Optimization of TIG and EB welding parameters to improve tensile strength and corrosion resistance of AA2219-T87 aluminium-alloy

2021 ◽  
Author(s):  
B. Rajnaveen ◽  
G. Rambabu ◽  
K. Prakash ◽  
K. Srinivasa Rao
Keyword(s):  
Tensile Strength ◽  
Corrosion Resistance ◽  
Aluminium Alloy ◽  
Welding Parameters ◽  
Eb Welding

Design-of-experiments application in the friction stir welding of aluminium alloy AA 8011-h14 for structural application

2019 ◽  
Vol 16 (3) ◽  
pp. 606-622
Author(s):  
Navneet Khanna ◽  
Mahesh Bharati ◽  
Prachi Sharma ◽  
Vishvesh J. Badheka
Keyword(s):  
Tensile Strength ◽  
Aluminium Alloy ◽  
Tensile Testing ◽  
Visual Inspection ◽  
Welding Parameters ◽  
Nugget Zone ◽  
Content Type ◽  
Taguchi Analysis ◽  
Friction Stir ◽  
Maximum Tensile Strength

Purpose The demand for aluminium alloys has been increasing in almost all the fields. In this study, the friction stir welding (FSW) of similar aluminium alloy AA 8011-h14 has been presented using three levels of tool rotational speed (n), tool tilt angle (ϴ) and tool feed (f). The purpose of this paper is to study the effect of welding parameters on various properties and time-temperature plots. Design/methodology/approach FSW was carried out using the L-9 orthogonal array of welding parameters generated using the Taguchi approach. Visual inspection and radiography testing were conducted to detect the surface and volume defects, respectively. Taguchi analysis was carried out to get optimised welding parameters for tensile testing. The microstructural analysis was carried out for the specimen possessing maximum tensile strength and the obtained grain structures were compared with the microstructure results of the base material. The peak process temperatures were noted and time-temperature plots were analysed for the varying parameters. The maximum value of hardness was recorded and analysed. Findings Visual inspection and radiography testing confirmed defect-free joints. The maximum tensile strength achieved was 84.44 MPa with 64.95 per cent efficiency. The optimised parameters obtained using Taguchi analysis for tensile testing were 1,500 rpm, 1° and 50 mm/min. Microstructure analysis for the specimen possessing maximum tensile strength revealed fine and equiaxed grains in the nugget zone. Time-temperature plots suggested the maximum temperature of 389 °C on the advancing side. A maximum hardness value of 36.4 HV was obtained in the nugget zone. Originality/value As per the knowledge of the authors, this study is the first attempt for the detailed experimental analysis on the FSW of this particular aluminium alloy AA 8011-h14.

The Effect of Heat Treatment and Welding Parameters on the Corrosion Behaviour of a Friction Stir Welded 6056 Aluminium Alloy

2008 ◽  
Vol 38 ◽  
pp. 285-297
Author(s):  
T. Monetta ◽  
M. Montuori ◽  
Antonio Squillace ◽  
Francesco Bellucci
Keyword(s):  
Heat Treatment ◽  
Corrosion Resistance ◽  
Thermal Treatment ◽  
Aluminium Alloy ◽  
Intergranular Corrosion ◽  
Corrosion Behaviour ◽  
Welding Parameters ◽  
Thermal Treatments ◽  
Friction Stir ◽  
Parent Alloy

The current research has assessed the correlation between welding parameters and corrosion behaviour for friction stir welded 6056 aluminium alloy. Different thermal treatments and welding parameters were considered. For the welding parameters studied in this project, the data strongly indicate that sensitivity to corrosion is linked to the welding parameters employed. Substantial differences were found for the higher and lower speed welding parameters, with the lower speed parameters appearantly resulting in less corrosion resistance. The most widespread form of corrosion observed was pitting; however, intergranular corrosion (IGC) was also seen. While the T78 thermal treatment appears to decrease the corrosion resistance of the parent alloy, the weld region tends to improve, with the nugget being cathodic.

scholarly journals Influence of Tool Pin Profile and Welding Parameters on Tensile Strength of Aluminium Alloy 5052 during FSW

