scholarly journals Analisis Kekuatan Mekanis A304 menggunakan Logam Pengisi E308 pada Pengelasan GTAW dengan Variasi Parameter

2021 ◽  
Vol 43 (1) ◽  
pp. 17
Author(s):  
Apang Djafar Shiedieque ◽  
Amri Abdulah ◽  
Dede Ardi Rajab ◽  
Jefri Jafarudin
Keyword(s):  
Arc Welding ◽  
Welding Current ◽  
Gas Tungsten Arc Welding ◽  
Bending Test ◽  
Welding Parameters ◽  
Test Results ◽  
Butt Welds ◽  
Gas Tungsten Arc ◽  
Gas Tungsten ◽  
A Current

AbstrakTeknologi pengelasan adalah metode penyambungan material yang umum digunakan di industri, konstruksi, dan manufaktur. Makalah ini membahas Gas Tungsten Arc Welding (GTAW) menggunakan logam pengisi ER308 untuk menyambung logam dasar A304. Penelitian ini bertujuan untuk menguji kekuatan tarik dan  lentur dari bahan dengan variasi tipe v-groove dan arus pengelasan sebagai parameter pengelasan. Jenis sambungan yaitu butt-welds dengan 45° v-groove, 60° v-groove, dan 60 ° double v-grooves, sedangkan arus pengelasan bervariasi antara 75A, 100A dan 125A. Uji kuat tarik menggunakan HUNG TA-520 dengan kapasitas mesin 500 kN. Hasil kekuatan puncak masing-masing capaian berada pada 645,70 N / mm2, 633,16 N / mm2, dan 613,89 N / mm2. Kemudian pada hasil uji tekuk retakan terbesar pada sampel terjadi pada arus 75A. Dari hasil ini lebih baik menggunakan arus 100A. AbstractWelding technology is a method of joining materials commonly used in industry, construction, and manufacturing. This paper discusses Gas Tungsten Arc Welding (GTAW) using ER308 filler metal to join the A304 base metal. This study aims to examine the strength and bending test of the variation of the v-groove type and welding current as welding parameters. Types of joints are butt-welds with 45 ° v-grooves, 60 ° v-grooves, and 60 ° double v-grooves, while the welding current varies between 75A, 100A, and 125A. Tensile strength test using HUNG TA-520 with an engine capacity of 500 kN. The peak strength results of each achievement are at 645.70 N / mm2, 633.16 N / mm2, and 613.89 N / mm2. Then the bending test results, the largest cracks in the sample, occurred at a current of 75A. From these results it is better to use a current of 100A.

Experiment Design with Full Factorial in Gas Tungsten Arc Welding Parameters on Aluminium Alloy 5083

2013 ◽  
Vol 711 ◽  
pp. 183-187 ◽  
Author(s):  
Prachya Peasura
Keyword(s):  
Arc Welding ◽  
Parent Phase ◽  
Welding Current ◽  
Alternating Current ◽  
Gas Tungsten Arc Welding ◽  
Welding Parameters ◽  
Current Electrode ◽  
Gas Tungsten Arc ◽  
Gas Tungsten ◽  
Full Factorial

This research was to study of gas tungsten arc welding (GTAW) welding parameters that affects to the mechanical properties of aluminum alloy AA5083 welding with GTAW. The full factorial design was experiment. The factors was study in type of polarity on alternating current (AC), direct current electrode negative (DCEN) and direct current electrode positive (DCEP), levels of welding current for 180,200,220 and 240 amp. The specimen to analyses the physical properties has microstructure and hardness of weld metal and heat affected zone. The result showed that type of welding current and levels of welding current interaction hardness at the level of confidence 95% (P-value<0.05). The factor hardness maximum of weld metal was alternating current at level of current 240 amp. and hardness of 136.53 HV. The factor hardness maximum of HAZ value was alternating current at level of welding 220 amp. and hardness of 169.43 HV. The welding parameters can result in increasing Mg2Si intensity in parent phase. It can also be observed that Mg2Si at the parent phase decreased due to high welding current in HAZ.This research can be used as information in choosing how to welding parameter for gas tungsten arc welding of aluminum alloy.

