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All Journal JURNAL PENDIDIKAN TAMBUSAI International Journal of Engineering, Science and Information Technology International Journal of Research in Vocational Studies (IJRVOCAS) Sinergi Polmed : Jurnal Ilmiah Teknik Mesin INTAN CENDEKIA: JURNAL PENGABDIAN MASYARAKAT
Tarigan, Efrata
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Tensile Strength of S45C Steel Material for SMAW Welding with Various Cooling Media Sebayang, Alexander; Tarigan, Efrata; Tarigan, Liwat; Ginting, Berta; Irianto, Achmad
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 3 No. 4 (2024): IJRVOCAS - Special Issues - International Conference on Science, Technology and
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v3i4.1

Abstract

One of the welding methods that is widely used is the SMAW welding process (Shield Metal Arc Welding) which is also called Electric Arc Welding. This research aims to analyze the effect of variations in cooling media on tensile test results on welding results of S45C steel material. This research uses S45C material. The material is subjected to single vee joint welding, where at the completion of welding the material is immersed in a cooling medium of oil, water, air and is not treated in this research. From the research results, it can be concluded that the highest ultimate tensile strength (Tu) value is when the material is cooled with oil media, where the highest value is 517.15 N/mm2, followed by air cooling media, where the highest value is amounted to 475.85 N/mm2, and the lowest was with water cooling media where the highest value was 455.50 N/mm2. Thus, cooling with oil as a medium is the best between the two cooling media, water and air.
Analisa Perbandingan Kekuatan Tarik Material Baja Hardox Steel 450 dengan Mild Steel pada Pengelasan SMAW Tarigan, Efrata; Sebayang, Alexander; Tarigan, Liwat; Hassan, Faisal Fahmi; Anasril, Anasril
Jurnal Pendidikan Tambusai Vol. 7 No. 2 (2023): Agustus 2023
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v7i2.6265

Abstract

Pengelasan juga dapat diartikan sebagai proses penyatuan logam yang terjadi akibat adanya panas baik ada atau tidaknya pengaruh tekanan DIN (Deutsche Industrie Normen). Tujuan penelitian ini adalah untuk mengetahui manakah yang lebih baik material hardox steel 450 dibandingkan dengan mild steel dalam hal uji tarik tegangan yield (ty) N/mm2 dan tegangan ultimate (tu) N/mm2 pada pengelasan SMAW. Metode penetian yang digunakan adalah metode eksprimen, dengan masing material diuji 5 spesimen. Hasil penelitan menunjukkan bahwa Tegangan Yield (ty) N/mm2 nilainya lebih besar pada setiap sample hardox steel 450 adalah 519,92 N/mm2, 512,23 N/mm2, 513,45 N/mm2, 512.45 N/mm2, dan 512,33 N/mm2, dibandingkan dengan mild steel hanya 387,09 N/mm2 385,11 N/m2, 392,22 N/mm2, 388,32 N/mm2, dan 389,65 N/mm2. Begitu juga dengan tegangan ultimate (tu) N/mm2 material hardox steel 450 lebih besar nilainya 613,55 N/mm2, 615,43 N/mm2, 613,46 N/mm2, 612,45 N/mm2, dan 612,33 N/mm2, lebih besar dibandingkan dengan mild steel dengan nilai 415,09 N/mm2, 425,15 N/mm2, 412,52 N/mm2, 418,32 N/mm2, dan 419,65 N/mm2. Hal ini dikarenakan material hardox 450 jauh lebih kuat dibandingkan dengan mild steel, hardox steel memiliki proses quenching dan tempering yang dikontrol dengan hati-hati di pabrik baja, selain itu material hardox dikeraskan secara menyeluruh. Kekerasan inti minimum adalah 90 % dari kekerasan permukaan minimum yang dijamin.
PERFORMANSI VIBRASI POMPA PADA STEAM CONDENSATE PUMP (G-2707) Suhesti; Agustini, Aulia Rahayu; Tarigan, Efrata
SINERGI POLMED: Jurnal Ilmiah Teknik Mesin Vol. 5 No. 1 (2024): Edisi Februari
Publisher : Politeknik Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51510/sinergipolmed.v5i1.1496

