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All Journal Jurnal Fisika FLUX Info-Teknik Turbo : Jurnal Program Studi Teknik Mesin Civil and Environmental Science Journal (CIVENSE) Jurnal Elemen Jurnal IMPACT: Implementation and Action International Journal of Education, Science, Technology, and Engineering (IJESTE) Scientific Journal of Mechanical Engineering Kinematika JTAM ROTARY International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Jernih : Jurnal Tugas Akhir Mahasiswa Jurnal Inovasi Penelitian dan Pengabdian Masyarakat
Akhmad Syarief
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Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Other

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Journal : JTAM ROTARY

 1 
PERANCANGAN ULANG MESIN PENGADUK BAHAN BAKU BRIKET SERBUK KAYU MERANTI (SHOREA SPP) Syarief, Akhmad; Mulgi, M Abdul; Ansyah, Pathur Razi
JTAM ROTARY Vol 4, No 2 (2022): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v4i2.6665

Abstract

Tahapan penelitian ini secara garis besar meliputi perancangan dan perhitungan, implementasi rancangan dalam bentuk gambar desain, pembuatan dan perakitan mesin, serta pengujian mesin hasil rancang bangun mesin motor bensin diisi bensin 2 liter, lalu di panaskan kurang lebih 5 menit. Saat mesin sudah panas, langkah selanjutnya menaruh serbuk kayu meranti ke dalam wadah pengaduk kemudian air panas dicampur dengan tepung terigu lalu diaduk hingga mengental yang berfungsi sebagai perekat perekat yang sudah jadi dimasukan ke wadah pengaduk yang berisi serbuk kayu meranti tunggu kurang lebih 15 menit agar tercampur merata. Jika Waktu 15 menit maka lepaskan penutup keluar bahan yang sudah jadi. Kapasitas mesin pengaduk adonan briket serbuk arang adalah 38,66 kg/jam dan daya yang.digunakan untuk menggerakkan poros sirip pengaduk adalah 0,27 watt. Diameter pulley motor 65mm dan diameter pulley penggerak poros sirif adalah 65mm. Bahan poros yang digunakan adalah ST37 dengan kekuatan tarik (σB) 37 kg/mm2. Diameter poros sirip yang digunakan 12 mm dan panjang poros 1030 mm. Bantalan radial bola sudut dalam dengan nomor bantalan UCP 205 yang digunakan untuk menopang poros. In general, this research includes designing and calculating, implementing the design in the form of design drawings, manufacturing and assembling the engine, as well as testing the engine design results from a gasoline engine filled with 2 liters of gasoline, then heated for approximately 5 minutes. When the machine is hot, the next step is to put the meranti wood powder into the mixing container. Then hot water is mixed with flour and stirred until it thickens which functions as an adhesive. The finished adhesive is put into a mixing container containing meranti wood powder, wait for about 15 minutes to mix evenly. If the time is 15 minutes, then remove the cover to come out of the finished material. The capacity of the charcoal powder briquette dough mixer is 38.66 kg/hour and the power required to move the fin shaft is 0.27 watts. The diameter of the motor pulley is 65mm, and the diameter of the pulley is the fin shaft drive is 65mm.The shaft material used is ST37 with a tensile strength (σB) of 37 kg/mm2.The diameter of the fin shaft used is 12mm and the length of the shaft is 1030mm.The bearings used to support the shaft are radial inner angle ball bearings with number UCP bearing 205.
PENGARUH FRAKSI VOLUME HYBRID COMPOSITE BULU ITIK DAN SERAT PURUN TIKUS BERMATRIK POLYSTER TERHADAP KEKUATAN TEKAN DAN BENTUK PATAHAN Syarief, Akhmad; Fauzi, Dimas Habib
JTAM ROTARY Vol 5, No 2 (2023): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v5i2.9766

Abstract

Material komposit umumnya dipahami sebagai sebuah material gabungan antara sebuah matrik dan satu atau beberapa penguat (reinforced), dengan sifat berbeda satu dengan yang lain. Tujuan dari penelitian ini adalah untuk mengetahui nilai kekuatan tekan serta menganalisis bentuk patahan dari hybrid composite bulu itik (Anas Plathycus Borneo) – serat purun tikus (Eleocharis Dulcis) bermatriks polyester terhadap uji tekan. Pengujian tekan yang dilakukan menggunakan standar ASTM D1621-00 . Hasil penelitian diperoleh kuat tekan tertinggi dimiliki oleh spesimen dengan fraksi volume 10% bulu itik – 90% serat purun tikus, yaitu 130,98 MPa dan nilai kuat tekan terendah dimiliki oleh spesimen dengan fraksi volume 90% bulu itik – 10% serat purun tikus, yaitu 86,29 Mpa. Nilai tersebut terlihat bahwa semakin tinggi komposisi purun tikus maka semakin tinggi kuat tekannya dan jika semakin tinggi komposisi serat bulu itik makan nilai kuat tekannya akan menurun. Spesimen uji tekan dengan nilai tertinggi dan terendah mengalami jenis patahan Fibre Pull Out.Composite materials are generally understood as composite materials between a matrix and one or several reinforced (reinforced), with different properties from one another. The purpose of this study was to determine the value of compressive strength and to analyze the fracture shape of the hybrid composite of duck down (Anas Plathycus Borneo) – water chestnuts (Eleocharis Dulcis) fiber with a polyester matrix against compression tests. Compressive testing was carried out using the ASTM D1621-00 standard. The results showed that the highest compressive strength was obtained by a specimen with a volume fraction of 10% duck hair – 90% water chesnuts fiber, namely 130.98 MPa, and the lowest compressive strength value was owned by a specimen with a volume fraction of 90% duck hair – 10% water chesnuts fiber 86.29 MPa. It can be seen that the higher the composition of the water chesnuts, the higher the compressive strength, and if the higher the composition of the duck hair fiber, the compressive strength value will decrease. The compressive test specimens with the highest and lowest values experienced a type of Fiber Pull Out fracture.
PENGARUH VARIASI ARUS PENGELASAN GMAW TERHADAP DISTORSI DAN KEKERASAN PADA BAJA ST37 POST HEATING 400˚C Zuhri Simanjuntak, Rinal Fadel; Ansyah, Pathur Razi; Ramadhan, Muhammad Nizar; Syarief, Akhmad
JTAM ROTARY Vol 6, No 2 (2024): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v6i2.12540

