Experimental investigation on deformation and wear of WC tool during friction stir welding (FSW) of stainless steel

Siddiquee, Arshad Noor; Pandey, Sunil

doi:10.1007/s00170-014-5846-z

Cited by 79 publications

(30 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…W and Co. The separation of the W particles from the tool may be attributed to the mechanical wear and softening of the ductile Co binder, which generally takes place at high welding temperature and stresses [37,52,53]. The stresses are induced in the FSW tool as a result of the resistance provided by the workpiece material.…”

Section: Microstructure and Mechanical Propertiesmentioning

confidence: 99%

A three-dimensional heat transfer modelling and experimental study on friction stir welding of dissimilar steels

Pankaj

Tiwari

Biswas

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

View full text Add to dashboard Cite

In this research, numerical as well as experimental analysis on friction stir welding (FSW) of dissimilar steels, i.e. DH36 steel and AISI 1008 steel, was performed. A 3D heat transfer FE model based on Abaqus/CAE using Fortran code via DFLUX subroutine was developed to investigate the effect of FSW parameters (i.e. rotational speed and traverse speed) on temperature distribution during the welding. It was observed that decreasing the traverse speed, increasing the rotational speed and shoulder diameter enhanced the peak temperature due to higher heat input. Based on the experimentally obtained sound quality welding parameters, the FE model was successfully validated with a maximum percentage error of 5.57% for peak temperature. Experimental results revealed that the higher heat generation reduced the grain size by increasing the rotational speed and decreasing the traverse speed. The inhomogeneous hardness distribution was observed across the weld cross section due to grain size variation. The higher grain refinement at a rotational speed of 600 rpm with a traverse speed of 70 mm/min produced the maximum value of the hardness and impact toughness. The tensile weld samples were fractured in the base metal zone (i.e. AISI 1008 steel) and experienced the tensile strength within the range of the AISI 1008 steel. The microstructure in the SZ exhibited the Widmanstatten ferrite in AISI 1008 steel and acicular-shaped bainite ferrite in DH36 steel. EDS analysis of the fractured surface of impact specimens confirmed the embedment of tungsten carbide particles in the weld zone due to the tool wear.

show abstract

Section: Microstructure and Mechanical Propertiesmentioning

confidence: 99%

A three-dimensional heat transfer modelling and experimental study on friction stir welding of dissimilar steels

Pankaj

Tiwari

Biswas

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

View full text Add to dashboard Cite

show abstract

“…The rotating and simultaneously traversing tool with a conical pin having a tool tilt angle actually cause material movement akin to extrusion and forging action ahead and behind the tool, respectively. The tool with configuration effectively mixes the material during welding [14]. The welds were performed by keeping Cu on the advancing side and the Al-alloy on the retreating side.…”

Section: Experimental Set Upmentioning

confidence: 99%

Friction Stir Welds of Al Alloy-Cu: An Investigation on Effect of Plunge Depth

Wahid¹,

Siddiquee²,

Khan³

et al. 2016

Archive of Mechanical Engineering

Self Cite

View full text Add to dashboard Cite

In the present study, butt joints of aluminum (Al) 8011-H18 and pure copper (Cu) were produced by friction stir welding (FSW) and the effect of plunge depth on surface morphology, microstructure and mechanical properties were investigated. The welds were produced by varying the plunge depth in a range from 0.1 mm to 0.25 mm. The defect-free joints were obtained when the Cu plate was fixed at the advancing side. It was found that less plunging depth gives better tensile properties compare to higher plunging depth because at higher plunging depth local thinning occurs at the welded region. Good tensile properties were achieved at plunge depth of 0.2 mm and the tensile strength was found to be higher than the strength of the Al (weaker of the two base metals). Microstructure study revealed that the metal close to copper side in the Nugget Zone (NZ) possessed lamellar alternating structure. However, mixed structure of Cu and Al existed in the aluminum side of NZ. Higher microhardness values were witnessed at the joint interfaces resulting from plastic deformation and the presence of intermetallics.

show abstract

“…The linear movement of the tool moves the material from the advancing side to the retreating side. Then, the material in the back of the pin is blended and stabled by the tool shoulder, resulting in a solid joint [9][10][11]. The principles of the FSW are schematically illustrated in Fig.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Optimization of the Yield Strength and Tensile Strength of Al7075 Butt Joint Produced by FSW and SFSW Using RSM and Desirability Function Method

Vahdati

Moradi

Shamsborhan

2020

Trans Indian Inst Met

View full text Add to dashboard Cite

Friction stir welding (FSW) is introduced as a solid-state welding process. Despite the many benefits of the FSW, the effects of the thermal cycles in this process are causing softening of the joint. This phenomenon generally occurs in heat-treatable aluminum alloys and results in reduced mechanical properties of the joint. To solve this limitation, submerged friction stir welding (SFSW) has been developed which is suitable for welding of heat-sensitive alloys. In this study, 31 butt joints were first produced from Al7075-T6 using the FSW. For this purpose, the response surface methodology was selected as the design of experiments method, and the variables: tool rotational speed, tool feed rate, tool shoulder diameter, and tool tilt angle were determined as the input variables. Then, the statistical analysis of the parameters affecting the yield strength and tensile strength of the joints was investigated. Then, 10 joints were produced using the SFSW based on the optimal values of the tool feed rate and tool tilt angle. Results of the ANOVA and regression analysis of the experimental data confirmed the accuracy and precision of regression equations and showed that the linear, interactional and quadratic terms of tool shoulder diameter and tool rotational speed effect on the yield strength and ultimate tensile strength of submerged joints. Also, the optimal conditions of input variables were determined by the desirability method and confirmed by the verification test.

show abstract

Experimental investigation on deformation and wear of WC tool during friction stir welding (FSW) of stainless steel

Cited by 79 publications

References 22 publications

A three-dimensional heat transfer modelling and experimental study on friction stir welding of dissimilar steels

A three-dimensional heat transfer modelling and experimental study on friction stir welding of dissimilar steels

Friction Stir Welds of Al Alloy-Cu: An Investigation on Effect of Plunge Depth

Modeling and Optimization of the Yield Strength and Tensile Strength of Al7075 Butt Joint Produced by FSW and SFSW Using RSM and Desirability Function Method

Contact Info

Product

Resources

About