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Journal : Madani: Multidisciplinary Scientific Journal

Analisis Pembuatan Filamen 3D Printing Berbahan Pati Kulit Singkong Dengan Polylactic Acid (PLA) Pada Mesin Ekstruder Ambarita, Gilbert Doni; Ganda, Andita Nataria Fitir; Wulandari, Diah; Puspitasari, Dewi
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.18330098

Abstract

PLA is a quite popular type of filament because this material is often used as a raw material for bioplastics which have the ability to decompose naturally. However, the price of PLA filament is also quite high, making it inaccessible to everyone, and there is a weakness in the characteristics of polylactic acid, namely its hydrophobic nature. Cassava peel starch as an alternative additive possesses a hydrophilic nature to cover the weakness of PLA's properties. However, an incorrect combination ratio of the two materials will worsen the structural strength of the PLA and cassava peel starch. The objective of this research is to analyze the tensile strength of polylactic acid material with cassava peel starch at ratios of (PLA) 60:40 (CPS), (PLA) 70:30 (CPS), and (PLA) 80:20 (CPS) on an extruder machine. This research uses a quantitative approach experimental method. The specimen preparation was carried out by first mixing the two materials according to the determined ratio, and then processing them in an extruder machine at a temperature of 160°C. The resulting specimens were tested following the ASTM D2256 standard. The research results show that the (PLA) 80:20 (CPS) ratio has the highest average tensile strength of 44.43 MPa with a tensile strain of 0,0241. Thus, the lower the starch ratio, the better the increase in the obtained tensile strength
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.
Co-Authors . Misbakhudin . Nalim Abdul Aziz Abdul Muis Abdul Rosyid, Ocid Abdullah, Andi Aziz Abdulloh, Isa Yuanata Achmad, Fendi Afero Pranesti, Dennova Agnes Widyaningrum Agustina, Sri Mumaeni Ahmad Luqman Hakim Ahmad Ubaedi Fathuddin Aji Nugroho Akmal Hidayat Alfan Arfian Ambarita, Gilbert Doni Amirah Mustarin Amsal, Andi Yasir Amy Nindia Carabelly Andi Sukainah Andita Nataria Fitri Ganda Andung Dwi Haryanto Aneka Firdaus Anitasari, Fariska Dyanis Annisa Rahmawati Anto Budi Listyawan Aprilia, Rizky Wulan Apriliyawan, Beni Arifin Arifin Arifin, Rahmad Ariska, Ria Arjuna, Ifan Sheva Arlando, Choga Ilham Arya Mahendra Sakti Aryanto, Zaki Yuli Aryanto Asgaf, Khalifah Ashrori, Moch. Kharis Aspriyanto, Didit Astuti - Aswar Aswar Aswar Asyhar, Achmad Hanif At-Thoyyar, Aila Aulia Azahro , Fany Aulia, Noor Rizki Ayu Soraya, Imelia Ayu, Shinta Arini Bagus Afandi, Muhamad Bambang Sutopo Barlin Barlin Budiningtyas, Dwi Putri Chadijah, Andi Chusna Maulida Damayanti, Wulan Davareza, Tinton Debby Saputera, Debby Diah Kusuma Pratiwi Diah Savitri Ernawati Diah Wulandari Diana Wibowo Diapati, Siti Maifa Didid Diapari Diniyati, Lena Sri Diyahwati, Diyahwati Dyah Riandadari Dzimar, Muhammad Efendi, Ibnu Mirza Eka Marthanty Indah Lestari Eka Marthanty Indah Lestari, Eka Marthanty Indah Eka Utami, Nurhabibah Paramitha Eko Saputra, Aditiya Wahyu ELAH, ELAH Ellyanie Ellyanie Ellyza Herda Emalia, Lilis Eva Tuckyta Sari Sujatna Fachriani, Fachriani Fauzatinnisa, Amirah Ferly Isnomo Abdi Firdaus, I Wayan Arya Krishnawan Firdaus, I Wayan Arya Krisnawan Firiski, Edwi Febrian Firman Yasa Utama Firza, Firza ichmamudin sarfani Fitri Ganda, Andita Nataria Freddy, Antonius Ganda, Andita Ganda, Andita Nataria