Nely Ana Mufarida
Prodi Teknik Mesin, Universitas Muhammadiyah Jember

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Pengaruh Cairan Pendingin Terhadap Kekuatan Tarik dan Bending Pengelasan SMAW Baja SS400 Moch. Arif Wibowo; Nely Ana Mufarida; Kosjoko Kosjoko
Jurnal Teknik Mesin Vol 17 No 1 (2024): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.17.1.1321

Abstract

The welding process is widely used for joining in machine construction and steel construction. One popular welding method today is SMAW. SMAW welding is effective and practical because it only requires simple tools and electrodes in its use. According to research before, the higher the viscosity value of the coolant used, the higher the tensile strength produced by using various coolants such as aloe vera gel, banana stem extract, and water. Therefore, this research aims to use readily available coolants, especially in the production workshop environment. The purpose of this study is to determine the effect of different welding currents on the cooling liquid on the welding results of SS400 steel material. In this research, the creation and testing of specimens were conducted in several places. The creation of specimens was carried out at the Mechanical Engineering Laboratory of Muhammadiyah University of Jember, the welding process of the specimens was conducted at the Job Training Center (BLK) Situbondo, and the tensile and bending tests were conducted at the Material Testing Laboratory of the Mechanical Engineering Department at Malang State Polytechnic. This study uses SMAW welding with an E6013 Ø2.6mm electrode and SS400 steel material. After welding, the specimens were immersed in cooling liquids, namely 10% dromus, radiator coolant, and SAE 40 oil. The results of the research on the SMAW welding process for SS400 steel showed that immersion using SAE 40 oil produced the highest tensile strength at both 80A and 90A currents, which were 28.79 kg/mm² and 28.22 kg/mm², respectively. Meanwhile, the bending test results showed two different outcomes: at 80A current, immersion welding using radiator coolant produced the highest bending strength at 1067.77 kgf/mm², whereas at 90A current, immersion welding using dromus produced the highest bending strength at 1130.22 kgf/mm².
STRATEGI PENGEMBANGAN BUDIDAYA IKAN LELE MELALUI USAHA ANEKA OLEH-OLEH KHAS OLAHAN IKAN LELE SIAP SAJI SEBAGAI BRAND KEUNIKAN Pawestri Winahyu; Nely Ana Mufarida; Reni Umilasari
JMM (Jurnal Masyarakat Mandiri) Vol 9, No 4 (2025): Agustus
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v9i4.32218

Abstract

Abstrak: Desa Cakru memiliki potensi besar dalam perikanan air tawar, namun belum dimanfaatkan secara maksimal. Belum adanya produk olahan khas yang bernilai jual tinggi menjadi kendala utama, ditambah keterbatasan keterampilan teknis masyarakat dalam budidaya ikan lele dan pengolahan produk. Selain itu, pemanfaatan teknologi sederhana belum optimal. Program pengabdian ini bertujuan meningkatkan kapasitas masyarakat dalam budidaya ikan lele dan inovasi produk frozen food, sebagai upaya pemberdayaan ekonomi melalui branding oleh-oleh khas daerah. Kegiatan ini menitikberatkan pada peningkatan hardskill dalam teknik budidaya ikan lele dan pengolahan frozen food, serta softskill dalam kewirausahaan, manajemen usaha kecil, dan strategi branding agar produk lokal mampu bersaing di pasar. Metode pelaksanaan mencakup sosialisasi, pelatihan teknis, penerapan teknologi tepat guna, pendampingan intensif, serta evaluasi menggunakan observasi, angket, dan pretest serta posttest berbasis 15 soal pilihan ganda. Kegiatan melibatkan terdiri dari 15 pembudidaya pemula dan 10 pelaku usaha mikro yang berpotensi mengembangkan produk olahan berbasis ikan lele. Hasil menunjukkan peningkatan hardskill sebesar 61% dan softskill 58%, serta peningkatan pendapatan keluarga sebesar 20–30% dari pemasaran produk frozen food.Abstract: Cakru Village has great potential in freshwater fisheries, but has not been utilized optimally. The absence of typical processed products with high selling value is the main obstacle, coupled with the limited technical skills of the community in catfish cultivation and product processing. In addition, the use of simple technology has not been optimal. This community service program aims to increase community capacity in catfish cultivation and frozen food product innovation, as an effort to empower the economy through branding regional souvenirs. This activity focuses on improving hard skills in catfish cultivation techniques and frozen food processing, as well as soft skills in entrepreneurship, small business management, and branding strategies so that local products can compete in the market. The implementation method includes socialization, technical training, application of appropriate technology, intensive assistance, and evaluation using observation, questionnaires, and pre-tests and post-tests based on 15 multiple-choice questions. The activity involved 15 novice cultivators and 10 micro-entrepreneurs who have the potential to develop processed products based on catfish. The results showed an increase in hard skills of 61% and soft skills of 58%, as well as an increase in family income of 20-30% from marketing frozen food products.