Application of 23 Factorial Design Experiments for Gas Tungsten Arc Welding Parameters on ASTM A36 Steel Welds

2012 ◽  
Vol 246-247 ◽  
pp. 707-711
Author(s):  
Prachya Peasura
Keyword(s):  
Carbon Steel ◽  
Arc Welding ◽  
Welding Current ◽  
Gas Tungsten Arc Welding ◽  
Welding Parameters ◽  
Tungsten Electrode ◽  
Current Electrode ◽  
Gas Tungsten Arc ◽  
Gas Tungsten ◽  
And Tungsten

ASTM A36 carbon steel is the most commonly available of the hot-rolled steels. This specification covers carbon steel shapes, plates, and bars of structural quality for use in riveted, bolted, or welded construction of bridges and buildings, and for general structural purposes. The research was to study the in effected of gas tungsten arc welding parameters which effects the hardness and physical characteristics of welding for carbon steel ASTM A36. The specimen was carbon steel sheet metal 6 mm thick. The 23 factors experiment was used polarity direct current electrode negative (DCEN) and alternating current (AC), welding current at 90 and100 amperes with tungsten electrode angles at 30 and 60degree. The weld sample was test by hardness and penetration. The result showed that polarity, welding current and tungsten electrode angle had on interaction on hardness and penetration at 95% confidence (p-value < 0.05).The factors made maximum hardness was polarity AC, welding current 100 amp. and tungsten angle 60๐of 803.16 HV. The factors made maximum penetration was polarity DCEN, welding current 100 amp. and tungsten angle 60๐ of 2.71mm. The research data can be used to determine the appropriate gas tungsten arc welding process of carbon steel weld.

scholarly journals Effect of Current on Mechanical Properties and Microstructure of Aluminum 6061 with Gas Tungsten Arc Welding Process

Kapal ◽  
2020 ◽  
Vol 17 (3) ◽  
pp. 107-113
Author(s):  
Tarmizi Tarmizi ◽  
Kevin Daniel Sianturi ◽  
Irfan Irfan
Keyword(s):  
Mechanical Properties ◽  
Arc Welding ◽  
Gas Flow ◽  
Welding Process ◽  
Butt Joint ◽  
Gas Tungsten Arc Welding ◽  
Welding Parameters ◽  
Gas Tungsten Arc ◽  
Gtaw Process ◽  
Gas Tungsten

Aluminum 6061 is an aluminum alloy that is widely used in various industrial fields, which heat treatable. However, it can be joined using a welding process. Aluminum joining using the Gas Tungsten Arc Welding (GTAW) process has become the option to produce good quality joints. This research aims to get optimum welding parameters by knowing the mechanical properties and microstructure of the welding results. The GTAW process uses a 25-volt voltage, Argon protective gas flow rate of 15 liters per minute with filler rod ER 5356 with 2.4 mm diameter and electrodes tungsten 2.4 mm in diameter. This process uses a single V butt joint and groove angle of 60° with variations in the current of 100, 110 and 120 A. The results indicate that specimens with a variety of current of 110 A give better results in the absence of defects, have a tensile strength of 152 MPa, and get a hardness value of 87.55 HV, which is the highest compared to the other two specimens. Whereas specimens with the current variation of 100 and 120 A have defects in the weld area. The optimum parameters of the 6061 aluminum GTAW process with a thickness of 6 mm using a current of 110 A bring on better outcomes and mechanical properties than the use of currents of 100 and 120 A.

scholarly journals Analysis of Current on Mechanical Properties and Microstructure of A53 Gr B Material with Gas Tungsten Arc Welding Process

Teknik ◽  
2021 ◽  
Vol 42 (1) ◽  
pp. 20-28
Author(s):  
Tarmizi Tarmizi ◽  
Yudha Bakti Nugraha ◽  
Irfan Irfan
Keyword(s):  
Mechanical Properties ◽  
Arc Welding ◽  
Gas Flow ◽  
Welding Process ◽  
Welding Current ◽  
Gas Tungsten Arc Welding ◽  
Correct Process ◽  
Gas Tungsten Arc ◽  
Gas Tungsten ◽  
Arc Welding Process

The welding use correct process parameters will produce joint with optimum in mechanical properties. The current is a very important process parameter in welding. Gas Tungsten Arc Welding process carbon steel A53 Gr B uses current variations can be an option to get the best quality joints. The purpose of this research is to get optimum mechanical properties and microstructure by varying the current. The experimental method uses GTAW process by varying current in welding A 53 Gr B using a single V butt joint and a 5G welding position, the Argon protective gas flow rate of 15 liters per minute with filler rod ER 70 S-6. This process also uses 11-13 Volt voltage with DCEN polarity and current 70, 90, and 110A. Based on ASME Section IX, the test results show that the specimen with a current of 90A gives optimum results with a tensile strength of 480 MPa and a hardness value of 190 HV, whereas specimens with welding current of 70A bring incomplete penetration defects in the weld area. The use of welding current 90A in this research provides welding results with better mechanical properties and microstructure compared to the use of currents of 70 and 110A

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