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Asep Indra Komara
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Journal : JTRM (Jurnal Teknologi dan Rekayasa Manufaktur)

 1 
Perancangan Alat Pengangkut Sampah Pada Saluran Air Secara Kontinyu Asep Indra Komara; Luthfi Fattah Buchari
Jurnal Teknologi dan Rekayasa Manufaktur Vol 1 No 2 (2019): Vol 1 No 2 (2019): Volume: 1 | Nomor: 2 | Oktober 2019
Publisher : Pusat Pengembangan, Penelitian dan Pengabdian kepada Masyarat (P4M) Politeknik Manufaktur Bandung (Polman Bandung)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (926.948 KB) | DOI: 10.48182/jtrm.v1i2.10

Abstract

This article discusses the design process of a chocolate crusher machine based on VDI 2222. The design activities begin with identifying the needs and demands of the customer until finishing the solution for the customer in the form of a design work drawing in technical documentation. The proposed method is validated in a case study of making a chocolate chopper machine design. The machine generally functions as a separator between the cocoa beans and the shell of the seeds which have been chopped in such a way as to produce the required dimensions. At the planning stage, identifying the machine's need is to be able to chop the cocoa beans until the smallest grain has a maximum dimension of 4 mm. Three alternative functions are given and assessed as a result of the conceptualization stage. Evaluation is given to the draft design by considering the material, manufacturing and maintenance aspects. At the completion stage, technical documentation in the form of detailed work drawings is produced. By setting the rotating speed, a chocolate crusher can make beans with dimensions of 2-4 mm and production capacity is about 600 kg/hour.
Perancangan Ulang dan Analisa Mesin Benchtop Injection Molding dengan Metode VDI 2222 Adhiharto, Riky; Nusantoro, Adel Bangun; Komara, Asep Indra; Wigenaputra, Dadan Heryada
JTRM (Jurnal Teknologi dan Rekayasa Manufaktur) Vol 5 No 2 (2023): Volume: 5 | Nomor: 2 | Oktober 2023
Publisher : Pusat Penelitian, Pengembangan, dan Pemberdayaan Masyarakat (P4M) Politeknik Manufaktur Bandung (Polman Bandung)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.48182/jtrm.v5i2.148

Abstract

Injection molding is a process by which plastic is heated until it softens to fill a closed mold and form a product. One of them is the benchtop injection molder, where the machine that was previously made at POLMAN had problems, namely the main frame structure and injection mechanism which was less sturdy during the injection process and the heating system which overheated. Based on these problems, a redesign and analysis was carried out on the existing benchtop injection molder machine. The design methodology used is VDI 2222, which is a technical concept design methodology suitable for product development. Heat Transfer Simulation on existing and latest designs using COMSOL Software with geometry, material, temperature, fluid inlet and outlet, and mesh parameters. The results obtained were uneven heat distribution to the middle of the existing barrel at a temperature of 4600K, while the new barrel had an even heat distribution to the middle at 4730K at the 10th second. The latest machine weighs 17.78 kg, dimensions 775 x 266 x 426 mm, barrel capacity 19 grams with an aluminum frame and tight band heater installation.
Perancangan Cetakan dan Simulasi Proses Manufaktur untuk Teknologi HPDC: Studi Kasus Produk Plakat Komara, Asep Indra; Sidik, Barik; Hidayat, Ery; Wigenaputra, Dadan Heryada
JTRM (Jurnal Teknologi dan Rekayasa Manufaktur) Vol 6 No 1 (2024): Volume: 6 | Nomor: 1 | April 2024
Publisher : Pusat Penelitian, Pengembangan, dan Pemberdayaan Masyarakat (P4M) Politeknik Manufaktur Bandung (Polman Bandung)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.48182/jtrm.v6i1.156

Abstract

POLMAN Bandung plaque is a thick product with a relief shape on the surface of the product. The product was originally made using sand casting technology, but now it needs to be developed using high-pressure die casting (HPDC) molding technology. This process was hampered by the absence of technical documentation, so development started from the available sand-casting products. This development was carried out in two stages, first product design, and second tool design. Based on the results of the research carried out, an optimal HPDC design has been produced according to the desired specifications. Product designs are obtained through 3D scanning technology to obtain appropriate geometric data. Then the data generated for mold design and the HPDC process includes a specific casting pressure of 400 bar; casting locking force of 1311 kN; piston diameter of 40 mm; 31.6% fill rate; piston movement (V(x)): first phase 0.497 ms-1 to 307 mm, second phase 2.08 ms-1 to 390 mm. The analysis process in the shot-sleeve simulation has produced the right data for the production process so that machine control is more precise, effective, and efficient.
Co-Authors Ade Ramdan Adhiharto, Riky Adinda Sri Lestari Aditya, Dicko Adrian Afif, Muhammad Fadhlan Aida Mahmudah Annisa . Antonius Adi Soetopo Ariefijanto, Dedy Ayunisa Fitriani Jilan Bustami Ibrahim Dadan Heryada Dadan Heryada Wigenaputra Dedy Ariefijanto Dedy Ariefijanto Dinny Indrian Fadhlin Rizki Hidayat, Ery Johanes C. J. Hasibuan Luthfi Fattah Buchari Malik, Cagiva Abdul Manty Aldilani Ikaningsih Meri Rahmi Muhammad Abdurrahman Muhammad Hadi Yusuf Muhammad Rizal Ardiansyah Nadhifah Rysca Novianty Nia N. Permata Novianty, Nadhifah Rysca Nusantoro, Adel Bangun Panji Mufti Ali Riky Adhiharto Riskamti, Riskamti Royandi, Muhamad Aditya Sidik Permana Sidik, Barik Suardana, Moch Salman Fadillah Sutarno Sutarno Syuryana, Ekha Panji Widya Prapti Pratiwi Widyanto, Bambang Yessa F. Giantoyo