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All Journal Jurnal Rekayasa Mesin Automotive Experiences Eksergi: Jurnal Teknik Energi Jurnal Hilirisasi Technology kepada Masyarakat (SITECHMAS) Journal of Mechanical Engineering and Applied Technology Jurnal Polimesin
Alfauzi, Abdul Syukur
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Rancang Bangun Mesin Pengurai Gumpalan Tepung Tapioka Dengan Penggerak Motor Listrik 1 HP Alfauzi, Abdul Syukur; Nugroho, Wahyu Isti; Mudjijanto, Mudjijanto; Abidin, Zaenal; Norfitayana, Fredy
Journal of Mechanical Engineering and Applied Technology Vol. 1 No. 2 (2023): Volume 1 Issue 2 Year 2023 (July 2023)
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jmeat.v1i2.4876

Abstract

Almost all tapioca flour manufacturers at the home S.M.E. level, particularly in the Sidomukti district of Pati, Central Java, manufacture tapioca flour only to the final stage as a lump of tapioca flour. The results of this S.M.E. cannot be directly marketed to consumers because it must go through a process again so that the flour is smooth, so S.M.E. will sell tapioca flour lumps in the factory to be processed into ready flour to be marketed, resulting in lower profits for S.M.E.s producing tapioca flour and because there is no machine to decompose tapioca flour clumps for household production scale. Machine for breaking lumps of tapioca flour, this 1-horsepower electric motor drive is designed to alleviate challenges in S.M.E.s. This machine has a 50kg/h capacity and uses a 1:5 rotation ratio transmission mechanism via pulleys and a belt. When the electric motor is turned on, pulley one on the motor will rotate and move pulley two on the shaft, which then drives the mixer (stirrer), which will break down the flour that is put through the hopper and immediately filtered by mess, which has a hole size of 0.5 mm, and flour will come out through the output hopper that is under the body. This machine is semi-automatically operated by pushing ON to turn on and OFF to turn off. This machine will perform as intended
RANCANG BANGUN MESIN PEMILIN KERTAS KORAN LIMBAH MENJADI TALI KERTAS UNTUK BAHAN PEMBUATAN PRODUK KERAJINAN TANGAN Nur Hidayatullah, Alrizal; Setiyawan , Trio; Alfauzi, Abdul Syukur; Yulianto, Bayu; Nugroho , Eko; Angga, Firdaus
Journal of Mechanical Engineering and Applied Technology Vol. 3 No. 1 (2025): VOLUME 3 ISSUE 1 YEAR 2025 (MARCH 2025)
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jmeat.v3i1.6553

Abstract

Limbah kertas koran yang melimpah belum dimanfaatkan seoptimal mungkin, hal ini jika dibiarkan dapat mengganggu lingkungan, padahal nilai ekonomis hasilnya tinggi. Hasil pilinan kertas koran digunakan sebagai bahan basar untuk membuat kerajinan seperti tempat tissue, vas bunga, dan hasil kerajinan lainnya. Saat ini proses pemilinan kertas koran masih dikerjakan secara manual. Dari latar belakang tersebut kami mempunyai ide untuk membuat mesin pemilin kertas yang efektif dan efisien.Tujuan dibuatnya mesin ini adalah untuk mengurangi masalah produksi terutama dalam segi efisiensi waktu produksi dan efisiensi tenaga yang digunakan. Metode yang digunakan dalam pembuatan mesin ini yaitu melakukan studi pustaka lalu dilanjutkan survey ke industri kerajinan tali kertas koran untuk mendapatkan informasi tentang proses produksi dan hasil kerajinan. Selanjutnya melakukan perancangan mesin untuk mendapatkan desain terbaik. Tahap selanjutnya, pembuatan mesin dan proses pengujian untuk mengetahui keberhasilan perancangan. Setelah pembuatan diperoleh hasil mesin dengan dimensi 1250 x 700 x 550 (mm), dengan kapasitas produksi dua pilinan untuk tahap pertama dengan panjang setiap pilinan 20 (m) dalam waktu 30 (menit). Pilinan yang dihasilkan memiliki diameter rata-rata 2,1 (mm) dan kekuatan tarik 300 (N/mm2) dengan kerapatan pilinan merata. Untuk pemilinan tahap kedua menggabungkan dua pilinan menjadi satu dengan panjang 17 (m) dalam waktu 30 (menit). Pilinan yang dihasilkan memiliki diameter rata-rata 3,7 (mm) dan kekuatan tarik 625 (N/mm2).
Optimization of soldering quality using poka-yoke and camera-based inspection to prevent incomplete production cycle: a case study in automotive stator assembly Khoryanton, Ampala; Yanuar, Padang; Aditya, Dwiky Septian; Mujiarto, Iman; Tristijanto, Hery; Alfauzi, Abdul Syukur; Sunarto, Sunarto; Sriyanto, Nanang Budi
Jurnal Polimesin Vol 23, No 4 (2025): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i4.7203

