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All Journal Transmisi Rekayasa Mesin Phi : Jurnal Pendidikan Fisika dan Terapan Prosiding Semnastek Jurnal SOLMA International Journal for Educational and Vocational Studies Mechonversio: Mechanical Engineering Journal Relativitas : Jurnal Riset Inovasi Pembelajaran Fisika Jurnal Hurriah: Jurnal Evaluasi Pendidikan dan Penelitian Malikussaleh Journal of Mechanical Science Technology Dinamis Mafaza : Jurnal Pengabdian Masyarakat Jurnal Pengabdian Masyarakat Bangsa Journal of Community Empowerment Jurnal Polimesin Jurnal Solusi Masyarakat Dikara
Alchalil Alchalil
Universitas Malikussaleh
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The Influence of Spindle Rotation Variation on The Wear of Carbide Cutting Tools Using a Gedee Weiler Lz-330 G Lathe Aljufri, Aljufri; Syahputra, Rio Mandala; Alchalil; Putra, Reza; Setiawan, Adi; Rahman, Abdul; Suryadi
Malikussaleh Journal of Mechanical Science and Technology Vol. 9 No. 2 (2025): Malikussaleh Journal of Mechanical Science and Technology (MJMST)
Publisher : E-Journal Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v9i2.25326

Abstract

This study was conducted to determine the effect of spindle speed on the wear rate of CNMG 120404 carbide cutting tools using a dry machining process without coolant. The specimens used were AISI 1045 steel shafts, The cutting tool used was a CNMG 120404 carbide with conditions assumed to be the same in each experiment. The machine used was a Gedee Weiler LZ-330 G lathe with fixed parameters of 0.2 mm/revolution feed and 0.4 mm cutting depth, as well as spindle speed variations of 450 rpm and 660 rpm. The cutting time was carried out in stages starting from 5, 10, 15, 20, to 25 seconds. In this study, the parameters observed included tool wear and the surface roughness of the turning results on the AISI 1045 specimen. Tool wear was measured using visual macro documentation, while surface roughness was tested with a surface roughness tester. The results showed that the lowest wear value occurred at 450 rpm with a cutting time of 5 seconds, amounting to 0.012 mm, while the highest wear was achieved at 660 rpm with a cutting time of 25 seconds, amounting to 0.036 mm. In terms of surface quality, the lowest roughness value was obtained at 450 rpm with a cutting time of 5 seconds, amounting to 2.43 µm, while the highest roughness occurred at 660 rpm with a cutting time of 25 seconds, amounting to 4.56 µm. This data shows that the higher the speed and the longer the cutting time, the greater the tool wear and the lower the surface quality due to friction and increased temperature in the cutting zone. Wear on carbide tools is more influenced by friction between the tool and the workpiece and the duration of cutting. The speed factor is not as dominant as the effects of friction and cutting duration.
Pelatihan Rancang Bangun PLTS Off Grid untuk Peningkatan Ekonomi Mikro Masyarakat Gampong Reuleut Barat Muhammad, Muhammad; Meliala, Selamat; Ezwarsyah, Ezwarsyah; Amri, Amri; Alchalil, Alchalil; Jannah, Misbahul
Jurnal SOLMA Vol. 14 No. 3 (2025)
Publisher : Universitas Muhammadiyah Prof. DR. Hamka (UHAMKA Press)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/solma.v14i3.20862

Abstract

Background: Perkembangan energi terbarukan mendorong pemanfaatan Pembangkit Listrik Tenaga Surya (PLTS) off-grid sebagai alternatif sumber energi. Gampong Reuleut Barat, Kecamatan Muara Batu, membutuhkan program positif bagi pemuda untuk meningkatkan keterampilan sekaligus mendukung ekonomi mikro. Program ini bertujuan meningkatkan kompetensi pemuda dalam merancang dan membangun sistem PLTS off-grid sebagai backup PLN. Metode: Pelatihan dilaksanakan kepada pemuda Gampong Reuleut Barat melalui pemberian materi dasar PLTS, praktik merakit perangkat keras, dan evaluasi pemahaman dengan kuisioner. Kegiatan dilakukan secara partisipatif agar peserta aktif dalam setiap tahapan. Hasil: Peserta mampu merakit komponen PLTS secara bertahap sesuai materi pelatihan. Evaluasi kuisioner menunjukkan skor rata-rata pemahaman sebesar 66, menandakan peningkatan keterampilan teknis dan pemahaman konsep dasar. Kesimpulan: Pelatihan rancang bangun PLTS off-grid berhasil meningkatkan keterampilan pemuda desa sekaligus mendukung pengembangan ekonomi mikro berbasis energi terbarukan.
Pemberdayaan Masyarakat Blang Pulo Kota Lhokseumawe Melalui Inovasi Teknologi Pengolahan Limbah Kelapa Muda Menjadi Produk Bioarang Adi Setiawan; Alchalil Alchalil; Muhammad Daud; Ahmad Nayan; Mohammad Heikal; Nurmalita Nurmalita; Firman Karim; Umar Ramadhan Siregar; Ochitria Cintia Br. Simajuntak; Ichsan Alwi Nasution
Jurnal Solusi Masyarakat Dikara Vol 4, No 3 (2024): Desember 2024
Publisher : Yayasan Lembaga Riset dan Inovasi Dikara

