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@article{59601, author = {Gaspar, Stefan and Coranic, Tomas and Majerník, Ján and Husar, Jozef and Knapcikova, Lucia and Gojdan, Dominik and Pasko, Jan}, article_location = {SWITZERLAND}, article_number = {13}, keywords = {Casting mold; Gating system; Mechanical properties of cast; Structural adjustments}, language = {eng}, issn = {1996-1944}, journal = {Materials}, title = {Influence of Gating System Parameters of Die-Cast Molds on Properties of Al-Si Castings}, url = {https://www.mdpi.com/1996-1944/14/13/3755/htm}, volume = {14}, year = {2021} }
TY - JOUR ID - 59601 AU - Gaspar, Stefan - Coranic, Tomas - Majerník, Ján - Husar, Jozef - Knapcikova, Lucia - Gojdan, Dominik - Pasko, Jan PY - 2021 TI - Influence of Gating System Parameters of Die-Cast Molds on Properties of Al-Si Castings JF - Materials VL - 14 IS - 13 SP - nestránkováno EP - nestránkováno PB - MDPI AG SN - 19961944 KW - Casting mold KW - Gating system KW - Mechanical properties of cast KW - Structural adjustments UR - https://www.mdpi.com/1996-1944/14/13/3755/htm N2 - The resulting quality of castings indicates the correlation of the design of the mold inlet system and the setting of technological parameters of casting. In this study, the influence of design solutions of the inlet system in a pressure mold on the properties of Al-Si castings was analyzed by computer modelling and subsequently verified experimentally. In the process of computer simulation, the design solutions of the inlet system, the mode of filling the mold depending on the formation of the casting and the homogeneity of the casting represented by the formation of shrinkages were assessed. In the experimental part, homogeneity was monitored by X-ray analysis by evaluating the integrity of the casting and the presence of pores. Mechanical properties such as permanent deformation and surface hardness of castings were determined experimentally, depending on the height of the inlet notch. The height of the inlet notch has been shown to be a key factor, significantly influencing the properties of the die-cast parts and influencing the speed and filling mode of the mold cavity. At the same time, a significant correlation between porosity and mechanical properties of castings is demonstrated. With the increasing share of porosity, the values of permanent deformation of castings increased. It is shown that the surface hardness of castings does not depend on the integrity of the castings but on the degree of subcooling of the melt in contact with the mold and the formation of a fine-grained structure in the peripheral zones of the casting. ER -
GASPAR, Stefan, Tomas CORANIC, Ján MAJERNÍK, Jozef HUSAR, Lucia KNAPCIKOVA, Dominik GOJDAN a Jan PASKO. Influence of Gating System Parameters of Die-Cast Molds on Properties of Al-Si Castings. \textit{Materials}. SWITZERLAND: MDPI AG, roč.~14, č.~13, s.~nestránkováno, 19 s. ISSN~1996-1944. 2021.
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