Possibilities of Bifilm Amount Reduction in Al Castings by Gating System Design Optimization

• Autorzy: Brůna Marek , Galčík M. , Sládek A. , Martinec D.

Identyfikatory

DOI

10.24425/amm.2021.135892

• Języki publikacji: EN

Abstrakty

EN

Submitted work deals with the possibilities of reducing reoxidation by improved gating system design. The result of the reoxidation is the of furled oxide layers - bifilms. During experimental works, non-pressurized and naturally pressurized gating systems designs were introduced and evaluated. Mechanical properties, fracture area, hot tearing index, bifilm index and EDX analysis were used during evaluation. Paper aim is also to clarify the reoxidation phenomenon by visualization with the aid of ProCAST numerical simulation software. Achieved results clearly confirmed the positive effect of the naturally pressurized gating system, main emphasis needs to focus on finding the proper way to reduce the melt velocity. By using vortex element extension at the end of the runner was achieved positive results in term of reoxidation suppression.

Słowa kluczowe

EN

reoxidation; bifilm; gating system; aluminium alloys; mechanical properties

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2021
• Tom: Vol. 66, iss. 2
• Strony: 549--559
• Opis fizyczny: Bibliogr. 10 poz., fot., rys., tab., wzory

Twórcy

autor

Brůna Marek

• University of Žilina, Faculty of Mechanical Engineering, Department of Technological Engineering, Univerzitná 8215/1, 010 26 Žilina, Slovakia

• https://orcid.org/0000-0003-3742-7422

autor

Galčík M.

• University of Žilina, Faculty of Mechanical Engineering, Department of Technological Engineering, Univerzitná 8215/1, 010 26 Žilina, Slovakia

autor

Sládek A.

• University of Žilina, Faculty of Mechanical Engineering, Department of Technological Engineering, Univerzitná 8215/1, 010 26 Žilina, Slovakia

autor

Martinec D.

• University of Žilina, Faculty of Mechanical Engineering, Department of Technological Engineering, Univerzitná 8215/1, 010 26 Žilina, Slovakia

Bibliografia

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Uwagi

1. This article was made under support of project V-1/0706/18 Concept and realization of modern center of diagnostics and quality control for castings and weldments.

2. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).