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

Abstract

Desa Blang Pulo merupakan salah satu Desa Binaan dari Universitas Malikussaleh dan berdekatan dengan kampus Bukit Indah Universitas Malikussaleh. Masyarakat di Desa Blang Pulo memiliki mata pencarian sebagai jualan toko kelontong, grosir, maupun penjual minuman salah satunya kelapa muda. Limbah kelapa ini memang termasuk limbah organik, namun memiliki kadar air yang tinggi dan bersifat sangat keras. Hal ini membuat kulit dan sabut kelapa muda sulit diurai oleh mikroorganisme. Sulitnya terurai dan memiliki ukuran yang cukup besar, menjadikan limbah ini mengalami penumpukkan sehingga berdampak buruk pada lingkungan. Di sisi lain, arang kayu yang digunakan selama ini bersumber dari tanaman hutan yang ditebang secara illegal sehingga terjadi deforestrasi yang mengancam lingkungan hidup. Untuk mengatasi persoalan ini dikembangkan sebuah strategi melalui pengolahan limbah kelapa muda menjadi bioarang dengan teknologi kiln. Metode pendekatan yang ditawarkan untuk menyelesaikan persoalan mitra adalah dalam bentuk pelatihan dan pembinaan/ penendampingan pada pengolahan limbah kelapa muda menjadi bioarang yang dapat digunakan oleh masyarakat sebagai bahan bakar padat pengganti arang kayu. Tahapan kegiatan ini diawali dengan memberikan pengetahuan mitra tentang pengelolaan limbah biomassa, pembuatan bioarang dari limbah kelapa muda menggunakan teknologi kiln. Harapan utama dari kegiatan ini adalah meningkatkan kesejahteraan masyarakat desa Blang Pulo dengan memanfaatkan limbah kelapa muda pada menjadi bioarang, serta dapat menghasilkan produk turunan dari bioarang seperti bio-briket dan bio-pelet yang dapat dikomersialkan.
Effect of washing and torrefaction pretreatments on fuel properties of rice husk-based bio-pellets Alchalil Alchalil; Rizky Iskandar; Adi Setiawan; Zulmiardi Zulmiardi; Athiyah Rana; Azhar Syahputra
Jurnal Polimesin Vol 24, No 3 (2026): June
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v24i3.9120

Abstract

Rice husk is an abundant agricultural waste in Indonesia and has potential as a biomass fuel for co-firing in steam power plant boilers. This study investigated the effects of washing and torrefaction pretreatments on the fuel properties of rice husk-based bio-pellets to reduce ash content and improve calorific value. Rice husk was washed using water at 70 ± 5°C under two conditions, with stirring and without stirring, while untreated rice husk was used as a control. Torrefaction was conducted at 260°C, and the treated biomass was pelletized using tapioca starch as a binder at 30% of the raw material weight. The results showed that the lowest ash content (26.362%) was obtained from bio-pellets produced from rice husk washed without stirring, indicating that washing was effective in reducing ash content. The highest calorific value (4456.4 kcal/kg) was recorded in bio-pellets produced from untreated rice husk, while the highest combustion rate (0.504 g/min) was observed in the washed and torrefied samples. The findings indicate a trade-off between ash reduction and energy performance, depending on the pretreatment combination. However, all samples showed relatively high ash content (26%–36%), which may limit their direct suitability for co-firing without further ash reduction treatment.
Co-Authors Abdul Rahman Abdul Rahman Absa, Munzir Abubakar Dabet Adi Setiawan Aditya Kamanurandi Aditya, Vikra Afrinanda, Cut Ahmad Nayan Akmal Akmal Akmal, Ajmir Aljufri Aljufri aljufri aljufri, aljufri Alkhaidir, Alkhaidir Amri Amri Andika Syahputra Aries, Muhlin Asnawi Athiyah Rana Audina, Nabillah Azhar Syahputra Azis, Andy Chatarina Umbul Wahyuni Dabet, Abubakar Dahrum, Dahrum Dirga, Muhammad Edi Rahman, Edi Ezwarsyah Ezwarsyah Fachry Abda El Rahman Fajriana Fatwa, Islami Fauzan, Saniar Firman Karim Hakim, Syahirman Halimatus Sakdiah Hayati, Masrura Henni Fitriani Herlina Herlina I. Irwansyah Ichsan Alwi Nasution Irwansyah Irwansyah Jumadil, Jumadil M. Iqbal M. Satria Misbahul Jannah Mohammad Heikal Mufti, Rijalul Muhammad Muhammad Daud Muhammad Fauzan Muhammad Habibi Muhammad Muhammad Muhammad Nuzan Rizki Muhammad Rizqi Almuhtadee Muhammad Sayuthi Muhammad, Iryana N. Nazaruddin Nasrah, Sayni Nasrah, Sayni Nuraida Nuraida Nuraini Fatmi Nuraini Fatmi, Nuraini Nurmalita Nurmalita Nurul Islami, Nurul Nurwijayanti Ochitria Cintia Br. Simajuntak Padang, Welly Liku Putra, Reza Rifanida Rifanida Riskina, Shafira Rizky Iskandar Rizqon Hasibuan Rustam Efendi Safitri, Dinda Safriwardi, Ferri Satria, M. Selamat Meliala Shafira Riskina Simanjuntak, Ochitria Cintia Br Siraj Siraj Siraj Siti Nurjannah Supia, Dede Irawan Suryadi Suryadi Suryadi Syahputra, Azhar Syahputra, Rio Mandala T Taufik Tando, Arjal Taufiq Taufiq Taufiq Taufiq Umar Ramadhan Siregar Yasir Amani Z Zulfahmi Zahara, Eva Zulfahmi Z Zulfahmi Zulfahmi Zulmiardi, Zulmiardi