the small elastic deformation of the die causes significant changes of the choke angle in the bearing. It is also very important that the angle variation is very dependent on the bearing lengh. The angle of elastic inclination of the bearing surface is more than three times bigger in the case of the bearing length 12 mm comparing to the bearing length 6 mm.

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