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Evaluation of Horizontal and Vertical Constrained Rod Casting Mold on Hot Tearing Susceptibility of Al-Cu Alloys

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Abstract

This research aims to evaluate horizontal and vertical constrained rod casting (CRC) molds on hot tearing susceptibility (HTS) of Al-xCu casting alloys with 2.2, 3.6, 7.5, and 12.5 percent Cu. The hot tears on the casting product were observed using a macroscopic approach. In addition, the hot tearing susceptibility of each casting product prepared using these molds was evaluated using the HTS formula. The results show that the vertical CRC mold has a higher HTS value than the horizontal CRC mold. The rod length is a significant factor in causing hot tearing. Longer rods are more susceptible to hot tearing. The horizontal CRC mold provides a clearer effect of rod length and Cu composition on the average HTS value. In the vertical CRC mold, the effect of Cu composition on the average HTS value is less clear. Therefore, it is highly recommended to use horizontal CRC mold for HTS testing of aluminum casting alloys.

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Acknowledgment

This work is supported by PT. Ontiyus Karya Mulia, Indonesia. The authors are grateful to Bambang Tiroso for the support in sending the vertical CRC mold.

Funding

This work was financially by The Ministry of Education and Culture, Republic of Indonesia with a research grant No. 1661/UN1/DITLIT/Dit-Lit/PT.01.03/2022, Universitas Gadjah Mada and Institut Teknologi Sumatera, Indonesia

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Authors and Affiliations

  1. Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Jl. Grafika 2, Yogyakarta, 55281, Indonesia

    Kardo Rajagukguk, Harwin Saptoadi, Indraswari Kusumaningtyas, Budi Arifvianto, Urip Agus Salim & Muslim Mahardika

  2. Center for Innovation of Medical Equipment and Devices (CIMEDs), Universitas Gadjah Mada, Jl. Teknika Utara, 55281, Yogyakarta, Indonesia

    Kardo Rajagukguk

  3. Department of Mechanical Engineering, Institut Teknologi Sumatera (ITERA), Jl. Terusan Ryacudu, South Lampung, Lampung, 35365, Indonesia

    Kardo Rajagukguk & Eko Pujiyulianto

  4. Department of Mechanical Engineering, Faculty of Engineering, Universitas Tidar, Jl. Kapten Suparman 39, North Magelang, 56116, Indonesia

    Suyitno Suyitno

  5. Center for Innovation of Medical Equipment and Devices (CIMEDs), Universitas Gadjah Mada, Jl. Teknika Utara, Yogyakarta, 55281, Indonesia

    Suyitno Suyitno, Budi Arifvianto, Urip Agus Salim, Muslim Mahardika & Eko Pujiyulianto

  6. Department of Materials Science and Engineering, Delft University of Technology, Mekelweg 2, 2628CD, Delft, The Netherlands

    Laurens Katgerman

  7. Katgerman Aluminium Technology, van Beuningenlaan 10, 2334CC, Leiden, The Netherlands

    Laurens Katgerman

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  1. Kardo Rajagukguk
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Correspondence to Suyitno Suyitno.

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Rajagukguk, K., Suyitno, S., Saptoadi, H. et al. Evaluation of Horizontal and Vertical Constrained Rod Casting Mold on Hot Tearing Susceptibility of Al-Cu Alloys. Inter Metalcast (2024). https://doi.org/10.1007/s40962-023-01250-z

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