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All Journal Multitek Indonesia : Jurnal Ilmiah Vocatech : Vocational Education and Technology Journal Jurnal Vokasi Journal of Welding Technology Jurnal Teknologi Jurnal Polimesin Jurnal Mesin Sains Terapan
Saifuddin Saifuddin
Politeknik Negeri Lhokseumawe
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Journal : Journal of Welding Technology

 1 
Analysis of the effect of current on tensile strength of aisi 1050 material in the SMAW welding process Aris Mauliza; Usman Usman; Saifuddin Saifuddin
Journal of Welding Technology Vol 4, No 1 (2022): June
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jowt.v4i1.2996

Abstract

Shield Metal Arc Welding (SMAW) which is also called Electric Arc Welding is a welding process that uses heat to melt the base material or base metal and electrodes (fill material). Meanwhile, at the processing stage, the appropriate current strength will be selected to the working position. The purpose of this study was to determine the effect of welding current on the mechanical strength of AISI 1050 medium carbon steel. The currents used were 100 A, 125 A and 150 A. After doing research, SMAW welding on AISI 1050 medium carbon steel with variations in current affects the value tensile strength, stress and strain that occur after welding. As the results obtained are for welding currents with a current of 150 A having the highest tensile strength of 74.36 kgf/mm2, while for a current of 100 A having a tensile strength of 72.94 kgf/mm2, while the lowest value is at a current of 125 A which has a tensile strength of 51.45 kgf/mm2. , while the strain that occurs at a current of 100 A is 10.13%, while at a current of 125 A the strain that occurs is 5.27%, and at a current of 150 A that is 9.92%
Analisa kekuatan sambungan kampuh V pengelasan carbon steel dengan stainless steel menggunakan elektroda E 309 terhadap kekuatan impact Rizam Alfahmi; Saifuddin Saifuddin; Mawardi Mawardi
Journal of Welding Technology Vol 3, No 2 (2021): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jowt.v3i2.2548

Abstract

Kekuatan sambungan las sangat penting pada proses hasil pengelasan. Sehingga semua parameter las harus benar-benar diperhatikan termasuk jenis kampuh dan elektroda yang digunakan. Proses las SMAW banyak digunakan di industri karena proses ini menghasilkan kualitas las yang baik, penyetelan mesin yang mudah dan berbiaya relative murah. Tujuan dari penelitian ini adalah untuk mengetahui kekuatan sambungan kampuh V pada pengelasan material yang berbeda yaitu carbon steel dengan stainless steel menggunakan elektroda E 309 terhadap kekuatan impact dengan melakukan variasi arus 80A dan 95A. Material yang digunakan adalah baja karbon AISI 1050 dengan baja tahan karat SUS 304. Metode yang digunakan adalah dengan melakukan pengelasan pada kedua material tersebut menggunakan arus 80 A dan 95 A, jenis elektroda yang digunakan adalah E309. Setelah pengelasan dilakukan pengujian impak untuk mengetahui kekuatan atau ketangguhan sambungan hasil pengelasan. Hasil pengujian menunjukkan material tanpa pengelasan atau material dasar diperoleh nilai impact 3,2 J/mm2. Spesimen pengelasan arus 80 A, diperoleh nilai rata-rata uji impact 3,44 J/mm2 dan pada spesimen pengelasan arus 95 A, diperoleh nilai rata-rata impact 3,54 J/mm2. Adanya perbedaan laju pada garis grafik berdasarkan perlakuan pengelasan diakibatkan besaran arus las yang berbeda akan berdampak terhadap ketahanan pukulan dan serepan energi pada material yang telah dilas dengan arus berbeda
Analisa pengaruh kuat arus hasil pengelasan GMAW terhadap kekerasan material ASTM A 36 Juwanda Juwanda; Saifuddin Saifuddin; Marzuki Marzuki
Journal of Welding Technology Vol 3, No 1 (2021): June
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jowt.v3i1.2027

Abstract

GMAW welding is a welding process that uses CO2 gas as a protective medium for weld metal from the influence of outside air. This welding uses a heat source from electrical energy which is converted or converted into heat energy. While ASTM A 36 steel plate is steel that has a carbon content of 0.30% so it is classified as low carbon steel. This steel is widely used in the market because it has many advantages, one of which has good welding properties (machinability), good wear resistance (wear) and good mechanical properties as well. This study aims to determine the hardness value of the welding results using the hardness test method in the GMAW welding process to ASTM A 36 steel with a 60ĚŠ V angle seam. The variations of the currents used in this welding process are 80,100 and 120 Amper. From the tests that have been done, it is known that the lowest hardness strength at current 80 produces a hardness value of 65.60 Hrc. Meanwhile, the highest hardness value at 100 Amper flow obtained a hardness value of 80.40 HRC
Co-Authors Akhyar Ibrahim Aris Mauliza Awalul Zikri AYADIL IQBAL Azwar Yunus Azwinur Azwinur Dahlul Arifin Furqan Muhammad Nur Indra Mawardi Jenne Syarif Juwanda Juwanda Luthfi Luthfi M Rizky Khairullah M. Yusuf M. Yusuf Marzuki Marzuki Mawardi Mawardi Mohd. Arskadius A Muhammad Sami Muhammad Yunus Nurdin Husin Nurlaili Nurlaili Razi Nainal Rizam Alfahmi Usman Usman Zaini Zaini