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

Kardo Rajagukguk, Suyitno Suyitno*, Harwin Saptoadi, Indraswari Kusumaningtyas, Budi Arifvianto, Urip Agus Salim, Muslim Mahardika, Eko Pujiyulianto, Laurens Katgerman

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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.

Original languageEnglish
Number of pages13
JournalInternational Journal of Metalcasting
DOIs
Publication statusPublished - 2024

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • Al-Cu alloys
  • casting
  • constrained rod casting (CRC)
  • horizontal CRC mold
  • hot tearing susceptibility
  • vertical CRC mold

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