Karya
Judul/Title The Start-Up Phase of Aluminum Billet Production Using Direct Chill Casting
Penulis/Author KARDO RAJAGUKGUK (1); Dr. Suyitno, S.T., M.Sc. (2) ; Prof. Dr. Ir. Harwin Saptoadi, M.SE., IPM., ASEAN Eng. (3); Dr. Indraswari Kusumaningtyas, S.T., M.Sc (4); Dr. Ir. Urip Agus Salim, ST., M.Eng.Sc. (5); Ir. Muslim Mahardika, S.T., M.Eng., Ph.D., IPM., ASEAN Eng. (6); Dr. Ir. Budi Arifvianto, S.T., M.Biotech. (7)
Tanggal/Date 9 2024
Kata Kunci/Keyword
Abstrak/Abstract Direct chill (DC) casting has been considered as one of the promising casting methods that can be used to produce aluminum alloys billet. The process is conducted by pouring aluminum metal into a water-cooled mold. The billet shell begins to form when molten aluminum contact directly with the mold (this is also known as primary cooling). Afterward, the starting block is pulled downwards at a specified casting speed to achieve desired aluminum billet. The start-up phase during the DC casting process is considered a crucial step since it may determine the formation of defects in the casting products. This research aims to investigate the casting defects on the aluminum alloy that were formed during the start-up process of DC casting. The results show that the billet failed to form following the downward movement of starting block. Meanwhile, the billet tended to stick to the mold wall due to several factors, such as too low a pouring temperature, a less-round mold shape, the poor quality of the hot top and graphite ring, and the water that entered the mold during the casting process. It also noted several markers of the casting defects that occurred during the DC casting process such as liquation or bleeding, cold folding, billet stuck in the mold, butt structure, and rough billet surface.
Rumpun Ilmu Teknik Material (Ilmu Bahan)
Bahasa Asli/Original Language English
Level Internasional
Status
Dokumen Karya
No Judul Tipe Dokumen Aksi
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