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All Journal Jurnal Inovator Jurnal Pengabdian Masyarakat dan Riset Pendidikan Komposit : Jurnal Pengabdian Dan Pemberdayaan Masyarakat INTAN CENDEKIA: JURNAL PENGABDIAN MASYARAKAT Jurnal Pengabdian Masyarakat (Jubdimas)
Bangun, Positron
Politeknik Negeri Medan
Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Public Health Social Sciences Other

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Alat-Alat Kerja Tukang Meja Kayu Memajukan Usaha Keluarga Di Padang Bulan Medan Siregar, Delisma; Sitanggang, Ernie SY; Bangun, Positron; Budianto, Gallio
JUBDIMAS ( Jurnal Pengabdian Masyarakat) Vol 1 No 1 (2022): Jurnal Pengabdian Masyarakat, Maret 2022
Publisher : Yayasan Cita Cendikiawan Al Kharizmi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/jubdimas.v1i1.18

Abstract

The current condition of the COVID-19 pandemic has made the economy mostly experience a setback, also experienced by partners, namely the Mulyadi family in Padang Buan, Medan City, not far from the Medan State Polytechnic. Mulayadi, who owns a grocery business selling basic necessities, was forced to close the business because of the declining number of buyers, including due to competition between the same businesses. Next the partners think what to do then turn around and start the table carpenter business. With conventional tools such as hand planers, hand saws, manual chisels and manual painting, partners make wooden tables, and sell them quickly to coffee shops in Padang Bulan around USU. With the help of his son, he tried to offer his wooden table through social media and it turned out that there was a request from the community. As demand from buyers increases, partners find it difficult to meet buyers and are constrained by increasing their business in making wooden tables because they require modern equipment such as electric planers, electric saws, electric drills, compressors, and painting gun units, and partners do not have the money to buy tools. the tool. This was conveyed to the Polmed lecturer to ask for help providing these tools. Then the implementation team carries out a survey, evaluating needs that can improve the work of partners, so that the implementation team of this service aims to help provide carpentry tools and provide training on the use of tools properly and safely. Then the service implementation team made a submission to Polmed through P3M and carried out a service program by handing over tools or machines in the form of 2 electric planers, 1 electric saw, 1 electric drill, compressor and painting gun unit. At the time of delivery, partners said that with manual equipment made of wooden tables as many as 1-2 tables per week, then with the availability of tools provided by Polmed through the chief executive, they could make 4-5 tables per week with more aesthetic ones, and therefore partners' opinions became increase.
Workshop Pengenalan Cacat Las Standar Internasional di LPK Immanuel Provinsi Sumatera Utara Sebayang, Alexander; Tarigan, Efrata; Tarigan, Liwat; Tarigan, Piktor; Bangun, Positron
INTAN CENDEKIA (Jurnal Pengabdian Masyarakat) Vol 4, No 1 (2023): INTAN CENDEKIA: JURNAL PENGABDIAN MASYARAKAT
Publisher : Yayasan Pendidikan Intan Cendekia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47165/intancendekia.v4i1.641

Abstract

The Department of Mechanical Engineering of the Medan State Polytechnic (POLMED) has international standard welding practice and laboratory equipment. In line with the progress of this equipment, quite a number of teaching staff in this study program already have teaching certificates in the field of welding. The socialization of welding in this study program has received recognition from the Professional Institute International Welding (IIW) and The Welding Institute (TWI), so that the Mechanical Engineering Department has become a Competency Test Site (TUK) for IIW and TWI international certification. The proponent of this international standard welding defect recognition training program already has a CSWIP (Certificate Scheme Welding Inspection Personnel) 3.0 certificate from The Welding Institute. LPK IMMANUEL MEDAN has a Welding course training field, this is related to making vehicle frames (chassis body). Participants who take part in this program have good achievements and are prepared to enter the world of work after being declared graduated with proof of a certificate. It is very reasonable for LPK IMMANUEL MEDAN to accept the offer of an international standard welding defect identification training program held by a lecturer from the Department of Mechanical Engineering, Medan State Polytechnic (POLMED). especially to hold welding inspection socialization based on TWI standards. This knowledge will prepare prospective LPK Immanuel graduates to enter jobs in the welding field. This program is very relevant to the adult world of work. With this training, LPK participants will gain insight into how welding results meet the TWI standard, which is a standard that is widely used in the international world. This is supported by experienced and certified lecturers who carry out the service above in the CSWIP 3.0 (welding inspector) training in the use of the welding gauge which will be donated to the LPK Immanuel. Through this program, welding inspection modules and welding gauges have also been donated so that LPK participants can use them in the future
Mesin Mixer Pakan Ternak Domba Bagi Peternak Domba Di Dusun VI Desa Sei Glugur Kecamatan Pancur Batu Kabupaten Deli Serdang Provinsi Sumatera Utara Sormin, Syariful Hikmah; Bangun, Positron; Pinem, Mhd Daud; Panjaitan, Berman; Lumbantoruan, Heddy; Manurung, Nelson
Jurnal Pengabdian dan Pemberdayaan Masyarakat Vol. 3 No. 1 (2025): Edisi Juni
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51510/komposit.v3i1.2017