Fitir Ganda, Andita Nataria Fitri Ginta, Turnad Lenggo Gunawan Gunawan Gustini, Gustini Haedar, Ali Halim, Muhammad Bhilal Hardiyati*, Iin Hasan Basri Hayati, Auliya Aenul Hendri Chandra Hendry Hidalgo, Andres Migael Hilmansyah, Wisnu Husda, Baso Riadi Hutabarat, Zuhri Hutabarat Hutabarat, Zuhri Saputra Hutapea, Felix Theo Yusama Ichrom Nahzi, Muhammad Yanuar IKA SARI RAKHMAWATI, NUR Imowanto, Yuddy Inayah, Faidhul Indah Lestari, Eka Marthanti Indarto Indarto Indri Erwhani Indrowaty, Sri Aju - Irsyadi Yani Ismail Thamrin Ismawati, Sekar Ismi Prihandari Isriani Hardini Izzatus Tsamroh, Dewi Jannah, Azzukhrufia Jayadilaga, Yadi Judijanto, Loso Juliandhika, Muhammad Wahyu Jusmiati Jusmiati Kartika Sari Wijayaningsih Karyono Karyono Kasamira Dewi Abrori, Rafila Khaeruddin, Rizky Khairima, Amina Khairina, Niketa Khasani Khasani Khoerunnisa, Sabina Khumaedi, Agus Komariyah, Nor Laeli Lahming Lathiif, Abdul Leuhery, Ferdy Lia Amelia Lukman, Andi Lunetta, Naura Firda Maharani Laillyza Apriasari Maisaroh Maisaroh Manggala, Exgha Dwi Putra Manggalasari, Lena Citra Marlena Martini, Titin MARWANI Marwani Marwani, Marwani Maulana, Adimashqi Maulida, Husna Meliyana R, Sitti Masyitah Mihrani , Mihrani Mohamad Ikbal Riski Danial Mohd-Said, Shahida Muhammad Ainur Rosiqin, Muhammad Muhammad Junda Muhammad Mukhid Almudakir Muhammad Shulthoni Muhlis Muhlis Mukaromah, Nisaul Mustapha, Mazli Mutammam Nadella Lesmana Nadhdhif Fikri Ferdiansyah Nadhifah, Umi Nada Nadya Inda Syartanti Najah, Syafinatunnajah Namira Aghnina, A.M. Della Nasrul, Nasrulloh Ibrahim Nataria Fitri Ganda, Andita Nazarudin, Fauzan Nazilah, Rohmatun Nikijuluw, Renata C.G.V Norma Nofianto Novanta, Nabella Maharani Novita Sari Nugroho, Bakti Adi Nur Insana Salam Nur Khasanah Nur Khasanah Nur Rahmah Nurhaliza, Diana Putri Nurmila, Nurmila Ocid Abdul Rosyid Octa, Moch. Hersan Maudian Octaviana, Inggil Tiara Oppusunggu, Romiana Pamenang, Ferli Rycarhana Pindobilowo, Pindobilowo Prabowo, Janu Prakoso, Akbar Teguh Puji Astuti, Febru Purnomo Purnomo Rachman, Aris Al Nur Raharti, Rini rahayu, eka puji Rahma, Nur Rahmah, Rayinda Eva Rahmah, Riezki Amalia Rahmania Pamungkas, Rahmania Rahmi Rahmi Ramadhani A, Gilang Ramli, Hartini Ramos Somya Ratnawati Ratnawati Razibi, Nor Diane Reni Fatmasari Syafruddin, Reni Fatmasari Restiana, Evi Retno Dewi Ambarastuti Retno Pudji Rahayu Rhesa, Muhammad Riezky Maya Probosari Riman Sipahutar Riskiana * Ristiana, Evi Rosihan Adhani, Rosihan Rosyid, Ocid Abdul Rr. Poppy Puspitasari Saelan, Saelan Saldina, Iswatul Saleh, Andi Rahmat Salsabila Karno, Dhya Aurellia Salu Padang, Nely Saputra, M. A. Ade Saputra, M.A. Ade Saripah, Ai Setia Asyanti Setianingsih, Endang Setyaningrum, Novi Ayu Sherli Diana Sitepu, Alexander Sri Damayanti Sri Hartati Sri Wahyuni Sudarmanto Jayanegara Sukhemi Sukhemi, Sukhemi Sulistyorini, Elisa sultan Sultan Sultan Sunyoto Sunyoto Suryandari, Dewi Syahrina, Fitri Tedjohartoko, Andrew Tjakradidjaja, Anita S Tjakradidjaja, Anita S Triyuliarto, Dwiwardoyo Ulfa, Faiza Ulfah, Mulia Ulum, Diah Ariibatul Utama Putra, Risky Utami, Juliyatin Putri Utami, Nurhabibah Paramitha Eka Wahyono, Edi Wahyudi, Maman Diki Wahyuni, Titis Wardhana, Agung Satria Wardhani, Rr Arsyita Sri Widoretno, Yustin Setiya Wijaya, Nieke Andina Wildan Mufti Wirdana Wirdateti Wirdateti, Wirdateti Wiwik Handayani Wulandari, Taurina Ayu Yanto, Subari Yuda, Mohammad Wira Yulendasari, Rika Yulia Resti Yunian, AA Yusrinie Wasiaturrahmah Yustinasani, Katriana Zahra, Syafhika Rosilatu Zulkarnain Zulkarnain