Study of Wind Velocity Impact upon the Quality of Shielding and upon the Thermal Processes under MAG Welding

Chinakhov, D. A.; Vorobyev, A. V.; Grigorieva, E. G.; Mayorova, E.I.

doi:10.4028/www.scientific.net/amm.770.253

Cited by 4 publications

(5 citation statements)

References 10 publications

(16 reference statements)

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“…The thermal conditions during welding significantly influence crucial aspects such as microstructure, weld defects, stress distribution, and phase transformations in both the weld metal and Heat Affected Zone (HAZ) [2]. Among these factors, the temperature of the welding room plays a key role in determining heat input and cooling rates during welding [13]. Lower temperatures in the welding environment result in reduced heat input and faster cooling rates.…”

Section: Discussion Of the Effect Of Welding Room Environment To The ...mentioning

confidence: 99%

“…Overexposure becomes a concern if local exhaust ventilation systems are inadequately utilized [12]. A research focused on the impact of air flow velocity on shielding gas performance on MAG welding indicated suboptimal shielding gas function at an air flow velocity of 10 m/s, necessitating increased nozzle numbers to maintain shielding gas flow in windy environments [13]. This study only focused on the variation of wind velocity without increased nozzle numbers to assess the effect of environment condition solely.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…The paper [5,13] have defined the negative effects of air flow velocity on GMAW. However, the welding room requiring an air ventilation system which generate air flow to maintain the good air quality.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

See 2 more Smart Citations

Welding room development for simultaneous improvement of welder health and weld quality of gas metals arc welded aluminum AA5083-H112

Triyono,

Harseno,

Muhayat

2024

EEJET

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This study investigated the weld joint mechanical properties and welding fume exposure associated with Gas Metal Arc Welding of aluminum AA5083-H112 in 27 different welding room environment conditions. These conditions consist of variation in temperature, as well as intake and exhaust wind velocities. The temperature varies as 19 °C, 27 °C and 35 °C. Both the intake and exhaust velocity vary as 0 m/s, 3.1 m/s and 5.5 m/s. The experimental findings underscore the pronounced influence of these factors on both weld quality and welder exposure to fumes. Notably, intake wind velocity emerges as the most critical factor, contributing significantly to 47.68 % in weld joint tensile strength. The temperature emerges as the least critical factor with 12.02 % of contribution. However, temperature became the most critical factor on weld joint impact energy with 54.89 % of contribution while exhaust wind velocity became the least with 3.89 %. Air quality monitoring highlights the importance of optimal intake and exhaust fan configuration to effectively reduce fume exposure. All examined welding room environment condition are deemed safe for the welder, as they do not exceed the Treshold Limit Value (TLV), except the condition where the welding room lacks of air circulation in intake and exhaust wind velocity of 0 m/s. The identified optimal welding room condition exerts a temperature of 27 °C, intake and exhaust wind velocity of 0 m/s and 3.1 m/s respectively. This condition not only achieves established weld quality standards but also ensures compliance with fume exposure regulation. This research provides valuable insights for optimizing welding room environment to simultaneously maintain weld quality and safeguard the well-being of welders

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Section: Discussion Of the Effect Of Welding Room Environment To The ...mentioning

confidence: 99%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

See 1 more Smart Citation

Welding room development for simultaneous improvement of welder health and weld quality of gas metals arc welded aluminum AA5083-H112

Triyono,

Harseno,

Muhayat

2024

EEJET

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“…Even when joining conventionally produced aluminium alloys, porosity is considered to be the most critical challenge, and techniques to reduce the porosity level and to improve the mechanical properties of joints have been reported in the literature, such as heat input control [24], use of dynamic wire feeding techniques for fusion welding processes [25], pre-heating [26], optimised process parameters [27,28], use of CO 2 and He in the shielding gas mixture [29][30][31][32], higher quality control of the filler material [33] and laser cleaning of the parts to be welded prior to welding [34].…”

Section: Challenges In Welding Aluminium Alloysmentioning

confidence: 99%

A Review on the Weldability of Additively Manufactured Aluminium Parts by Fusion and Solid-State Welding Processes

Nunes,

Faes,

De Waele

et al. 2023

Metals

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Additive manufacturing (AM) processes are playing a significant role in several industrial sectors such as construction and machine building industries, involving a wide variety of metallic materials. Among these, the AM of aluminium alloys has developed significantly over the last decade, mainly through Powder Bed Fusion (PBF) and Directed Energy Deposition (DED) processes. Despite the many advantages of AM technology, some large or complex products cannot be produced entirely without the use of conventional manufacturing and joining processes, generally for financial or operational reasons. In this way, the ability to join conventionally and additively manufactured components or parts represents a crucial step towards their future use and the consolidation of conventional and additive manufacturing technologies. Despite the growing interest in AM technologies, there is still a significant lack of information on the joining of conventionally and additively manufactured components. The present work proposes a first review of the literature evaluating the weldability of AM aluminium alloys. The focus is on the use of fusion and solid-state welding processes and analysing the achieved microstructural evolution and mechanical properties. A clear relationship is observed between the AM technology used to produce the part, and the physical principles of the joining process. In addition, the gaps in the literature are highlighted to enable focused future work.

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“…Steel is increasingly being substituted by aluminum in the last few decades [1]. This is due to the fact that aluminum and its alloys are the most important materials to meet future automotive needs because of their numerous advantages such as light weight and corrosion resistance [2]. For example, aluminum is widely used to manufacture light rail transit (LRT) and high-speed trains (HST) because of its high strength, excellent machinability, and low price [3,4].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Enhancement of Welder Health and Aluminum Weld Joint Quality Using Controlled Welding Room Condition

Muhayat,

Ardika,

Kadir

et al. 2023

Safety

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Aluminum alloy is crucial for lightweight and fuel-efficient vehicles due to its strength, lightness, and corrosion resistance. However, welding aluminum vehicle parts poses challenges, particularly porosity issues caused by trapped hydrogen gas in the weld metal. This study aimed to investigate the impact of the welding room environment on the health and properties of aluminum welding joints. To achieve this, an isolated room was created, where variations in airflow velocity (1.1 m/s, 1.6 m/s, and 2.1 m/s) and temperature (19 °C, 27 °C, and 35 °C) were implemented. The fume condition of the room was assessed to determine its impact on health aspects, while bead appearance and macrostructure were evaluated to assess weld joint quality. Results revealed that higher airflow velocity and temperature reduced fume concentration in the welding room, indicating a healthier environment. However, these conditions also led to increased porosity defects and influenced the performance of the shielding gas. Additionally, higher ambient temperatures increased hydrogen solubility in the molten aluminum, exacerbating porosity issues. For optimal welder comfort and high-quality weld joints, it is recommended to maintain a low temperature and airflow velocity in the welding room, ensuring a healthier working environment while minimizing porosity defects.

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Study of Wind Velocity Impact upon the Quality of Shielding and upon the Thermal Processes under MAG Welding

Cited by 4 publications

References 10 publications

Welding room development for simultaneous improvement of welder health and weld quality of gas metals arc welded aluminum AA5083-H112

Welding room development for simultaneous improvement of welder health and weld quality of gas metals arc welded aluminum AA5083-H112

A Review on the Weldability of Additively Manufactured Aluminium Parts by Fusion and Solid-State Welding Processes

Simultaneous Enhancement of Welder Health and Aluminum Weld Joint Quality Using Controlled Welding Room Condition

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