scholarly journals Optimization of Process Parameters in Dissimilar Joining between SAPH 440 steel with 6061 aluminum alloy by MIG Brazing

2021 ◽  
Vol 2 (1) ◽  
Keyword(s):  
Shear Strength ◽  
Aluminum Alloy ◽  
Feed Rate ◽  
6061 Aluminum Alloy ◽  
Dissimilar Joining ◽  
Optimization Of Process Parameters ◽  
Strength Behavior ◽  
Torch Angle ◽  
Wire Feed ◽  
Maximum Shear Strength

The aim of this paper was to determine an optimal brazing condition for dissimilar joining between SAPH 440 steel with 6061 aluminum alloy. The brazing variables investigated in this study encompassed brazing speed, brazing current, wire feed rate, and torch distance and its angle. Taguchi technique was employed as the experimental strategy, and response optimizations on shear strength were performed using the S/N ratio. Results indicated that brazing variables have given a significant effect on the shear strength behavior. The optimal brazing condition was at 540mm/min of brazing speed, 25 A of brazing current, 8m/min of wire feed rate, 3mm of torch distance, and 80 degree of torch angle. Lastly, the maximum shear strength prediction of the optimal condition was 3810.50N. Confirmation tests on the optimal brazing condition were 3451.21N.

Effect of Filler Wire Composition on the Nd:YAG Laser Weldability of 6061 Aluminum Alloy

2005 ◽  
Vol 475-479 ◽  
pp. 2591-2594 ◽  
Author(s):  
Jong Won Yoon ◽  
Young Sup Lee ◽  
Kyoung Don Lee ◽  
Ki Young Park
Keyword(s):  
Tensile Strength ◽  
Aluminum Alloy ◽  
Grain Boundaries ◽  
Nd:Yag Laser ◽  
Solidification Cracking ◽  
Filler Wire ◽  
6061 Aluminum Alloy ◽  
Wire Feed

2 mm thick 6061-T6 aluminum alloy sheets were I square butt welded using 3kW Nd:YAG laser. Filler wires of 1 mm diameter, 5183A(Al-4wt.%Mg), 4043A(Al-5wt.%Si) and 4047A (Al-12wt.%Si) were used. The welds made with 4047A wire showed the lowest solidification cracking among the welds investigated. Abundant amount of Al-12wt.%Si eutectic which was observed at the grain boundaries of the 4047A wire feed welds was closely related with the reduced solidification cracking susceptibility. Yield and tensile strength, and formability of the welds made with 4047A wire were improved compared to the welds made with other filler wires, which is attributed to the reduced cracking susceptibility in the welds.

Optimization of Laser Welding Parameters in Aluminum Alloy Welding and Development of Quality Monitoring System for Light Weight Vehicle

2012 ◽  
Vol 706-709 ◽  
pp. 2998-3003 ◽  
Author(s):  
Young Whan Park ◽  
Dong Yun Kim
Keyword(s):  
Tensile Strength ◽  
Aluminum Alloy ◽  
Laser Welding ◽  
Monitoring System ◽  
Welding Speed ◽  
Feed Rate ◽  
Laser Power ◽  
Filler Wire ◽  
Weld Quality ◽  
Wire Feed

In this paper laser welding AA5182 of aluminum alloy with AA5356 filler wire were performed with respect to laser power, welding speed, and wire feed rate. The experiments showed that the tensile strength of the weld was higher than that of the base material under sufficient heat input conditions. A genetic algorithm was used to optimize process parameters which were the laser power, welding speed, and wire feed rate. To do that, a fitness function was formulated, taking into account weldability and productivity. A factor for the weldabilty used tensile strength estimation model which was made by neural network, and as the productivity, welding speed, and wire feed rate were used. Weld monitoring system for aluminum laser welding with filler wire was constructed through the optical sensors to measure the plasma light intensity. Relationship between monitoring signal and plasma and keyhole behavior according to welding condition was analyzed and it was found that sensor signal could express the information for weld quality. Weld quality estimation algorithm was formulated fuzzy multi feature pattern recognition algorithm using the monitoring signals. Quality prediction system was also developed to apply this algorithm to production line.

Mechanical Properties of Aluminium-Alumina Welding by Friction Welding

2011 ◽  
Vol 418-420 ◽  
pp. 1279-1287
Author(s):  
Tummasook Mingmuang ◽  
Sukangkana Lee ◽  
Chawalit Thinvongpituk
Keyword(s):  
Mechanical Properties ◽  
Shear Strength ◽  
Feed Rate ◽  
Friction Welding ◽  
Deformation Rate ◽  
Alumina Ceramics ◽  
Thermal Strength ◽  
Welding Temperature ◽  
Welding Interface ◽  
Maximum Shear Strength

This experiment was aimed to investigate mechanical properties of aluminium-alumina welding by using friction welding. Effect of feed rate on hardness and shear strength of welding interface were determined. Cracking of alumina ceramics was also investigated. In addition, this research is to define and analyse temperature of an interface and deformation rate of aluminium during process. It was found that welding temperature increased with increasing feed rate. Increasing feed rate resulted in increasing of deformation rate and flow of aluminium lead to incresing of welded area. After welding, hardness of aluminium near interface was increased from 44-46 HV to 52.6-55.7 HV. Hardness of aluminium decreased with increasing distance from interface. The maximum shear strength was 29 MPa obtained from 0.3 mm/s feed rate. The minimum shear strength was 3.1 MPa obtained from 0.1 mm/s feed rate. Shear strength was deteriorated by both mechanical and thermal strength. It can be clearly seen that increasing feed rate increase welded area, resulted in higher interface strength.

