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DESIGN AND FABRICATION OF CUTTING-EDGE PLASTIC BOTTLE CAP PRESS TOOLS FOR A GREENER FUTURE Muhammad Aqdar Fitrah; Syaiful Syaiful; Hermin Hardyanti Utami
Acceleration: Multidisciplinary Research Journal Vol. 2 No. 01 (2024): Acceleration: Multidisciplinary Research Journal
Publisher : PT Akselerasi Karya Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70210/amrj.v2i01.35

Abstract

Waste is the result of human activity which puts great pressure on the environment, especially when waste is not collected and ends up piling up in open places and water bodies. Waste management can generally be done by burning it, throwing it into ditches, landfilling it and most often throwing it into rivers. This design aims to deal with plastic waste by recycling it. The method used is a melting system using a microwave, while pressing uses a hydraulic jack. The use of this tool is to recycle the waste and process it into something that has use and sale value. The results of this bottle cap recycling tool convert plastic bottle cap waste into furniture material, in the form of coasters. The jack used in this tool has a capacity of 10 tons. In tests carried out on 125g bottle caps, they melted for 60 minutes at a temperature of 250°C.
Pengaruh Variasi Quenching-Holding Time terhadap Nilai Tegangan Tarik pada Proses Pengelasan Baja Karbon Rendah Syaiful Syaiful; Muhammad Ghufron Fuadi
Elektriese: Jurnal Sains dan Teknologi Elektro Vol. 14 No. 01 (2024): Artikel Riset Edisi April 2024
Publisher : Information Technology and Science (ITScience)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/elektriese.v14i01.4703

Abstract

Pengelasan telah menjadi teknologi penting dalam berbagai bidang industri, pengelasan memegang peranan yang sangat penting dalam berbagai bidang manufaktur dan industri serta menjadi teknologi kunci yang memungkinkan produksi berbagai produk dan infrastruktur. Tujuan penelitian ini adalah untuk mengetahui nilai tegangan tarik setiap spesimen dari proses heat treatment. Penelitian menggunakan metode eksperimen dengan jumlah spesimen yang akan di uji sebanyak 4 spesimen. Plat baja karbon rendah dilas terlebih dahulu dengan menggunakan las SMAW, jenis elektroda RD-260 (E 6013) dan spesimen dibentuk sesuai standar uji tarik plat ASTM E8. Kemudian dilakukan perlakuan panas pada suhu 4500 C dengan variasi holding time dan media pendingin coolant. Hasil dari proses pembentukan spesimen akan di uji kekuatan tariknya untuk mendapatkan hasil nilai tegangan tarik pada setiap spesimen. Hasil penelitian menunjukkan bahwa tegangan tarik pada spesimen hasil pengelasan dengan perlakuan panas pada suhu 4500 C, holding time selama 30 menit dan media pendingin coolant memiliki nilai tegangan tertinggi sebesar 14,45 N/mm2 dan mengalami penurunan nilai tegangan tarik pada holding time lainnya, sementara untuk spesimen holding time selama 0 menit memiliki nilai tegangan tarik terendah yaitu 13,71 N/mm2. Holding time dengan waktu yang lama dapat meningkatkan nilai tegangan tariknya, disebabkan oleh adanya peningkatan kekuatan material pada spesimen tersebut selama proses perlakuan panas.
Tensile stress analysis against temperature variations with oil coolant in welding and heat treatment process Syaiful Syaiful; Arminas; Mahlina Ekawati
JTTM : Jurnal Terapan Teknik Mesin Vol 6 No 1 (2025): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v6i1.1561

Abstract

Welding has become a very important technology in various manufacturing jobs in the industry. In the manufacturing industry, welding contributes significantly to increasing production efficiency. The purpose of this study was to determine the tensile stress value for each specimen variable resulting from the welding process, forming, heat treatment and tensile testing on the specimen. The study used an experimental method with the number of specimens to be tested as many as 15 specimens from 5 temperature variations used. Low carbon steel plates are first welded using welding techniques, electrode types, welding positions, and weld locations, and specimen formation is carried out according to the ASTM E8 plate tensile test standard. Then heat treatment is carried out with variations in temperature and oil cooling media, the results of the heat treatment process will then be tensile tested on each specimen. The results showed that the tensile stress results obtained for the welding process specimens at a temperature of 700 °C and oil cooling media had the highest stress value of 13.25 N/mm2. There was a decrease in tensile stress at other temperature variations, while for specimens with a temperature of 500 °C and oil cooling media had the lowest stress value of 11.79 N/mm2. Testing using high temperatures can increase the tensile stress value, due to the increase in material strength in the specimen during the heat treatment process.