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All Journal JURNAL KAJIAN TEKNIK MESIN Journal of Industrial and Mechanical Engineering
Permata, Ariyo Nurachman Satiya
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Aerospace Engineering Automotive Engineering Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Rancang Bangun Coilgun Induksi Satu Tingkat Dengan Optimasi Dimensi Permata, Ariyo Nurachman Satiya
JURNAL KAJIAN TEKNIK MESIN Vol 10, No 1 (2025): Jurnal Kajian Teknik Mesin
Publisher : Universitas 17 Agustus 1945 Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52447/jktm.v10i1.8253

Abstract

Senjata api merupakan alat penting untuk mendukung berbagai operasi militer. Namun, suara keras dan residu kotor yang dihasilkan senjata api tradisional dapat menghambat efektivitas personel militer. Senjata modern alternatif, coilgun, salah satu solusi terhadap kelemahan ini. Senjata inovatif ini menggunakan energi listrik dan elektromagnet untuk mendorong proyektil tanpa mengeluarkan suara. Keunggulannya dalam hal pengurangan suara, efektivitas biaya, dan kebersihan menjadikannya ideal untuk operasi tempur perkotaan. Penelitian ini menggunakan simulasi Ansys Maxwell dan eksperimen. Penelitian menunjukkan medan magnet kumparan ditemukan berpusat pada titik tengah induktor kumparan, dengan efektivitas 5-20%.. Selain itu, kapasitas kapasitor berpengaruh langsung terhadap gaya kinetik yang dihasilkan oleh coilgun. Panjang induktor yang lebih pendek dengan belitan yang lebih banyak juga menghasilkan energi kinetik yang jauh lebih besar untuk coilgun. Hal ini menjanjikan kemajuan menarik dalam pengembangan teknologi militer inovatif.
The Effect of Welding Speed on the Physical and Mechanical Properties of Low Carbon Steel Welded Joints Using TIG Welding Using 2 External Magnetic Fields Paundra, Fajar; Prabowo, Andi; Sidik, M Farhan; Muhyi, Abdul; Pujiyulianto, Eko; Syanur, Farid Nanda; Permata, Ariyo Nurachman Satiya
Journal of Industrial and Mechanical Engineering Vol 2 No 1 (2024): Journal of Industrial and Mechanical Engineering
Publisher : Department of Industrial Engineering, Universitas Jenderal Soedirman.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jimien.2024.2.1.11873

Abstract

The use of external magnetic fields is very influential in TIG (Tungsten Inert Gas) welding because it can disrupt the stability of the electric arc formed between the tungsten electrode and the base metal. Magnetic fields can cause the arc to distort or shift, resulting in uneven and low quality welds. TIG (Tungsten Inert Gas) is a welding method that uses a non-melting tungsten electrode to produce a weld. This study aims to determine the effect of external magnetic field on the quality of TIG welding results. This research uses the TIG (Tungsten Inert Gas) welding process on low carbon steel material with speed variations of 4 mm/s, 6 mm/s, 8 mm/s and 10 mm/s and uses 2 Neodymium type external magnetic fields. Tests carried out on the results of welding joints are Vickers hardness test, micro & macro structure test. The highest hardness test value was obtained in the 4 mm/s welding speed variation using 2 external magnetic fields with a hardness value of 187.388 HVN. Microstructure testing shows that the base metal contains ferrite and pearlite structures. In the HAZ (Heat Affected Zone) area there are ferrite, pearlite and martensite structures. Macro structure testing shows several welding defects, including porosity, imperfect penetration, underfill and irregular surface. The use of two external magnetic fields can affect the results of TIG welding itself, such as deepening the penetration of welding so as to produce a good welding joint. Some things you should pay attention to if you don't want welding defects to occur are paying attention to the distance between the electric arc and the material, and the torch must be parallel to the welding line.
Co-Authors Muhyi, Abdul Paundra, Fajar Prabowo, Andi Pujiyulianto, Eko Sidik, M Farhan SYANUR, FARID NANDA