Abstract

Penelitian ini memiliki tujuan untuk mengeksplorasi dampak variasi arus pengelasan GMAW terhadap distorsi dan kekerasan pada material baja ST37 setelah dipanaskan pada suhu 400˚C. Hasil penelitian mengenai variasi arus dan perlakuan post heating pada suhu 400°C di daerah HAZ dan pada area Weld Metal menunjukkan perbedaan yang signifikan dalam nilai kekerasan. Perbedaan ini dipengaruhi oleh variasi arus yang diberikan; semakin tinggi arusnya, semakin besar pula pelunakan logam yang terjadi. Sebagai contoh, pada arus 100 A, nilai kekerasan tercatat sebesar 65 HRB, sedangkan pada arus 120 A, nilai tersebut turun menjadi 56,4 HRB. Di bagian Weld Metal, nilai kekerasan tertinggi terlihat pada arus 80 A (59,8 HRB), dan nilai terendah terdapat pada arus 120 A (51,1 HRB). Dari ketiga perbedaan suhu yang diberikan kepada spesimen dengan arus yang berbeda, yaitu 80 A, 100 A, dan 120 A, memiliki nilai distorsi rata-rata tertinggi pada arus 80 A (1,17 mm), diikuti oleh arus 100 A (0,85 mm), dan terendah pada arus 120 A (0,68 mm). Hasil penelitian uji distorsi ini menunjukkan bahwa perlakuan post heating sangat berpengaruh terhadap nilai distorsi pada spesimen tersebut. This study seeks to investigate the impact of varying GMAW welding currents on distortion and hardness in ST37 steel material post-heating at 400˚C. The research findings on the variations in current and post-heating treatment at 400°C in both the HAZ (Heat Affected Zone) and Weld Metal areas reveal significant differences in hardness values. These differences are attributed to variations in the current supplied; the higher the current, the greater the metal melting (softening) observed. For instance, at 100 A, the hardness value is recorded at 65 HRB, while at 120 A, it decreases to 56.4 HRB. In the Weld Metal section, the highest hardness value is observed at 80 A (59.8 HRB), and the lowest is at 120 A (51.1 HRB). Among the three different current levels (80 A, 100 A, and 120 A) applied to spesimens, the average distortion value is highest at 80 A (1.17 mm), followed by 100 A (0.85 mm), and lowest at 120 A (0.68 mm). These results underscore the significant impact of post-heating treatment on the distortion of the spesimen.
Co-Authors Abdul Aziz Achmad Febrian Hidayat Aditya Eko Kristanto Akbar, Jamaluddin Muhammad Akhmad Ghiffary Budianto Akhmad Robittah Andy Nugraha Anugrahto, Ripal Ardiyat, Ichwan Noor Arifin, Zulkarnain Aswar Aswar Atmana, Fendy Ari Aufa Ramadhasari, Aulia Awaly, Nuryasin Qadimil Azis, Alif Putra Bayu Setiawan Chairul Abdi Dali Dali Fadilah, Aris Fadliyanur Fadliyanur, Fadliyanur Fathirahman, Muhammad Fauzi, Dimas Habib Galang P, Defrihans Geovani Glen Supit Gunawan Rudi Cahyono Iberahim, Jerry Iphan Fitrian Radam Luqmanul Hakim Ma'ruf, Ma'ruf Mastiadi Tamjidillah, Mastiadi Ma’ruf, Ma’ruf Miftach Secha Mikhael, Allexyus Muhammad Amin Muhammad Nizar Ramadhan Muhammad Wal Mursalin Muhammad Yusuf Mulgi, M Abdul Napitulu, Hansen Rivaldo Nihin, Aji Nugroho, Fiqrei Akbar Nugroho, Wisnu Setyo Parekke, Simon Pathur Razi Ansyah Pratama, Bagus Harits Raliannoor Ralianoor Ramadhasari, Aulia Aufa Ristiawan, Ichsan Rohim, M. Nabil Sabitah, A'yan Saputra, M. Reynaldi Perdana Setiawan, Dadang Aling Shopie, Dwilma Supit, Geovani Glen Surono, Bambang Suryanta, Dhanu Suryanta, Dhanu Suryanta Tumanggor, Agustina Hotma Uli Zuhri Simanjuntak, Rinal Fadel