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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) Jurnal Ilmu dan Teknologi Kelautan Tropis Diponegoro Journal of Management Jurnal Pendidikan Teknik Mesin Konversi ELINVO (Electronics, Informatics, and Vocational Education) An-Nuha : Jurnal Kajian Islam, Pendidikan, Budaya Dan Sosial Prosiding Seminar Nasional Sains dan Teknologi Terapan J-SAKTI (Jurnal Sains Komputer dan Informatika) IDENTIFIKASI: Jurnal Ilmiah Keselamatan, Kesehatan Kerja dan Lindungan Lingkungan Seminar Nasional Lahan Suboptimal Otopro Indonesian Journal of Engineering and Technology (INAJET) J-SAKTI (Jurnal Sains Komputer dan Informatika) SWARNA Madani: Multidisciplinary Scientific Journal IWTJ : International Water Transport Journal Indonesian Proceedings and Annual Conference of Islamic Law And Sharia Economic (IPACILSE) Jurnal Ilmu Ekonomi, Pendidikan dan Teknik (IDENTIK) Jurnal Rekayasa Mesin Automotive Innovations Journal
Aji Nugroho
Teknik Kimia, Fakultas Teknik Universitas Muhammadiyah Jakarta
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Journal : Madani: Multidisciplinary Scientific Journal

 1 
Analisis Variasi Tegangan dalam Proses Pelapisan Nikel-Krom Material ST37 terhadap Ketebalan dan Kekilapan Permukaan Octa, Moch. Hersan Maudian; Utama, Firman Yasa; Puspitasari, Dewi; Nugroho, Aji
Madani: Jurnal Ilmiah Multidisiplin Vol 4, No 1 (2026): February 2026
Publisher : Penerbit Yayasan Daarul Huda Kruengmane

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.18446547

Abstract

The advancement of manufacturing technology has driven the need for innovation in metal surface protection, one of which is through the electroplating method. This process uses electric current to deposit a coating metal onto the surface of a base metal, aiming to improve corrosion resistance, hardness, and surface aesthetics. Electrical voltage is a key parameter that influences the quality of the resulting coating. This study aims to analyze the effect of electrical voltage on the thickness and gloss of electroplated metal coatings. This study employed an experimental approach consisting of a literature review, problem identification, preparation of tools and materials, testing, and data analysis. The main equipment and materials used in this research included ST37 material, a DC power supply with voltage variations of 3 V, 6 V, and 12 V, electrodes, and an electrolyte solution composed of nickel and chromium. Data were obtained by measuring the coating thickness using a Thickness Gauge and surface gloss using a Gloss Meter for each voltage variation. The results of this study indicate that the applied voltage significantly affects the thickness and glossiness of the electroplated coating. The highest values were obtained at 6 V, with an average coating thickness of 20.80 µm and a gloss value of 566 GU, indicating the formation of a smooth and highly reflective surface.
Analysis of the Effect of Nickel–Chrome Electroplating Time Variations on Coating Thickness and Surface Hardness of ST41 Material Arjuna, Ifan Sheva; Utama, Firman Yasa; Puspitasari, Dewi; Nugroho, Aji
Madani: Jurnal Ilmiah Multidisiplin Vol 4, No 1 (2026): February 2026
Publisher : Penerbit Yayasan Daarul Huda Kruengmane