Abstract

PT Pertamina Hulu Energi North Sumatera Offshore (NSO) Lhokseumawe yang bergerak di bidang minyak, gas bumi, dan energi lainnya merupakan bukti keberhasilan teknologi pengolahan gas alam. Industri ini menggunakan peralatan industri seperti pompa. Perawatan memiliki peran penting untuk tercapainya performansi kinerja peralatan yang optimal, salah satunya adalah pemeriksaan vibrasi secara rutin. Teknik pengumpulan data dilakukan berdasarkan data-data yang diperlukan untuk menganalisis getaran pada pompa. Kegiatan tersebut berupa studi literatur yang mempelajari jurnal dan buku-buku sebagai referensi dalam pemahaman mengenai getaran pada pompa. Pengumpulan data didapat dari hasil pemeriksaan getaran pada pompa di unit 27 Sulphur Recovery Unit (SRU). Tingkat vibrasi yang tinggi dapat menyebabkan kerusakan pada komponen pompa, mengurangi efisiensi, bahkan kegagalan pada pompa. Pemeriksaan vibrasi penting dilakukan secara rutin untuk menjaga performansi pompa. Setelah dilakukan pemeriksaan vibrasi didapat nilai vibrasi pada 2,21 mm/s yang menunjukkan kondisi good pada Vibration ISO 10816 dan berarti pompa masih aman untuk beroperasi.
ANALISIS PROTOTYPE TURBIN PELTON DENGAN VARIASI OPERASIONAL DI LABORATORIUM PENGUJIAN MESIN UNIVERSITAS DARMA AGUNG Tarigan, Kristian; Pardede, Saut Parsaoran; Rasta; Sholeha, Dewi; Tarigan, Efrata
SINERGI POLMED: Jurnal Ilmiah Teknik Mesin Vol. 5 No. 1 (2024): Edisi Februari
Publisher : Politeknik Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51510/sinergipolmed.v5i1.1545

Abstract

Salah satu pilihan untuk memanfaatkan sumber energi saat ini adalah pembangkit listrik tenaga air. Ini adalah salah satu jenis pembangkit listrik tenaga mikrohidro (PLTMH) terbaik yang dapat dikembangkan di lingkungan alam Indonesia karena kebutuhan energi yang terus meningkat. Turbin pelton adalah salah satu jenis turbin air yang paling umum digunakan. Banyak faktor memengaruhi kinerja turbin pelton. Ketinggian (kepala), kecepatan aliran, sudut sudu, jumlah nozzle, kecepatan aliran, dan jumlah sudu adalah semua bagian dari ini. Ketersediaan fasilitas yang diperlukan untuk proses pembelajaran di perkuliahan sangat penting dalam konteks pendidikan. Untuk membandingkan hasil uji dengan hasil teori, diperlukan alat peraga Turbin Pelton Prototype. Di Laboratorium Pengujian Mesin Universitas Darma Agung, fungsi komponen prototipe Turbin Pelton harus diperbaiki dan dioptimumkan. Selanjutnya, variasi pengoperasian (ukuran diameter bukaan nozzle) dan kecepatan aliran yang berbeda selama pengujian memengaruhi daya dan efisiensi kerja turbin.
Comparative Analysis of Compressive Strength of Steel Tubing Pipe Welding Results Using SMAW and MIG Welding with 140A Current Prasetia, Tengku Geby; Ariyon, Muhammad; Fitriani, Fitriani; Sebayang, Alexander; Tarigan, Efrata
International Journal of Engineering, Science and Information Technology Vol 5, No 1 (2025)
Publisher : Malikussaleh University, Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v5i1.644

Abstract

The welding process plays a crucial role in manufacturing and is inseparable from its advancement. Deutsche Industrie Norman (DIN) defines welding as creating a metallurgical bond at the joint of metal or alloy metals in their molten state. This process is essential for constructing strong, durable materials like plates, steel, and pipes. Bending tests, including face bend and root bend, are often conducted to evaluate the quality of welded joints. These tests assess welded materials’ toughness, strength, and resistance under specific loading conditions. This study employed two welding techniques: Gas Metal Arc Welding (GMAW) and Shielded Metal Arc Welding (SMAW). GMAW, called Metal Inert Gas (MIG) welding, uses argon or helium as protective gases and a continuously fed electrode wire. On the other hand, SMAW relies on flux-coated electrodes to create the weld seam, with molten metal from both the electrode and parent material filling the joint. The results revealed distinct advantages for each method. The highest bending test value for the root bend was achieved with MIG welding at 982,55 Kgf/mm², demonstrating its effectiveness in creating durable root joints. Conversely, SMAW exhibited superior performance in face bend tests, achieving a bending strength of 104111 Kgf/mm², making it ideal for surface-level joint applications. Both techniques displayed no visible cracks in their welds, ensuring compliance with industry standards and confirming their reliability for various manufacturing needs. These findings highlight the importance of selecting appropriate welding methods based on specific application requirements.
Comparative Analysis of Tensile Strength of Steel Tubing Pipe Welding Results Using SMAW and MIG Welding with 140A Current Tri Aulia, Yuni; Ariyon, Muhammad; Fitriani, Fitriani; Sebayang, Alexander; Tarigan, Efrata
International Journal of Engineering, Science and Information Technology Vol 5, No 1 (2025)
Publisher : Malikussaleh University, Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v5i1.645

