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. Materials. SWITZERLAND: MDPI AG, roč. 14, č. 13, s. nestránkováno, 19 s. ISSN 1996-1944. 2021.
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Základní údaje
Originální název Influence of Gating System Parameters of Die-Cast Molds on Properties of Al-Si Castings
Autoři GASPAR, Stefan (garant), Tomas CORANIC, Ján MAJERNÍK (703 Slovensko, domácí), Jozef HUSAR, Lucia KNAPCIKOVA, Dominik GOJDAN a Jan PASKO.
Vydání Materials, SWITZERLAND, MDPI AG, 2021, 1996-1944.
Další údaje
Originální jazyk angličtina
Typ výsledku Článek v odborném periodiku
Obor 20301 Mechanical engineering
Stát vydavatele Švýcarsko
Utajení není předmětem státního či obchodního tajemství
WWW URL
Kód RIV RIV/75081431:_____/21:00002136
Organizační jednotka Vysoká škola technická a ekonomická v Českých Budějovicích
UT WoS 000670971300001
Klíčová slova anglicky Casting mold; Gating system; Mechanical properties of cast; Structural adjustments
Štítky KSTR3, RIV21, WOS
Změnil Změnila: Mgr. Nikola Petříková, učo 28324. Změněno: 31. 8. 2021 09:25.
Anotace
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.
VytisknoutZobrazeno: 29. 3. 2024 15:27