DBPapers
DOI: 10.5593/sgem2017/21/S07.036

DIMENSIONING GATING SYSTEM FOR THE CASTING PRODUCED BY INVESTMENT CASTING AND ITS VERIFICATION VIA COMPUTER SIMULATION

P. Futas, A. Pribulova, J. Petrik, A. Junakova
Wednesday 13 September 2017 by Libadmin2017

References: 17th International Multidisciplinary Scientific GeoConference SGEM 2017, www.sgem.org, SGEM2017 Conference Proceedings, ISBN 978-619-7408-01-0 / ISSN 1314-2704, 29 June - 5 July, 2017, Vol. 17, Issue 21, 279-286 pp, DOI: 10.5593/sgem2017/21/S07.036

ABSTRACT

At present, increasingly high demands on the quality of the manufactured castings, which are used in the automotive industry. The foundry respect there are a number of advanced technologies, which are used for the casting. These include the technology of production castings by investment casting. It is used particularly where in view of the complex shape casting technology is the production of other more expensive, respectively, it is not at all possible. Such casting is the rotor of the turbocharger to be used in various pressurized combustion engines. In this technology of investment casting plays a crucial role gating system. It must provide positive directionally solidified castings, which are formed into so-called tree. Therefore, its design and calculation is very important. A helping hand to us in this respect offer CAD systems and simulation programs. CAD systems allows us to create a 3D model designed components. Using simulation programs we evaluate the processes that take place during filling and solidification in casting castings. Subsequent evaluation of such simulations can make changes to the gating system or the casting and thus reduce the cost of manufacturing already in pre-production stage. The paper deals with the dimensioning of gating system for this type of casting and computer simulation of filling and solidification.

Keywords: investment casting, gating system, turbocharger rotor, computer simulation of filling

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