2017 ◽  
Vol 10 (31) ◽  
pp. 1-12
Author(s):  
Parminder Pal Singh ◽  
Gurmeet Singh Cheema ◽  
Amrinder Singh Kang ◽  
◽  
◽  
...  
Keyword(s):  
Tensile Strength ◽  
Aluminium Alloy ◽  
Welding Parameters ◽  
Tool Pin Profile ◽  
Tool Pin

scholarly journals CMT Additive Manufacturing Parameters Defining Aluminium Alloy Object Geometry and Mechanical Properties

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1545
Author(s):  
Gyula Ferenc Vasvári ◽  
Dávid Csonka ◽  
Tamás Zsebe ◽  
Ádám Schiffer ◽  
Ivan Samardžić ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Additive Manufacturing ◽  
3D Printing ◽  
Aluminium Alloy ◽  
Mechanical Stability ◽  
Raw Material ◽  
Movement Speed ◽  
Welding Parameters ◽  
Printing Technology ◽  
3D Printing Technology

Additive manufacturing technologies based on metal melting use materials mainly in powder or wire form. This study focuses on developing a metal 3D printing process based on cold metal transfer (CMT) welding technology, in order to achieve enhanced productivity. Aluminium alloy test specimens have been fabricated using a special 3D printing technology. The probes were investigated to find correlation between the welding parameters and geometric quality. Geometric measurements and tensile strength experiments were performed to determine the appropriate welding parameters for reliable printing. The tensile strength of the product does not differ significantly from the raw material. Above 60 mm height, the wall thickness is relatively constant due to the thermal balance of the welding environment. The results suggest that there might be a connection between the welding parameters and the printing accuracy. It is demonstrated that the deviation of ideal geometry will be the smallest at the maximum reliable welding torch movement speed, while printing larger specimens. As a conclusion, it can be stated that CMT-based additive manufacturing can be a reliable, cost-effective and rapid 3D printing technology with enhanced productivity, but without significant decrease in mechanical stability.

Effect of friction stir welding parameters on properties and structure of 1151T alloy sheets joints

2021 ◽  
pp. 11-18
Author(s):  
V.V. Ovchinnikov ◽  
A.M. Drits ◽  
I.V. Solov’eva
Keyword(s):  
Grain Size ◽  
Tensile Strength ◽  
Corrosion Resistance ◽  
Friction Stir Welding ◽  
Welded Joint ◽  
Welding Parameters ◽  
Natural Ageing ◽  
Friction Stir ◽  
Cooling Speed ◽  
T State

The mechanical and corrosive properties of welded joints of sheets with 6 mm thickness made of the 1151 alloy of the Al—Cu—Mg system in the T state (hardening and natural ageing) obtained by friction stir welding by single, double welding and bobbin tool welding is studied. It is shown that the change in the friction stir welding scheme does not result in noticeable change in the tensile strength of the welded joint and the weld metal. The grain size in the weld increased from 4.8 µm (single welding) to 10.5 µm when bobbin tool welding. The intercrystall line corrosion resistance of all welding zones (except the base metal) increases by about 1.4 to 2 times depending on the structural area due to the higher cooling speed of single friction stir welding compared to the bobbin tool welding,

DURIMPHY

Alloy Digest ◽  
2007 ◽  
Vol 56 (2) ◽  
Keyword(s):  
Tensile Strength ◽  
Corrosion Resistance ◽  
Yield Strength ◽  
Physical Properties ◽  
Precipitation Hardening ◽  
Heat Treating ◽  
High Yield ◽  
High Yield Strength ◽  
Precision Alloys ◽  
Very High

Abstract Durimphy is a maraging steel with 1724 MPa (250 ksi) tensile strength and a very high yield strength due to precipitation hardening. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: FE-140. Producer or source: Metalimphy Precision Alloys.

WIELAND-FX9

Alloy Digest ◽  
2011 ◽  
Vol 60 (8) ◽  
Keyword(s):  
Tensile Strength ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Cold Work ◽  
Heat Treating ◽  
High Manganese ◽  
Bronze Alloy ◽  
Good Strength

Abstract Wieland-FX9 is a high-manganese bronze alloy that has good strength and is available in numerous cold work tempers related to its minimum tensile strength. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: Cu-801. Producer or source: Wieland Metals Inc..

Sign in / Sign up

Export Citation Format

Share Document