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All Journal KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan JMPM (Jurnal Material dan Proses Manufaktur) QARDHUL HASAN: MEDIA PENGABDIAN KEPADA MASYARAKAT Jurnal Cakrawala Maritim Jurnal Sains Materi Indonesia
Nisazarifa, Adristi
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Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Pelatihan Welding Inspector di Politeknik Perkapalan Negeri Surabaya Guna Memenuhi Kebutuhan Tenaga Kerja Berkualifikasi di Bidang Pengelasan Fikry, Izzul; Sriwijayasih, Imaniah; Abdillah, Hayy Nur; Wuryaningrum, Nanda Dwi; Khaqiqi, Alwi Sina; Hazman, Muhammad Al; Widyastuti, Indri Ika; Nisazarifa, Adristi; Arninputranto, Wibowo; Wibowo, Alvalo Toto
Jurnal Cakrawala Maritim Vol. 8 No. 1 (2025): Jurnal Cakrawala Maritim
Publisher : P3M Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35991/jcm.v8i1.33

Abstract

Teknik Pengelasan (welding) Politeknik Perkapalan Negeri Surabaya mempunyai peralatan praktek dan laboratorium pengelasan . Salah satu teknik dari pengelasan tersebut yakni penyambungan logam dengan cara mencairkan sebagian logam induk dan logam pengisi dengan atau tanpa tekanan dan dengan atau tanpa logam penambah menghasilkan sambungan yang kontinu. Teknik Pengelasan PPNS menyelenggarakan pelatihan Welding Inspector bersertifikat BNSP (Badan Nasional Sertifikasi Profesi) guna memenuhi kebutuhan keahlian dalam negeri maupun luar negeri. Metode yang dipakai dalam pelatihan ini yakni pelatihan, praktik, evaluasi. dan uji kompetensi. Hasil dari Pelatihan Welding Inspector yang diadakan pada 1 Juli - 3 Agustus 2024 di Politeknik Perkapalan Negeri Surabaya berhasil dilakukan dengan tingkat kelulusan 100%. Semua tahapan telah dilalui oleh peserta, dimana materi-materi welding inspection diberikan selama 18 hari yang didalamnya juga termasuk evaluasi materi, selanjutnya peserta melaksanakan kegiatan practical selama 10 hari, dan diakhiri dengan evaluasi practical. Jumlah kelulusan sempurna, menunjukkan bahwa pelatihan yang telah diberikan memiliki impact yang besar bagi peserta. Dengan diadakan pelatihan ini diharapkan Peserta pelatihan akan mendapatkan pengetahuan mengenai proses pengelasan, standar dan kode dalam pengelasan, perilaku material saat proses pengelasan, inspeksi hasil pengelasan, metode pengujian merusak dan tidak merusak, serta kualifikasi pengelasan.
Analysis of the Effect of Shielding Gas Composition and FCAW Parameters on Shipbuilding Steel Plate for Ship Hull Production Al Amin, Mochammad Karim; Soelistijono, Rafi Febian; Nisazarifa, Adristi; Ma'ruf, Buana; Nugroho, Priyambodo Nur Ardi; Mustaghfirin, Muhammad Anis; Putera, Erwien Yuliansyah; Irawan, Bambang; Anggara, Dika; Widodo, Eriek Wahyu Restu; Bachtiar, Bachtiar; Ibad, Ilham Khoirul; Pratama Putra, Mochammad Yudha Aditya
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 22, No 1 (2025): February
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/kapal.v22i1.67434