Abstract

Kegiatan ini bertujuan untuk merancang dan membuat mesin pencampur (mixer) pakan ternak domba yang akan difermentasi bagi peternak domba di Dusun VI, Desa Sei Glugur, Kecamatan Pancur Batu Kabupaten Deli Serdang, Provinsi Sumatera Utara. Kegiatan diawali dengan melakukan observasi di Dusun VI, Desa Sei Glugur, Kecamatan Pancur Batu Kabupaten Deli Serdang yang dituju. Observasi ini bertujuan untuk mendapatkan gambaran atau kendala yang dihadapi oleh peternak. Dari hasil observasi kemudian dilakukan rekayasa perancangan mesin sesuai kebutuhan. Sebagai salah satu alternatif untuk meningkatkan produktifitas dan efisiensi dalam usaha pembuatan pakan ternak fermentasi untuk domba khususnya untuk proses pencampuran bahan baku, maka direncanakan untuk rancang bangun mesin pencampur bahan-bahan baku pakan ternak kapasitas 300kg/jam. Dengan harapan dapat membantu usaha pembuatan pakan ternak untuk memberikan solusi dalam memaksimalkan pencampuran pakan ternak dengan kapasitas yang lebih banyak dengan waktu yang lebih singkat.
Analisis Emisi Gas Buang dengan Memvariasikan Tekanan Nozzel Kenderaan Roda Empat 2300cc : Penelitian Positron Bangun
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 4 No. 1 (2025): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 4 Nomor 1 (Juli 2025 -
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v4i1.2254

Abstract

This study aims to analyze exhaust gas emissions by varying nozzle pressure and engine speed using a 2300 cc engine stand with diesel fuel. Exhaust emissions were measured with an engine smoke tester at engine speeds of 1000 rpm, 2000 rpm, and 3000 rpm, combined with nozzle pressures of 130 kg/cm², 140 kg/cm², and 150 kg/cm². The collected data were tabulated and analyzed using Microsoft Excel. The results show that variations in nozzle pressure and engine speed affect exhaust emissions. The lowest HC emission value (ppm) occurred at a nozzle pressure of 130 kg/cm² and 1000 rpm, while the lowest CO emission value (%) was recorded at a nozzle pressure of 140 kg/cm² and 3000 rpm.
The Uji Kekuatan Tarik Komposit Epoksi Diperkuat Serat Daun Nanas (Ananas comosus) Berdasarkan Variasi Fraksi Volume Serat Boangmanalu, Eka Putra Dairi; Saragi, Jandri Fan HT; Pratama, Angga Bahri; Sahat, Sahat; Bangun, Positron
Jurnal INOVATOR Vol. 8 No. 2 (2025): Jurnal INOVATOR-On Progress
Publisher : LPPM Politeknik Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37338/inovator.v8i2.507

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh variasi fraksi volume serat daun nanas (10%, 20%, 30%, 40%, dan 50%) terhadap sifat tarik komposit berbasis resin epoksi. Serat daun nanas terlebih dahulu diberi perlakuan alkali menggunakan larutan NaOH 5% untuk meningkatkan kekasaran permukaan dan adhesi dengan matriks. Proses pembuatan spesimen dilakukan dengan metode hand lay-up, dan pengujian tarik mengacu pada standar ASTM D638. Hasil penelitian menunjukkan bahwa peningkatan fraksi volume serat hingga 30% menghasilkan kekuatan tarik maksimum sebesar 49,3 MPa. Nilai modulus Young juga meningkat hingga fraksi tersebut, kemudian menurun pada komposisi serat yang lebih tinggi akibat terbentuknya void dan aglomerasi serat.
Co-Authors Alexander Sebayang Angga Bahri Pratama Berman Panjaitan Boangmanalu, Eka Putra Dairi Gallio Budianto - Lumbantoruan, Heddy Mhd Daud Pinem Nelson Manurung, Nelson Sahat Sahat Saragi, Jandri Fan HT Siregar, DELisma Sitanggang, Ernie SY Sormin, Syariful Hikmah Tarigan, Efrata Tarigan, Liwat Tarigan, Piktor