Abstract

Welding is a crucial technology in modern manufacturing processes, widely applied in automotive, oil refineries, and other industries. This study focuses on two standard welding techniques: Gas Metal Arc Welding (GMAW) and Shielded Metal Arc Welding (SMAW). GMAW uses argon gas as a shielding gas, and the ER70S-6 electrode has a 1.0 mm diameter, while SMAW employs the E7018 electrode with a 2.6 mm diameter. Both methods are tested on ASTM 106 Grade B steel, a commonly used material in various industries. The primary goal of this research is to evaluate the tensile strength of steel specimens welded using MIG and SMAW. The tensile strength of raw material, as well as the welded materials, is measured to assess the quality of the welds. The results show that the tensile strength of the raw material is 648.26 kgf/mm². After welding, the tensile strength for the MIG-welded material is 540.79 kgf/mm², while the SMAW-welded material achieves a higher tensile strength of 616.17 kgf/mm². These values highlight the significant difference in performance between the two welding techniques. SMAW welding provides the best joint quality among the two methods, with a tensile strength value of 616.17 kgf/mm². This study underscores the importance of selecting the appropriate welding technique based on the desired strength and application, with SMAW proving superior for this particular material. These findings contribute valuable insights into material technology and welding, offering a reference for future industrial applications.
Study of the Effect of Post Weld Heat Treatment on the Bending Strength of Weld Joints in SMAW and GMAW Methods in Root Bend Areas and Face Bend on ASTM A106 Grade B Paskel, M. Piere Sam; Ariyon, Muhammad; Fitrianti, Fitrianti; Herawati, Ira; Sebayang, Alexander; Tarigan, Efrata; Idhamkamil, Idhamkamil; Tarigan, Liwat
International Journal of Engineering, Science and Information Technology Vol 5, No 2 (2025)
Publisher : Malikussaleh University, Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v5i2.850

Abstract

This study evaluates the effect of Post Weld Heat Treatment (PWHT) on the bending strength of raw materials and welding joints using SMAW and GMAW welding methods. Tests were conducted on root and face bends to compare bending strength before and after PWHT treatment. The test results show that in the root bend area, the base material without PWHT has a bending strength of 3983.16 MPa, while in SMAW and GMAW welding, the bending strength is 3788.39 MPa and 2695.96 MPa, respectively. After PWHT was applied, the bending strength of the base material increased to 4739.76 MPa, while that of SMAW and GMAW welding increased to 4131.62 MPa and 5193.39 MPa, respectively. In the face bend area, the base material without PWHT showed a bending strength of 3077.70 MPa, with SMAW and GMAW welding producing bending strengths of 2654.28 MPa and 2259.32 MPa, respectively. After PWHT, the bending strength of the base material increased to 3289.05 MPa, while SMAW and GMAW welding recorded 2641.47 MPa and 3498.07 MPa, respectively. This study's results indicate that PWHT significantly improves bending strength, especially in the base material and weld joints in the root bend area.
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
Co-Authors Agustini, Aulia Rahayu Alexander Sebayang anasril, anasril Bangun, Positron Fitriani Fitriani Fitrianti Fitrianti, Fitrianti Ginting, Berta Hassan, Faisal Fahmi Idhamkamil, Idhamkamil Ira Herawati, Ira Irianto, Achmad Muhammad Ariyon PARDEDE, SAUT PARSAORAN Paskel, M. Piere Sam Prasetia, Tengku Geby Rasta Sholeha, Dewi Suhesti TARIGAN, KRISTIAN Tarigan, Liwat Tarigan, Piktor Tri Aulia, Yuni