Analysis of Wire Feeder Speed and Gas Flow Rate on The Mechanical Properties of SS 316 Metal GMAW Welding

2021 ◽  
Author(s):  
Duwi Leksono Edy ◽  
Widivanti ◽  
Bambang Adi Wahyudi
Keyword(s):  
Mechanical Properties ◽  
Flow Rate ◽  
Gas Flow ◽  
Gas Flow Rate ◽  
Gmaw Welding

scholarly journals The Effect of Process Parameters on the Microstructure and Mechanical Properties of AW5083 Aluminum Laser Weld Joints

Metals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1443 ◽  
Author(s):  
Maroš Vyskoč ◽  
Miroslav Sahul ◽  
Mária Dománková ◽  
Peter Jurči ◽  
Martin Sahul ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Process Parameters ◽  
Flow Rate ◽  
Weld Joint ◽  
Gas Flow ◽  
Filler Wire ◽  
Shielding Gas ◽  
Gas Flow Rate ◽  
Weld Joints

In this article, the effect of process parameters on the microstructure and mechanical properties of AW5083 aluminum alloy weld joints welded by a disk laser were studied. Butt welds were produced using 5087 (AlMg4.5MnZr) filler wire, with a diameter of 1.2 mm, and were protected from the ambient atmosphere by a mixture of argon and 30 vol.% of helium (Aluline He30). The widest weld joint (4.69 mm) and the highest tensile strength (309 MPa) were observed when a 30 L/min shielding gas flow rate was used. Conversely, the narrowest weld joint (4.15 mm) and the lowest tensile strength (160 MPa) were found when no shielding gas was used. The lowest average microhardness (55.4 HV0.1) was recorded when a 30 L/min shielding gas flow rate was used. The highest average microhardness (63.9 HV0.1) was observed when no shielding gas was used. In addition to the intermetallic compounds, β-Al3Mg2 and γ-Al12Mg17, in the inter-dendritic areas of the fusion zone (FZ), Al49Mg32, which has an irregular shape, was recorded. The application of the filler wire, which contains zirconium, resulted in grain refinement in the fusion zone. The protected weld joint was characterized by a ductile fracture in the base material (BM). A brittle fracture of the unshielded weld joint was caused by the presence of Al2O3 particles. The research results show that we achieved the optimal welding parameters, because no cracks and pores were present in the shielded weld metal (WM).

scholarly journals Influences of acetylene gas flow rate on mechanical properties and chemical structure of nanocomposite TiC diamond-like carbon films

2007 ◽  
Vol 56 (4) ◽  
pp. 2377
Author(s):  
Ma Guo-Jia ◽  
Liu Xi-Liang ◽  
Zhang Hua-Fang ◽  
Wu Hong-Chen ◽  
Peng Li-Ping ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Flow Rate ◽  
Chemical Structure ◽  
Gas Flow ◽  
Carbon Films ◽  
Diamond Like Carbon ◽  
Gas Flow Rate

scholarly journals Investigation of Mechanical Properties of Metal Inert Gas-Brazed TRIP800 Steel Joints Using Different Shielding Gas Flow Rate

2014 ◽  
Vol 125 (2) ◽  
pp. 473-474 ◽  
Author(s):  
N. Akkas ◽  
F. Varol ◽  
E. Ferik ◽  
E. Ilhan ◽  
U. Ozsarac ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Flow Rate ◽  
Gas Flow ◽  
Inert Gas ◽  
Shielding Gas ◽  
Gas Flow Rate ◽  
Steel Joints

Welding Repair of Aluminium Alloy 6082 T6 by TIG Welding Process

2016 ◽  
Vol 872 ◽  
pp. 3-7
Author(s):  
Kraiwut Hoyingchareon ◽  
Prapas Muangjunburee
Keyword(s):  
Mechanical Properties ◽  
Weld Metal ◽  
Aluminium Alloy ◽  
Flow Rate ◽  
Heat Affected Zone ◽  
Gas Flow ◽  
Welding Process ◽  
Tig Welding ◽  
Gas Flow Rate ◽  
Complete Melting

This work focuses on welding repair of aluminium alloy 6082 T6 by TIG welding process. Two types of filler, 4043 and 5356 were used. A comparison at I= 120A,140A, welding speed 20cm/min and gas flow rate 15 L/min was studied. Physical characteristics, macrostructure and microstructure at weld metal and Heat Affected Zone (HAZ) were investigated. Which at 140A can welding repair. The parameter 140A have complete melting and fail area at HAZ and mechanical properties more than 120A.

