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All Journal Journal of Mechanical Science and Engineering Jurnal Rekayasa Mesin AUSTENIT Simposium II UNIID 2017 Calamity: A Journal of Disaster Technology and Engineering Jurnal Pelita Sriwijaya
Hendri Chandra
Pengajar Pasca Sarjana Jurusan Teknik Mesin Fakultas Teknik Universitas Sriwijaya
Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Other

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Journal : Jurnal Rekayasa Mesin

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ANALISIS CACAT PENYUSUTAN DAN NILAI KEKERASAN PRODUK COR ALUMINIUM SKRAP DENGAN VARIASI UKURAN MILD STEEL CYLINDER MOLD Nurhabibah Paramitha Eka Utami; Pratiwi, Diah Kusuma; Chandra, Hendri; Ellyanie, Ellyanie; Gustini, Gustini; Astuti, Astuti
Jurnal Rekayasa Mesin Vol. 25 No. 1 (2025): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v25i1.1414

Abstract

The research was conducted to investigate the effect of mold diameter variation on the hardness and shrinkage of cast products made from aluminum scrap. Three mold diameter variations were used in the casting process: 50 mm, 70 mm, and 100 mm. The testing methods included shrinkage measurement, Brinell hardness testing, and dye penetrant inspection. The test results showed that the 50 mm sample had the highest hardness value of 52.09 BHN and the lowest shrinkage defect of 25.25%, while the 100 mm diameter sample exhibited the lowest hardness value of 48.72 BHN and the highest shrinkage defect of 28%. This phenomenon occurred due to differences in cooling rates during the solidification process, where larger mold diameters experienced slower cooling, resulting in coarser microstructure grains and a higher occurrence of shrinkage defects.
Co-Authors Abdi, Jusran Amir Arifin Astuti - Azhari, Ikbal Dewi Puspitasari Diah Kusuma Pratiwi Eka Utami, Nurhabibah Paramitha Ellyanie Ellyanie Gunawan Gunawan Gustini, Gustini Hasan Basri Kaprawi Kaprawi Marwani Marwani, Marwani Nurhabibah Paramitha Eka Utami Ozkar F. Homzah, Ozkar F. Prakoso, Akbar Teguh Putra, Dicky Pratama Rafli Fazal, Muhammad Ramadhoni, Tri Satya Riman Sipahutar Romli Romli, Romli Sampurno, Rachmat Dwi Saputra, M. A. Ade Tumpal Ojahan Rajagukguk Utama Putra, Risky Utami, Nurhabibah Paramitha Eka Yogi Saputra Zulkarnain, Rizki