Experimental casting of forging ingots from model material

¹ University of Zilina, Faculty of Mechanical Engineering, Department of Technological Engineering, Univerzitná 8215/1, 010 26, Zilina, Slovak Republic
² University of Zilina, Faculty of Security Engineering, Department of Technical Sciences and Informatics, Univerzitná 8215/1, 010 26, Zilina, Slovak Republic
³ University of Zilina, Faculty of Security Engineering, Department of Technical Sciences and Informatics, Univerzitná 8215/1, 010 26, Zilina, Slovak Republic

^* Corresponding author: peter.kopas@fstroj.uniza.sk

Abstract

The paper describes the process of casting ingots from the model material into a special mold made for these tests. The material was chosen stearin, which proved to be suitable for this type of laboratory test. During the solidification process of the ingot model under laboratory conditions, it was observed how gradually the layer formed on the contour of the casting. Gradual cooling of the ingot resulted in a decrease in the volume of the liquid phase in his body. The fog is readily observable by the naked eye and this is manifested by the formation of a gap between the ingot mold wall and the ingot body. A silicone oil has been used as a separating melt separating layer and the wall of the ingot that has reliably fulfilled this task. Casting was done in two ways, with a standing and lagging mold. The process of filling the cavity itself was to create conditions for the linear flow of the melt. Observation of the ingot after its solidification confirmed the fact that the filling of the cavity proceeded under such conditions in terms of the melt flow rate.