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All Journal Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vocatech : Vocational Education and Technology Journal Jurnal Vokasi Journal of Welding Technology Malikussaleh Journal of Mechanical Science Technology Jurnal Polimesin Jurnal Mesin Sains Terapan
Samsul Bahri
Jurusan Teknik Mesin Politeknik Negeri Lhokseumawe
Aerospace Engineering Automotive Engineering 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 
The effect of weld groove variations on the toughness of welding joints of AISI 1050 material Zulkiffli Purba; Samsul Bahri; Jenne Syarif
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.v4i1.2998

Abstract

SMAW (Shielded Metal Arc Welding) welding is a metal joining process that uses heat energy to melt the workpiece and electrode (fill material). The flux material used for type E7016, a low hydrogen electrode wire typically used for welding heavy-duty plates and structures. Its use is for welding medium carbon steel, bridges, ships and machinery. The result of welding electrode E7016 is very smooth, deep penetration, crack resistant, ductile, good weld appearance and stable arc, the material used in the SMAW welding process is AISI 1050 steel. While AISI 1050 steel is steel that has a carbon content of 0.50 % so that it is classified as medium carbon steel. This steel is widely used in the market because it has many advantages, one of which is as an automotive component. This steel has the characteristics of good machinability, good wear resistance and medium mechanical properties. This study aims to determine the shock strength (impact) and the difference in the time of making weld grooves on SMAW welding results on AISI 1050 steel with variations of Double Bevel and Double V Groove grooves. In testing in the Weld Metal area with a current used of 110 Ampere. From the tests that have been carried out, it is known that the value of the highest impact strength is in the Double Bevel groove which has a value of 1.91 Joule/mm2, for the manufacture of welded grooves where the Double Bevel time is shorter than Double V Groove, so the time produced by Double Bevel which is 3.44 minutes/second.
Analisa ketangguhan dan kekerasan pada pengelasan GTAW pelat baja AISI 1050 terhadap pengaruh sudut keruncingan elektroda tungsten Zulfiadi Zulfiadi; Samsul Bahri; Nurlaili Nurlaili
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.v3i2.2523

Abstract

Pengelasan adalah GTAW (Gas Tungsten Arc Welding) merupakan teknik pengelasan dengan menggunakan Argon sebagai gas pelindung, serta nyala busur listrik yang berasal dari elektroda Tungsten dengan benda kerja. Ada beberapa faktor yang mempengaruhi sifat fisik dan mekanik suatu bahan setelah proses pengelasan. Pada penelitian ini, berfokus pada pengaruh variasi sudut keruncingan elektroda tungsten terhadap ketangguhan, kekerasan dan struktur makro baja AISI 1050. Proses las dilakukan dengan memvariasikan sudut keruncingan elektroda tungsten (Ewth-2) 150, 300, 600 dan 900 dengan arus pengelasan 120 A dengan menggunakan filler AWS A5. 18 ER70S-G pada pelat dengan ketebalan 10 mm. Berdasarkan hasil struktur makro didapati bahwa semakin kecil sudut keruncingan elektroda tungsten yang digunakan menghasilkan  lebar lasan semakin melebar. Nilai impak tertinggi adalah sebesar 3,71 Joule/mm2 dengan sudut keruncingan elektroda tungsten 15 derajat, dan menunjukkan bahwa semakin kecil sudut keruncingan elektroda tungsten maka semakin besar harga nilai impak yang diperoleh. Sedangkan untuk hasil uji kekerasan didapatkan nilai kekerasan tertinggi 48,60 HRC pada bagian HAZ dengan sudut keruncingan elektroda tungsten 60 derajat, dan cenderung sama untuk semua sudut keruncingan elektroda tungsten.
Co-Authors Adi Saputra Ismy Alwi Jufri Amalia, Ismi Ariefin Ariefin Bukhari Bukhari EDI SAPUTRA Edi Saputra Edi Saputra Fakhriza, Fakhriza Hamdani, Hamdani Hendra Saputra indra Mawardi Irwin Syahri Cebro Jannifar, A Jenne Syarif Luthfi Luthfi Nurlaili Nurlaili Rizki Amanda Syahputra, Duha Aota Syamsuar Syamsuar, Syamsuar Syarif, Jenne Tajuddin Tajuddin Turmizi Turmizi Turmizi, Turmizi Usman Usman Zuhaimi Zuhaimi Zulfiadi Zulfiadi Zulkiffli Purba