scholarly journals PENGARUH ARUS PENGELASAN TERHADAP KEKUATAN PADA PROSES LAS SMAW MENGGUNAKAN ELEKTRODA TYPE E6013

2019 ◽  
Vol 9 (2) ◽  
pp. 378
Author(s):  
Pardi Pardi
Keyword(s):  
Mild Steel ◽  
Arc Welding ◽  
Butt Joint ◽  
Visual Test ◽  
Metal Arc Welding

Salah satu proses pengelasan yang banyak digunakan dalam kontruksi baja adalah proses SMAW (Shield metal arc welding). Salah satu komponen penentu kualitas sambungan proses ini adalah jenis elektoda. Sementara itu elektroda yang beredar dipasaran biasanya produsen merekomendasikan penggunaan arusnya dalam rentang amper tertentu, sehingga hal tersebut sering membuat welder yang tidak memiliki WPS kesulitan untuk memilih arus yang optimal. Dalam penelitian ini membahas tentang pengaruh besarnya arus pengelasan terhadap kekuatan las SMAW menggunakan Elektroda E6013. Pengelasan dilakukan menggunakan material mild steel ketebalan 8 mm dengan proses pengelasan SMAW tipe mesin las DC dengan variasi arus 50A, 60A, 70A, 80A dan 90A.  Jenis sambungan butt joint single V groove, dengan metode pengujian hasil lasan menggunakan visual test. Spesimen dilakukan uji bending untuk melihat hasil kekuatan sambungan las. Berdasarkan hasil pengujian pada jenis elektroda A didapat kekuatan uji bending tertinggi dengan nilai beban patah 12969,31N dilas menggunakan besar arus 90A. Sedangkan pada jenis elektroda B dengan didapat uji bending tertinggi dengan nilai beban patah 23398.83N dilas dengan arus 90A. 

scholarly journals Inhalation of iron-abundant gas metal arc welding-mild steel fume promotes lung tumors in mice

Toxicology ◽  
2018 ◽  
Vol 409 ◽  
pp. 24-32 ◽  
Author(s):  
L.M. Falcone ◽  
A. Erdely ◽  
V. Kodali ◽  
R. Salmen ◽  
L.A. Battelli ◽  
...  
Keyword(s):  
Mild Steel ◽  
Arc Welding ◽  
Gas Metal Arc Welding ◽  
Lung Tumors ◽  
Metal Arc Welding

scholarly journals Magnetic Field Effects on 4G Positions in Shielded Metal Arc Welding Process

2020 ◽  
Vol 9 (3) ◽  
pp. 694-703 ◽  
Keyword(s):  
Magnetic Field ◽  
Arc Welding ◽  
Molten Pool ◽  
Low Carbon Steel ◽  
Welding Process ◽  
Butt Joint ◽  
Low Carbon ◽  
Magnetic Field Effects ◽  
Shielded Metal Arc Welding ◽  
Metal Arc Welding

With the advancement of welding techniques, Arc-welding is one of the most commonly and widely used welding technique for variety of purposes. The underside of welding to be performed makes the molten pool going downward because of gravity vector pulling affects the molten pool. The main purpose of this study is to study how the molten of electrode produced reduce on going downward and produce a good root fusion in overhead position of welding in single V-butt joint with the help of magnetic field on the workpiece. The study of magnet characteristic which includes thebehaviour of molten pool toward magnetic field, the macrostructure and microstructure and its strength should be carried out. Each magnet strength has their own characteristics that affects toward weldment on base metal.As a result, it can be concluded that having a magnetic field applies on base metal A36 low carbon steel may reduce the molten pool from going downward. The selection of a correct magnet strength and welding process may produce good and quality weldment especially in terms of its weld properties and geometry.

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