Abstract

Shielding gas is an important thing to protect the weld metal from impurities during the welding process. Ar, CO2, and mixing gas of Ar-CO2 are often used as a shielding gas in the marine industry. Differences in shielding gases and the current of welding could affect the microstructure and hardness of welding. This research analyzed the microstructure and hardness from the FCAW process of Shipbuilding Steel Plate using mixing gas and shielding gas of 100% CO2 with variations of current 180 and 195 A. The filler metal which has been used was A 5.20 E-71T1. The microstructure for the weld metal with 100% CO2 shielding gas was pearlite, widmanstatten ferrite, grain ferrite, and polygonal ferrite; otherwise for mixing shielding gas of 80% Ar + 20% CO2 and 75%Ar + 25% CO2 was found, the structure of pearlite, grain ferrite, and acicular ferrite. The effect of variations in the shielding gas composition and welding current that produced the highest hardness value was achieved with a shielding gas composition of 80% Ar + 20% CO2 and a current of 195 A, resulting in a hardness of 159.2 HV in the weld area.
Green Action sebagai Upaya Rehabilitasi Ekosistem Mangrove di Kelurahan Romokalisari, Surabaya Alwi, Alwi Sina Khaqiqi; Rahayuningsih, Siti; Al Hazman, Muhammad; Widyastuti, Indri ika; Sholikah, Evi Nafiatus; Gastriani, Ovi Prina; Wibowo, Sekarsari; Nisazarifa, Adristi; Pujiputra, Anggarjuna Puncak; Sukarno, Friska Intan; Brian, Thomas; Parman
Jurnal Cakrawala Maritim Vol. 8 No. 2 (2025): Jurnal Cakrawala Maritim
Publisher : P3M Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35991/jcm.v8i2.40

Abstract

Mangroves have several functions, including maintaining biological balance in coastal ecosystems and tourism. On the other hand, mangroves are also very vulnerable to natural disturbances, anthropogenic, land conversion, and even pollution from various human activities. The success of mangrove planting activities does not only depend on the selection of the type of mangrove to be planted, but also on the selection of a suitable location to support its growth. Mangroves in Romokalisari Village, Surabaya are currently still relatively few. This needs to be planted because the mangroves function as wave breakers and tourist attractions. Mangrove planting activities in Romokalisari Village, Surabaya, were carried out by residents, lecturers and students of the Surabaya State Polytechnic of Shipping. The results of the mangrove planting are expected to have a positive impact on Romokalisari Village, Surabaya and its surroundings.
Pemanfaatan Teknologi Las untuk Meningkatkan Keterampilan Masyarakat dalam Mendukung Wisata Religi Desa Al Amin, Mochammad Karim; Kurniyanto, Hendri Budi; Amri, Moh Syaiful; Wibowo, Alvalo Toto; Anggara, Dika; Kusminah, Imah Luluk; Rohmat, Imam Khoirul; Nisazarifa, Adristi; Sasongko, Kukilo Edy; Mustain, Eko
Qardhul Hasan: Media Pengabdian kepada Masyarakat Vol. 11 No. 2 (2025): Qardhul Hasan: Media Pengabdian kepada Masyarakat
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/qh.v11i2.20925

Abstract

Warga Desa Balun, Kecamatan Turi, Kabupaten Lamongan, saat ini masih minim pengetahuan dan keahlian dasar pengelasan. Di sisi lain, dunia industry menuntut tenaga kerja yang semakin terspesialisasi, terutama dalam proses dan mutu hasil las. Agar desa mampu bersaing, peningkatan kompetensi serta profesionalisme penduduk mutlak diperlukan-salah satunya lewat program pelatihan pengelasan dasar. Kegiatan pengabdian ini dirancang mendukung pengembangan Desa Balun sebagai destinasi wisata religi sekaligus “Desa Pancasila yang dikenal karena toleransi nya yang tinggi berkat keberadaan enam rumah ibadah (Hindu, Buddha, Islam, Kristen, Katolik, dan Konghucu). Pelatihan pengelasan ditargetkan membantu memperbaiki serta membangun sarana-prasarana penunjang pariwisata tersebut. Riset dilakukan memakai pendekatan kualitatif-partisipatif melalui observasi lapangan, dan penyebaran angket. Hasilnya memperlihatkan bahwa pendampingan terstruktur mampu meningkatkan keterampilan warga memproduksi kerajinan berbahan logam, berdampak langsung pada kenaikan pendapatan. Penguasaan teknik pengelasan juga mempercepat pembangunan dan pemeliharaan fasilitas wisata, sehingga daya tarik kawasan religi kian tumbuh. Dengan demikian, pemanfaatan teknologi dan pelatihan pengelasan terbukti efektif menumbuhkan partisipasi masyarakat serta meningkatkan kualitas dan kuantitas infrastruktur wisata di Desa Balun.
Study of the Mechanical Properties of Ship Cleats Fabricated from Recycled High-Density Polyethylene Nisazarifa, Adristi; Rosalina, Amanda; Nursyifaulkhair, Desrilia; Wibawa, I Putu Arta; Saputra, Muhammad Rizki Andika
JMPM (Jurnal Material dan Proses Manufaktur) Vol. 9 No. 2 (2025): December
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v9i2.29556

