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All Journal Jurnal Pendidikan Teknik Mesin Jurnal Mechanical Journal of Mechanical Engineering Science and Technology Jurnal Teknik Otomotif Kajian Keilmuan dan Pengajaran JURNAL DINAMIKA VOKASIONAL TEKNIK MESIN JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika) Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Pengabdian, Pendidikan dan Teknologi Jurnal Graha Pengabdian Jurnal Abdimas Indonesia : Jurnal Abdimas Indonesia AMMA : Jurnal Pengabdian Masyarakat IRA Jurnal Pengabdian Kepada Masyarakat Prosiding Seminar Nasional Pengabdian kepada Masyarakat (SINAPMAS)
Didin Zakariya Lubis
Universitas Negeri Malang
Religion Agriculture, Biological Sciences & Forestry Humanities Chemistry Computer Science & IT Economics, Econometrics & Finance Education Energy Engineering Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Nursing Public Health Social Sciences Other

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Journal : JURNAL DINAMIKA VOKASIONAL TEKNIK MESIN

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IN-DEPTH INVESTIGATION OF VARIATIONS IN RISER QUANTITY USING EXPENDABLE MOLDS Riyanto, Obaja Eden Sentosa; J, Khansa Farrel; I.Y.H, Kyagus Ahmad; E., Wahyu Dwi; Akbar, Rafi; Lubis, Didin Zakariya
Jurnal Dinamika Vokasional Teknik Mesin Vol. 9 No. 2 (2024)
Publisher : Department of Mechanical Engineering Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/dinamika.v9i2.77336

Abstract

This study explores and investigates the impact of the riser quantity on shrinkage and surface quality of two cast products in the sandcasting process.  The research was conducted in several stages: preparing the mold and equipment, performing the casting process, investigating shrinkage, and inspecting the products using a macro camera. Experimental results demonstrated that the number of risers significantly influences the final product quality. Specifically, the average shrinkage for molds with one riser was found to be 3.18% and 5.01% for the first and second products, respectively. In comparison to molds with two risers presented decreased shrinkage, with averages of 0.9% and 2.06% for the first and second product, respectively. Additionally, defects investigated and observed in the first product with a single riser mold underscore the importance of riser quantity alongside casting parameters. The findings of this research highlight that increasing the number of risers can enhance casting quality by minimizing shrinkage. improving surface finish. This research presented essential insights for optimizing riser design and quantity for expendable mold in sandcasting technology to achieve superior cast products quality.
QUANTITATIVE MACRO DEFECT ANALYSIS IN SAND CASTING: 3D SIMULATION AND POROSITY ASSESSMENT IN ASHTRAY PATTERNS Maulana, Jibril; Adjie P.W, Muhammad; M.H, Rachmanda; Aliyudin F, Rifan; Maulana, Yusuf; Lubis, Didin Zakariya
Jurnal Dinamika Vokasional Teknik Mesin Vol. 9 No. 2 (2024)
Publisher : Department of Mechanical Engineering Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/dinamika.v9i2.77486

Abstract

Simulation analysis and quantitative approaches have become very important in the foundry industry to improve product quality and minimize defects. This study aims to analyze macro defects, particularly porosity, in ashtray patterns produced through sand casting. A quantitative approach was used to identify and evaluate macro defects in the castings by utilizing 3D simulation techniques. This process involves taking macro images of the molded samples and then processing them to determine the porosity level. The porosity evaluation was carried out by comparing the simulation results with experimental data, thus enabling a more in-depth understanding of the factors affecting casting quality. The results of this study show the porosity formed by 3-dimensional simulation and the porosity percentage derived from statistical interpretation of macro photographs of sand casting materials. The findings are expected to make a meaningful contribution to the foundry industry, particularly in the effort to improve product quality through process optimization. This study also highlights the importance of quantitative and simulation approaches in analyzing and predicting casting defects, which can ultimately reduce production costs and improve product yield.
Co-Authors Adjie P.W, Muhammad Agung Budi Darmawan Agus Suyetno Akbar, Rafi Aliyudin F, Rifan Ambar Isna Azizah Andoko Andoko, Andoko Andri Wisnu Wardana Andrianto, Sis Nanda Kus Ardiansyah, Mochammad Fachrizal Arianto, Ipan Damayani, Rosyi Dani Irawan Darmawan, Muhammad Wahid Dewi Izzatus Tsamroh E., Wahyu Dwi Erwin Komara Mindarta I.Y.H, Kyagus Ahmad Imam Sudjono J, Khansa Farrel Jibril Maulana Khulidi, Ahmad Munawwirul Furqonul Lea Rachmat Indrasepta M, Ken Aulia Azizi M. Ihwanudin M.H, Rachmanda Mawangi, Puteri Ardista Nursisda Mohammad Ainul Yaqin, Mohammad Ainul Muhammad Ilman Nur Sasongko Muhammad Sultan, Muhammad Nur Ali Ridho Pasha, Muhammad Faizullah Prasetya, Riduwan Putri Nadia Furoidah Rahmatullah Rahmatullah Redyarsa Dharma Bintara Riana Nurmalasari Riyanto, Obaja Eden Sentosa Rizky Ramadhan Rr. Poppy Puspitasari Setiawan, Rama Adi Shiddiqy, Taqiyyudin Ahmad As Suharmanto Taupik Yuhana Vidya Purnamasari Wicaksono, Moch. Wahyu Wiwik Mardiana Yoto Yoto Yudha Rian Pratama Yusuf Maulana, Yusuf