A Study of the Effect of Tool Pin Profiles on Tensile Strength of Welded Joints Produced Using Friction Stir Welding Process

Suresha, C. N.; Rajaprakash, B.M.; Upadhya, S. Mamatha

doi:10.1080/10426914.2010.532527

Cited by 80 publications

(35 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The tool pin profile is one of the predominant parameters controlling these states. The defect-free joints can be made, if the proper tool pin profile is used for making FSW joints (Suresha et al 2011;Zhao et al 2005;Kumar et al 2011). In this investigation, the defect-free joints were achieved while using THC and TTC pin profiled tools in both air and water cooling medium.…”

Section: Discussionmentioning

confidence: 91%

The effect of pin profiles on the microstructure and mechanical properties of underwater friction stir welded AA2519-T87 aluminium alloy

Sabari

Malarvizhi

Balasubramanian

2016

Int J Mech Mater Eng

View full text Add to dashboard Cite

Background: AA2519-T87 is a new armour grade aluminium alloy employed in the fabrication of light combat military vehicles. Joining of this material using fusion welding processes, results in the formation of solidification defects like porosity, alloy segregation and hot cracking. In order to overcome the solidification related problems, solid state welding processes such as friction stir welding (FSW) can be used. Though the joining takes place below the melting temperature of the material, the thermal cycle experienced by the thermo-mechanical-affected zone (TMAZ) and heat-affected zone (HAZ) is causing grain coarsening and precipitates dissolution in the age-hardenable aluminium alloys, which deteriorate the joint properties. To get rid of this problem, underwater friction stir welding (UWFSW) process can be employed. The water cooling reduces the heat, and thus, the thermal softening required taking place in TMAZ and HAZ. Therefore, the material flow is entirely different in FSW and UWFSW.

show abstract

Section: Discussionmentioning

confidence: 91%

The effect of pin profiles on the microstructure and mechanical properties of underwater friction stir welded AA2519-T87 aluminium alloy

Sabari

Malarvizhi

Balasubramanian

2016

Int J Mech Mater Eng

View full text Add to dashboard Cite

show abstract

“…Suresha et al [19] analyzed the effect of tool probes on FSW of AA7075-T6. Two types of probes such as conical and square were used in the analysis and optimum performance characteristics were estimated for both the tools.…”

Section: Introductionmentioning

confidence: 99%

Effect of Shoulder Surface Dimension and Geometries on FSW of AA7039

Devuri¹,

Mahapatra²,

Harsha³

et al. 2014

Journal for Manufacturing Science and Production

View full text Add to dashboard Cite

In the present study, friction stir welding of AA7039 butt plates were investigated with respect to threaded probed tools having different shoulder diameters and shoulder surface geometries. The ultimate tensile properties, micro hardness and grain size of the welds were investigated with respect to the varying tool geometries. The mechanical properties of the welded joints were observed to be influenced by the shoulder diameter and shoulder surface geometry. With the increase in the shoulder diameter, the effect of shoulder concavity on refining the weld grain size diminished. Good quality welds were produced by using tools with semi-concave shoulder surface having shoulder and probe diameters of 19 mm and 7 mm respectively. The fracture surfaces of AA7039 weld samples were dimpled and the crack front energydispersive X-ray spectroscopy analysis exhibited absence of segregation of Zn.

show abstract

“…Kumar and Kailas, (2008) investigated the role of FSW tool on material flow and weld formation and reported that the defect free welds are formed by proper shoulder contact with the base material. Suresha et al (2011) have studied the effect of geometry of tool pin profiles on strength of the welded joints produced using friction stir welding process. It has been reported that the conical pin with threads performed better.…”

Section: Introductionmentioning

confidence: 99%

Development of a model for friction stir weld quality assessment using machine vision and acoustic emission techniques

Rajashekar

Rajaprakash

2016

Journal of Materials Processing Technology

View full text Add to dashboard Cite

a b s t r a c tThe surface texture of friction stir weld is related to internal structure of weld. The statistical image parameters along good and defect weld regions are quantitatively evaluated for quality from the weld bead images, which are processed and analyzed using machine vision technique and X-ray radiography. The weld strength obtained along the weld regions showing similar variations in Acoustic Emission (AE) data, which was acquired during welding and image data of the weld bead are analyzed to assess the weld quality. The combined model developed using limiting values of image data and AE data along different regions of weld evaluate the weld quality more reliably.

show abstract

A Study of the Effect of Tool Pin Profiles on Tensile Strength of Welded Joints Produced Using Friction Stir Welding Process

Cited by 80 publications

References 8 publications

The effect of pin profiles on the microstructure and mechanical properties of underwater friction stir welded AA2519-T87 aluminium alloy

The effect of pin profiles on the microstructure and mechanical properties of underwater friction stir welded AA2519-T87 aluminium alloy

Effect of Shoulder Surface Dimension and Geometries on FSW of AA7039

Development of a model for friction stir weld quality assessment using machine vision and acoustic emission techniques

Contact Info

Product

Resources

About