Abstract

High-Density Polyethylene (HDPE), known for its high resistance to chemicals and impact, as well as its low carbon emission production process. However, the high production of HDPE plastic waste poses a significant challenge in the maritime world. This study focuses on efforts to recycle HDPE waste generated from the shipbuilding process at the Non-Metal Workshop of the Surabaya State Shipping Polytechnic (PPNS). This HDPE waste has great potential to be processed into ship components, including cleats. Cleats are essential devices on ships that function to tie ropes. HDPE waste is molded into new sheets using the Hot Press Compression Molding method, followed by tensile and bending tests. These values will be compared with the mechanical properties of virgin HDPE and simulated using ANSYS software to evaluate the cleat's resistance to tensile loads of 470 N, 600 N, and 730 N. Simulations show that the cleat can withstand loads of 470 N and 600 N, but fails plastically under a load of 730 N, with the stress exceeding its yield strength. The results of this study are expected to contribute to the development of more sustainable shipbuilding technology and encourage the development of other recycled products in the maritime industry.
Synthesis and Characterization of Biocompatible Facial Sheet Masks Utilizing Ginger Cellulose and Jicama Starch Nisazarifa, Adristi; Mardiyati, Yati; Steven, Steven
Jurnal Sains Materi Indonesia Vol. 27 No. 2 (2026): Jurnal Sains Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2026.13109

Abstract

Sheet masks are one of the most widely used beauty products to improve skin health. The increase in sheet mask usage leads to an increase in its waste, while some of the sheet masks contain synthetic fibers that are not biodegradable in the environment. Many researchers have been interested in innovating sheet masks by using natural polymer materials. Starch and cellulose were chosen because they are potentially environmentally friendly and biocompatible products. The solution casting method is used to produce sheet masks. Ginger cellulose and jicama starch were mixed, and the mass ratios of cellulose and starch are 100:0, 100:20, 100:40, 100:60, and 100:80. The addition of starch to cellulose tends to decrease the tensile strength and increase the percent elongation of the sample. The sample with a 100:0 ratio had the highest tensile strength at 34.75 MPa, while the highest percent elongation was achieved by the sample with a 100:40 ratio, measuring 4.80%. The absorption index of the sample to serum decreased with increasing starch composition. Samples with a mass ratio of cellulose to starch of 100:0, 100:20, and 100:40 exhibited better biodegradability than commercial sheet masks. Most of the samples undergo 100% biodegradation after 12 days of the biodegradation test. This research aims to develop a sheet mask made from ginger cellulose and jicama starch, which has flexible properties that allow it to conform to the shape of the face while also effectively absorbing serum or essence. This research can be used as an alternative for choosing sheet mask materials as a way to reduce plastic waste.
Co-Authors Abdillah, Hayy Nur Al Hazman, Muhammad Alwi Sina Khaqiqi Arninputranto, Wibowo Bachtiar Bachtiar Brian, Thomas Dika Anggara Eriek Wahyu Restu Widodo Fikry, Izzul Gastriani, Ovi Prina Hazman, Muhammad Al Ilham Khoirul Ibad Imam Khoirul Rohmat Imaniah Sriwijayasih Kurniyanto, Hendri Budi Kusminah, Imah Luluk Ma'ruf, Buana Mardiyati, Yati Mochammad Karim Al Amin Moh. Syaiful Amri Mustaghfirin, Muhammad Anis Mustain, Eko Nursyifaulkhair, Desrilia Parman Pratama Putra, Mochammad Yudha Aditya Priyambodo Nur Ardi Nugroho Pujiputra, Anggarjuna Puncak Putera, Erwien Yuliansyah Rahayuningsih, Siti Rosalina, Amanda RR. Ella Evrita Hestiandari Saputra, Muhammad Rizki Andika Sasongko, Kukilo Edy Sholikah, Evi Nafiatus Soelistijono, Rafi Febian Steven Steven Sukarno, Friska Intan Wibawa, I Putu Arta Wibowo, Alvalo Toto Wibowo, Sekarsari Widyastuti, Indri Ika Wuryaningrum, Nanda Dwi