Studi Pengaruh Pemanasan Awal pada Pengelasan Ulang Baja ASTM A36 akibat Reparasi terhadap Sifat Mekanis menggunakan Proses Las FCAW

Pangaribowo, Bimantara Haryudanto; Putra, Wing Hendroprasetyo Akbar

doi:10.12962/j23373539.v7i2.32392

Cited by 2 publications

(3 citation statements)

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“…The GTAW welding method is a welding process that uses an arc between non-consumable tungsten electrodes at the welding point (Al Huda, 2019). The definition of welding, according to the American Welding Society (Pangaribowo & Putra, 2019), is a metal or non-metallic joining process that is carried out by heating the material to be joined to the melting temperature, which is carried out with or without using pressure or with or without using filler metal. According to Lawrence in (Anhar, 2019), welding is a metal joining process.…”

Section: Introductionmentioning

confidence: 99%

Metoga GTAW Welding Joint Strength Study For Aisi 1045 Application Of Milling Tools

W¹,

Waluyo²

2023

JIIT

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The welding process is a permanent connection process for metal materials using heat energy. The GTAW (Gas Tungsten Arc Welding) welding method is carried out on AISI 1045 steel material with a solid round shape, which has the characteristics and properties of the material slightly above low carbon steel. The welding process was carried out based on AWS A5.18 standard specifications, in this study. by varying the welding amperage between 70, 90, and 110 amperes as well as the ER70S-G series electrodes.To check the results of the welding with the amperage variation, perform tensile testing with standard ASTM A-370 testing, hardness testing using the Vickers method with standard ASTM E-92 testing, microstructure inspection, and grain size calculations as a control for the results of the hardness test. The focus of testing and inspection is carried out in three influential areas, namely, areas of weld metal, HAZ (heat-affected zone), and base metal.The results of this study show that for 70 A welding amperage, the tensile test results in all samples breaking in the weld metal area. While welding amperage 90A broke two samples in the weld metal area, welding amperage 110A broke one sample in the weld metal area. For the results of the hardness test at 110 A amperes, the hardness ratio in the weld metal area to the HAZ area shows that the difference in hardness is not too large compared to the two amperes used, so a welding amperage of 110 A can be recommended. While the results of the microstructure examination in the weld metal area were dominated by pearliet and martensite with a little bainite, the hardness results in the weld metal area were harder compared to the HAZ area and base metal. Likewise, the results of grain size calculations using the Heyn method for regions with higher hardness make the grain sizes appear denser and smaller.

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Section: Introductionmentioning

confidence: 99%

Metoga GTAW Welding Joint Strength Study For Aisi 1045 Application Of Milling Tools

W¹,

Waluyo²

2023

JIIT

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Section: Introductionmentioning

confidence: 99%

“…Preheating is defined as providing heat treatment to the material to be welded. Preheat is the heat given to the parent material to be welded to obtain and maintain the preheat temperature [6].Pre-heating itself aims to reduce weld cracking and cooling rate in the weld metal and HAZ because welding on medium and high carbon steel materials can cause a martensite phase in the weld metal and HAZ. The martensitic phase arises because of its high carbon content and cooling rate.…”

mentioning

confidence: 99%

The effect of pre-heating distance of shielded metal arc welding on the mechanical properties of AISI 1045 steel

Sukmana

Andika

Djuansjah

et al. 2022

jttm

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Welding is a method of joining metals by utilizing local heat to form a metallurgical bond between the metals. The most common welding is electric welding, including the Shielded Metal Arch Welding (SMAW). This type of welding uses a filler wire or electrode. To reduce weld cracks and cooling rates in the weld metal and heat affected zone (HAZ) area, it is necessary to carry out a pre-heating process. Pre-heating is the application of heat to the material to be welded using oxyacetylene welding or a gas torch. This study aims to determine the appropriate pre-heating distance for the welding process of AISI 1045 steel, classified as a type of medium carbon steel widely used in shafts, gears, and piston connecting rods in motor vehicles. The parameters used in this study were the pre-heating distances of 1.5cm, 3cm, and 4.5cm that were preheated at a temperature of 150°C, using LB-52U type electrodes with a diameter of 2mm.

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Studi Pengaruh Pemanasan Awal pada Pengelasan Ulang Baja ASTM A36 akibat Reparasi terhadap Sifat Mekanis menggunakan Proses Las FCAW

Cited by 2 publications

References 1 publication

Metoga GTAW Welding Joint Strength Study For Aisi 1045 Application Of Milling Tools

Metoga GTAW Welding Joint Strength Study For Aisi 1045 Application Of Milling Tools

The effect of pre-heating distance of shielded metal arc welding on the mechanical properties of AISI 1045 steel

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