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All Journal Jurnal AME (Aplikasi Mekanika dan Energi): Jurnal Ilmiah Teknik Mesin Community Empowerment Majalah Teknik Mesin
Shieddique, Apang Djafar
Unknown Affiliation
Arts Humanities Automotive Engineering Education Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences

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Metal forming technology dissemination for economic empowerment of small and medium enterprises Abdulah, Amri; Sukarman, Sukarman; Jatira, Jatira; Rajab, Dede Ardi; Anwar, Choirul; Heryana, Ghany; Shieddique, Apang Djafar; Irawan, Adhi Chandra; Setiawan, Yuda; Bachtiar, Mochamad Faisal; Riswandi, Muhammad Andi
Community Empowerment Vol 6 No 6 (2021)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (744.512 KB) | DOI: 10.31603/ce.4850

Abstract

This metal forming technology dissemination activity involved three partners from micro, small and medium enterprises (MSMEs) engaged in the metal forming industry in the village of Karangsentosa, Karangbahagia District, Bekasi Regency. The main problem faced by partners is the difficulty in designing dies for the combination of piercing and blanking processes. This difficulty resulted in the piercing and blanking processes being carried out separately, resulting in less efficient production performance and higher production costs, thus requiring a reverse engineering process for some of its products. The method used in this dissemination process was an experimental method by doing reverse engineering on one of the products produced, namely the ducting corner. The purpose of this metal forming technology dissemination is to assist partners in increasing the efficiency of the production process by combining piercing and blanking processes into one process. In this metal forming technology dissemination activity, efficiency has been carried out from nine stages of the production process to five production processes. The combination of blanking and piercing processes using 1.2 mm SPCC-SD material for the production of ducting corners requires a minimum power press machine capacity of 18.3 tons. Further dissemination will be carried out by combining the piercing, blanking and bending processes by applying the progressives dies design.
PENGARUH UKURAN BUTIR KATALISATOR CANGKANG TELUR PADA PROSES PACK CARBURIZING TERHADAP KEKERASAN DAN STRUKTUR MIKRO MATERIAL DIN 17210 C15 Rajab, Dede Ardi; Abdulah, Amri; Shieddique, Apang Djafar; Husna, Agus; Waluyo, Roy
AME (Aplikasi Mekanika dan Energi): Jurnal Ilmiah Teknik Mesin Vol. 7 No. 1 (2021)
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/ame.v7i1.4156

Abstract

Penambahan karbon pada permukaan baja karbon rendah sering disebut pack carburizing. Selain bahan kimia, katalisator untuk proses pack carburizing yang mudah didapatkan  yaitu cangkang telur.  Pada prosesnya, cangkang telur dihaluskan menjadi serbuk dan dicampur dengan arang tempurung kelapa. Dalam penelitian ini menggunakan variasi tiga tingkat  ukuran butir cangkang telur,  dengan ukuran yaitu ±1 mm2, ±3 mm2 dan ±5 mm2 yang masing – masing dicampur dengan karbon aktif dari arang tempurung kelapa dengan komposisi 40% cangkang telur, 60% arang tempurung kelapa. Tujuan dari penelitian yaitu untuk mencari nilai kekerasan yang terbaik.  Specimen yang digunakan sebagai  material dasar adalah baja DIN 17210 C15 yang termasuk dalam kelompok baja karbon rendah. Suhu pada proses pemanasan di furnace yaitu 950 °C dan holding time selama 2 jam,  lalu pengambilan foto mikroskopik pada material kemudian uji kekerasan material sebelum dan sesudah pack carburizing. Hasil penelitian ditemukan nilai effective case depth yang paling tinggi adalah specimen A yang menggunakan ukuran butir katalisator ±1 mm2 sebesar 1.2 mm dan terendah pada specimen C ukuran butir katalisator ±5 mm2 sebesar 0.96 mm,  dari hasil tersebut bahwa cangkang telur dengan ukuran butir yang lebih kecil akan mudah menjadi gas lebih cepat dibandingkan dengan yang lebih besar, kecepatan menjadi gas tersebut berpengaruh terhadap kekerasan permukaan specimen yang dihasilkan.
OPTIMIZING PROCESS PARAMETERS FOR FILAMENT 3D PRINTING USING THERMOPLASTIC POLYURETHANE (TPU) WITH RESPONSE SURFACE METHODOLOGY (RSM) Salbiah, Umi Khulsum; Shieddique, Apang Djafar; Rohman, Rohman
Media Mesin: Majalah Teknik Mesin Vol. 26 No. 2 (2025)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

3D Printing utilizes the fabrication process of Fused Deposition Modeling (FDM), which is an Additive Manufacturing (AM) technology that builds objects layer by layer (Pristiansyah et al., 2019). The use of 3D Printing technology has rapidly increased in recent years, significantly contributing to the quality and cost efficiency of prototype production. TPU (Thermoplastic Polyurethane) filament is often used because it produces heavier, harder, and more durable products. Optimizing the 3D printing process is crucial to achieving optimal results, one of which is through the Response Surface Methodology (RSM) method. In this study, RSM was used with 2 factors to find the best response in tensile strength and material hardness of TPU. The experimental results showed that the optimal parameters for tensile strength are a temperature of around 190°C and a print speed of 45mm/m, resulting in a tensile strength of 2.34 kgf/mm². Meanwhile, for maximum hardness, the optimal parameters are a temperature of 214.15°C and a print speed of 45mm/m, with a hardness value of 72.67 HRR. Thus, the RSM method can be an effective approach in improving the 3D Printing results on TPU material.
Co-Authors Amri Abdulah Bachtiar, Mochamad Faisal Choirul Anwar Ghany Heryana Husna, Agus Irawan, Adhi Chandra Jatira Rajab, Dede Ardi Riswandi, Muhammad Andi Rohman Rohman Roy Waluyo Salbiah, Umi Khulsum Setiawan, Yuda Sukarman Sukarman