scholarly journals Microstructural Evolution of AA5154 Layers Intermixed with Mo Powder during Electron Beam Wire-Feed Additive Manufacturing (EBAM)

Metals ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 109
Author(s):  
Anna Zykova ◽  
Andrey Chumaevskii ◽  
Andrey Vorontsov ◽  
Nickolay Shamarin ◽  
Aleksandr Panfilov ◽  
...  
Keyword(s):  
Shear Strength ◽  
Aluminum Alloy ◽  
Electron Beam ◽  
Feed Additive ◽  
Powder Bed ◽  
Simultaneous Transfer ◽  
Mixed Layers ◽  
Wire Feed ◽  
Disk Test ◽  
Low Shear

AA5154 aluminum alloy wall was built using EBAM where the wall’s top layers were alloyed by depositing and then remelting a Mo powder-bed with simultaneous transfer of aluminum alloy from the AA5154 wire. The powder-beds with different concentrations of Mo such as 0.3, 0.6, 0.9 and 1.2 g/layer were used to obtain composite AA5154/Mo samples. All samples were characterized by inhomogeneous structures composed of as-deposited AA5154 matrix with coarse unreacted Mo articles and intermetallic compounds (IMC) such as Al12Mo, Al5Mo, Al8Mo3, Al18Mg3Mo2 which formed in the vicinity of these Mo particles. The IMC content increased with the Mo powder-bed concentrations. The AA5154 matrix grains away from the Mo particles contained Al-Fe grain boundary precipitates. Mo-rich regions in the 0.3, 0.6, 0.9 and 1.2 g/layer Mo samples had maximum microhardness at the level of 2300, 2600, 11,500 and 9000 GPa, respectively. Sliding pin-on-steel disk test showed that wear of A5154/Mo composite reduced as compared to that of as-deposited AA5154 due to composite structure, higher microhardness as a well as tribooxidation of Al/Mo IMCs and generation of mechanically mixed layers containing low shear strength Mo8O23 and Al2(MoO4)3 oxides.

Shear strength behavior of Mont Terri Opalinus Claystone in fault zone

2015 ◽  
Vol 10 (1) ◽  
pp. 31-38
Author(s):  
Ildikó Buocz ◽  
Nikoletta Rozgonyi-Boissinot ◽  
Ákos Török
Keyword(s):  
Shear Strength ◽  
Fault Zone ◽  
Strength Behavior ◽  
Mont Terri

AMBRALOY 928

Alloy Digest ◽  
1958 ◽  
Vol 7 (10) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Shear Strength ◽  
Aluminum Alloy ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Strength ◽  
General Corrosion ◽  
Copper Aluminum

Abstract AMBRALOY-928 is a copper-aluminum alloy having high strength, hardness and excellent resistance to general corrosion. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength. It also includes information on corrosion resistance as well as forming, machining, and joining. Filing Code: Cu-69. Producer or source: American Brass Company.

KAISER ALUMINUM ALLOY 6033

Alloy Digest ◽  
2003 ◽  
Vol 52 (11) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Shear Strength ◽  
Aluminum Alloy ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Heat Treating ◽  
Kaiser Aluminum ◽  
Alloy 6061

Abstract Kaiser Aluminum alloy 6033 has improved machinability over alloy 6061 with an addition of bismuth. The alloy also has a good anodizing response and higher strength than alloy 6061. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: AL-386. Producer or source: Tennalum, A Division of Kaiser Aluminum.

KAISER ALUMINUM ALLOY 7049

Alloy Digest ◽  
1999 ◽  
Vol 48 (12) ◽  
Keyword(s):  
Mechanical Properties ◽  
Shear Strength ◽  
Aluminum Alloy ◽  
Physical Properties ◽  
Surface Treatment ◽  
Stress Corrosion Cracking ◽  
Heat Treating ◽  
Kaiser Aluminum ◽  
Resistance To Stress ◽  
Structural Parts

Abstract Kaiser Aluminum Alloy 7049 has high mechanical properties and good machinability. The alloy offers a resistance to stress-corrosion cracking and is typically used in aircraft structural parts. This datasheet provides information on composition, physical properties, hardness, tensile properties, and shear strength as well as fatigue. It also includes information on forming, heat treating, machining, and surface treatment. Filing Code: AL-365. Producer or source: Tennalum, A Division of Kaiser Aluminum.

KAISER ALUMINUM ALLOY KA62

Alloy Digest ◽  
1999 ◽  
Vol 48 (10) ◽  
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Shear Strength ◽  
Aluminum Alloy ◽  
Physical Properties ◽  
Surface Treatment ◽  
Physical And Mechanical Properties ◽  
Heat Treating ◽  
Lead Free ◽  
Kaiser Aluminum

Abstract Kaiser Aluminum alloy KA62 (Tennalum alloy KA62) is a lead-free alternative to 6262. It offers good machinability and corrosion resistance and displays good acceptance of coatings (anodize response). It can be used in place of 6262 because its physical and mechanical properties are equivalent to those of 6262 (see Alloy Digest Al-361, September 1999). This datasheet provides information on composition, physical properties, hardness, tensile properties, and shear strength. It also includes information on corrosion resistance as well as forming, heat treating, machining, and surface treatment. Filing Code: AL-362. Producer or source: Tennalum, A Division of Kaiser Aluminum.

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