Preparation and Mechanical Characterization of Amorphous B-C Films

2014 ◽  
Vol 970 ◽  
pp. 124-127 ◽  
Author(s):  
Shahira Liza ◽  
Hiroki Akasaka ◽  
Masayuki Nakano ◽  
Naoto Ohtake
Keyword(s):  
Mechanical Properties ◽  
Flow Rate ◽  
Gas Flow ◽  
Boron Content ◽  
Film Surface ◽  
Chemical Vapor ◽  
High Hardness ◽  
Atomic Ratio ◽  
Gas Flow Rate ◽  
Gas Pressures

This study has demonstrated that trimethylboron, B(CH3)3 is a suitable boron source material for the fabrication amorphous boron carbide (a-BC:H) films. a-BC:H films were deposited by pluse plasma chemical vapor deposition on a silicon substrate (100) with different gas pressures and gas flow rates at constant voltage, -5 kV . The grown a-BC:H films were found to be porous surface and their thickness were in the range of 0.95 to 1.56 μm for 3 h of deposition time. Results indicated that the boron contents, morphologies and mechanical properties of the a-BC:H films were dependent on the gas pressures and gas flow rate. The increased of boron content will introduce more porous film surface. The effect of boron content on the mechanical properties such as hardness, Youngs modulus, and wear resistance were discussed. The good quality film is obtained from B(CH3)3 at 5 Pa and gas flow rate of 15 cm3/min which boron to carbon atomic ratio is 0.43. This film has lower friction coefficient (0.3) sliding against stainless steel ball, high hardness (8.1 GPa) and Youngs modulus (62.2 GPa).

scholarly journals Mechanical Properties and Microstructural Analysis of 304 Stainless Steel by TIG Welding

2017 ◽  
Author(s):  
MUHAMMAD NAZMI HAKIM BIN RIDZUAN
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Flow Rate ◽  
Arc Welding ◽  
Gas Flow ◽  
Hardness Test ◽  
304 Stainless Steel ◽  
Gas Flow Rate ◽  
Gas Tungsten Arc ◽  
Set Up

Gas tungsten arc welding is the process repairing and widely used in heavy engineering for joining metal. It can be uses for various type of metal and application. The aim of this project is to study the effects of 304 stainless steel with 3 mm thickness on mechanical properties and its microstructure analysis towards gas tungsten arc welding method. The variables set up in this project were current, gas flow rate and welding direction upon rolling direction of stainless steel sheet. Three current setup were used which is 60 A, 80 A and 100 A Type of filler metal used in this project was ER 308L with 1.6 diameter. Two set up for gas flow rate were used which is 8 l/m and 12 l/m. Testing that carried out were tensile test, Vickers macro hardness test with 10 kgf load and microstructure analysis by using optical microscope. The effects of microstructure in austenitic stainless steel welds is discussed. From the mechanical properties procedures, the strength of the weld metal was obtain. For hardness testing, the most important zone to be focused were heat-affected zone (HAZ) and weld metal (WM). The integrity of the welding tested by using tensile test and hardness test with different amount of current and gas flow rate.

scholarly journals Influence of Nitrogen Gas Flow Rate on The Microstructural and Mechanical Properties of Tin Deposited Carbon Steel Synthesized by Cae

2017 ◽  
Vol 23 (4) ◽  
pp. 239 ◽  
Author(s):  
A. Mubarak ◽  
E. Hamzah
Keyword(s):  
Mechanical Properties ◽  
Carbon Steel ◽  
Flow Rate ◽  
Gas Flow ◽  
Steel Plates ◽  
Main Peak ◽  
Percentage Increase ◽  
Gas Flow Rate ◽  
Nitrogen Gas ◽  
Coated Carbon

This paper reports on the preparation of titanium nitride (TiN) thin films on carbon steel plates, using cathodic arc evaporation CAE PVD technique. We studied and discussed the effect of various nitrogen gas flow rates on microstructural and mechanical properties of TiN-coated carbon steel plates. The coating properties investigated in this work included the surface morphology, thickness of deposited coating, adhesion between the coating and substrate, coating composition, coating crystallography, hardness and surface characterization using a field emission scanning electron microscope (FE-SEM) with energy dispersive X-ray (EDX), Xray diffraction (XRD) with glazing incidence angle (GIA) technique, scratch tester, hardness testing machine, surface roughness tester and atomic force microscope (AFM). SEM analyses showed that all the films had columnar and dense structures with clearly defined substrate-film interfacial layers. The hardness of TiN-coated carbon steel was noted six times more than the hardness of uncoated one. An increase in nitrogen gas flow rate showed; decrease in the formation of macro-droplets, average roughness (Ra) and root-mean-square (RMS) values in CAE PVD technique. During XRD-GIA studies, it was observed that by increasing the nitrogen gas flow rate, the main peak [1,1,1] shifted toward the lower angular position. Microhardness of TiN-coated carbon steel showed about six times increase in hardness than the uncoated one. Scratch tester results showed an average adhesion between the coating material and substrate. Thanks to the high resolution power could be observed that by increasing nitrogen gas flow rate there was percentage increase in the bearing ratio while percentage decrease in histogram.

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