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

Abstract

ST41 steel is a low-carbon steel widely used in the industry due to its toughness, but it has low surface hardness, making it less suitable for components subject to friction. To enhance these surface properties, an electroplating process is performed using nickel as the base layer and chromium as the top layer. This study aims to analyze the effect of varying electroplating time on the thickness and hardness of the ST41 steel surface layer. The research method used was an experiment with variations in nickel coating time of 30 minutes, 45 minutes, and 60 minutes at a voltage of 3 V and a temperature of 55 °C. Chrome plating was carried out for 10 seconds at a voltage of 12 V. Layer thickness testing was conducted using a coating thickness gauge, while surface hardness testing was performed using the Vickers method according to ASTM E384 standards with a load of 50 gf. The research results show that the coating thickness increases with longer plating time, from 18.18 µm at 30 minutes to 20.79 µm at 60 minutes. The highest surface hardness value was obtained at a plating time of 45 minutes, reaching 490.4 HV, then decreased at 60 minutes. This indicates that a plating time of 45 minutes is the most optimal condition for producing a nickel–chrome electroplated layer with the highest surface hardness on ST41 steel.
Analisis Komposisi Bahan Bakar Terhadap Proses Pembakaran pada Kompor Berbahan Bakar Oli Bekas Mubin, Moh. Nurul; Riandadari, Dyah; Wulandari, Diah; Nugroho, Aji
Madani: Jurnal Ilmiah Multidisiplin Vol 4, No 1 (2026): February 2026
Publisher : Penerbit Yayasan Daarul Huda Kruengmane

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.18437715

Abstract

Waste management issues have become a national concern with serious impacts on social, economic, health, and environmental aspects. The low level of awareness among communities and industrial actors in managing waste has contributed to environmental pollution. Along with the development of cities and regions, the volume of waste including used lubricating oil from vehicles and motorized machinery continues to increase. Not only in large cities, but small workshops in rural areas also generate used oil waste, resulting in its widespread distribution across Indonesia. This study employed a field experimental method. The approach was conducted by testing fuel mixture compositions in a stove fueled by used oil to observe the effect of fuel composition on the combustion process. The results indicate that variations in fuel composition significantly affect combustion quality. In the mixture of used oil and kerosene, a ratio of 40:60 produced the highest flame temperature of 378°C, the fastest cooking time of 4.05 minutes, and a blue flame indicating more optimal combustion. In contrast, the 60:40 mixture resulted in the lowest temperature of 318°C, the longest cooking time of 5.07 minutes, and a predominantly orange flame. For the mixture of used oil and biodiesel (biosolar), the 40:60 ratio also demonstrated the best performance, achieving the highest flame temperature of 380°C, the fastest cooking time of 3.52 minutes, and a stable blue flame.
Co-Authors Achmad Nugrahantoro Aldio, Bintang Tri Andrew Sabbathinus Putra Subagio, Andrew Ardiansyah, Ardi Arifianti, Lailatus Sa’diyah Yuniar Arifin, Imanuel Timotius Ariyanto, Sudirman Rizki Arjuna, Ifan Sheva Armelia Putri, Trida Arya Mahendra Sakti Asyroh, Muhammad Fakhril Kaffah Athiek Sri Redjeki Azam Muzakhim Imamuddin Aziz, Dadang Abdul Bekti Wulandari Caecilia Sri Haryanti Dahnia, Lilis Dewi Puspitasari Diah Wulandari Diandra, Chaska Diandra, Chaska Akhila Ade Dwi Susanto Dyah Riandadari Faizah, Isti Ferly Isnomo Abdi Firman Yasa Utama Fitri Ganda, Andita Nataria Ganda, Andita Ganda, Andita Nataria Fitri Husaini, Fahrian Intania, Naila Janti Soegiastuti Kharismajati, Gema khuluq ma'addin, khusnul Ma’addin, Khusnul Khuluq Meirinawati, Hanny Mohammad Noor Hidayat Mubin, Moh. Nurul Munir, Abdullah Faiq Noeryanto, Noeryanto Noor Sulistiyono Nugraha, Muhammad Erlangga Adi Nur Rohman, Muhammad Octa, Moch. Hersan Maudian P. M. Winarno Periyanto, Ari Peryanto, Ari Prasetiyo, Prembayun Pustika, Rita Rachman Arief, Rachman Rahmadania, Ella Ramadhani A, Gilang Ratna Ika Putri Retno Cahya Mukti Rizal Hari Magnadi Rizky Ramadhani, Muhammad Rusydi Umar Sa'adi, Sa'adi Shodikin, Eko Ngabdul Sry Lidya, Jessica Sutrisno, Slamet Prasetyo Sutrisno, Sri Kelana Suwahyo - Tijanul Uluum, Ahmad Tri agung Wildan, Muhammad Wildan Satrio Bimo