Abstract

This study was conducted at a manufacturing company located in Indonesia that produces Alternating Current Generator Starters (ACGS). In the ACGS production process, there is a solder inspection stage that was previously performed manually by operators. The main issue encountered is incomplete production cycles, a condition where a production cycle is not fully completed, but the product continues to the next stage, increasing the risk of undetected defective or rejected products. Research aims to design a camera check system that integrates the Poka-Yoke method to enhance accuracy and prevent errors caused by human factors based on continuous improvement through the Plan, Do, Check, Action (PDCA) cycle. This study compares two camera inspection programs: program model 1, with individual position calibration per solder point, and program model 2, with a shared calibration setup, to evaluate inspection effectiveness. The quantitative comparative testing results show a detection accuracy of up to 99.92% and an inspection result classification accuracy reached 99.73%, indicating a significant improvement in the reliability of the visual inspection system and quality assurance for soldering results in industry.
Optimizing curing parameters to enhanced the compressive strength and toughness properties of Resin-Coated Sand (RCS) in foundry applications Khoryanton, Ampala; Harmanto, Sri; Mamba’udin, Ahmad; Alfauzi, Abdul Syukur; Tristijanto, Hery; Abidin, Zaenal; Yanuar, Padang; Putri, Farika Tono; Nugroho, Wahyu Isti; Kristiawan, Timotius Anggit; Sugiono, Friska Ayu Fitriani; Mujiarto, Iman; Riadini, Elfrida Rizky; Wirawan, Yuris Bahadur
Jurnal Polimesin Vol 23, No 2 (2025): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i2.6124

Abstract

Conventional heating methods remain prevalent among small and medium-sized enterprises (SMEs) for aluminum mold thermal regulation during resin-coated sand (RCS) core production. Inconsistent thermal regulation significantly alters the characteristics of resin-coated sand cores. This study aims to investigate the effect of curing parameters on the compressive strength and toughness of the resin-coated sand. The RCS specimens were prepared using an aluminum mold that underwent controlled thermal treatment in an electrical furnace. The thermal treatment is performed by processing specimens across a curing temperature range of 200-300°C and varying curing time from 3 to 15 minutes. HDPE polymer was proposed as the RCS binder. Compressive and impact tests were carried out to determine the characteristics of resin-coated sand. The results showed a non-linear relationship between curing parameters and mechanical properties. Although moderate curing time and higher temperatures initially improve compressive strength and toughness, exceeding optimal thresholds leads to the degradation of these mechanical characteristics. The highest mechanical properties (compressive strength = 38.4 MPa, toughness = 0.43 MPa) are achieved through a curing temperature of 250°C and a curing time of 9 minutes. This study provides valuable insights into determining the optimal parameters for processing resin-coated sand cores or molds with superior compressive and toughness properties.
Co-Authors Achmad Noerkhaerin Putra Aditya, Dwiky Septian Agus Slamet Ahmad Mamba'udin Andreyanto W, Mirda Angga, Firdaus Anggit, Timotius Apriandi MS, Nanang Ardjo, Anwar Sukito Ayu S, Friska Bagas, Alfian Bambang Sumiyarso Bambang Tjahjono Bono Bono Eko Saputra Elfrida Rizky Riadini F Gatot Sumarno, F Gatot Harlian Kadir Hery Tristijanto Janitra, Atikah Ayu Khoryanton, Ampala Lee, Shun-Ching Marliyati Marliyati, Marliyati Mudjijanto, Mudjijanto Munawwaroh, Dita Anies Nanang Apriandi Nanang Budi Sriyanto Negara, Komang Metty Trisna Norfitayana, Fredy Nugroho , Eko Nur Hidayatullah, Alrizal Padang Yanuar Pratama, Galang Dimas Purnomo, Adhy Putri, Farika Tono Rani Raharjanti Sahid Sahid Satito, Aryo Setiyawan , Trio Setyo, Aan Sri Harmanto Sriharmanto, Sriharmanto Sugiono, Friska Ayu Fitriani Sunarto Sunarto Supandi Sutanto, Bayu Timotius Anggit Kristiawan Tristidjanto, Hery Wahyu Isti Nugroho Yulianto, Bayu Yuris Bahadur Wirawan, Yuris Bahadur Yusuf Dewantoro Herlambang Zaenal Abidin