Asymmetric mechanical properties and tensile behaviour prediction of aluminium alloy 5083 friction stir welding joints

Rao, Delin; Huber, K.; Heerens, J.; Santos, Jorge F. dos; Huber, N.

doi:10.1016/j.msea.2012.12.014

Cited by 98 publications

(60 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…6 reveals that the welded joint has a lower hardness as compared with the base material hardness. Rao et al (2013) observed the same trend for the aluminium alloy 5083. The lower value of the hardness is exhibited by softening region, which is shown by all the welded joints at different traverse speed and tool rotational speed.…”

Section: Micro-hardnesssupporting

confidence: 66%

Friction stir welding process: An investigation of microstructure and mechanical properties of Al Alloy AlMg4.5Mn joint

Kundu¹,

Singh²

2017

10.5267/j.esm

View full text Add to dashboard Cite

Aluminium alloy AlMg4.5Mn has got comprehensive acceptance in the manufacturing of light weight frames, marine structures which require high strength and worthy corrosion revulsion. The present investigation work focuses on friction stir welding process in which influences of operating parameters have been studied on friction stir welded butt joints. The FSWed joints specimens have been produced by experimentation at three levels of tool traverse speed and tool rotational speed keeping input force and tool tilt angle constant. Mechanical properties and microstructure of welded joints have been investigated in the present study. Change in the microstructure at different zones which transforms the mechanical properties of welded joints was due to the asymmetrical flow of material and thermal cycles around the pin. The second phase beta grains are formed as the very high temperature reached due to input parameters combinations. Traverse speed (TS) and tool rotational speed (TRS) are taken in a range of 16-40 mm/min and 500-1400 rpm, respectively. The best combination of parameters results in higher tensile strength which is well supported by the micro-hardness curve and the compact grains microstructure profile. Microstructure at different points and physical properties exhibited by the welded joint are well brought into line to summarize the effects of different parameters.

show abstract

Section: Micro-hardnesssupporting

confidence: 66%

Friction stir welding process: An investigation of microstructure and mechanical properties of Al Alloy AlMg4.5Mn joint

Kundu¹,

Singh²

2017

10.5267/j.esm

View full text Add to dashboard Cite

show abstract

“…The hardness was minimally reduced at TMAZ-NZ on the retreating side, whereas low hardness on the retreating side could lead to the fracture occurred in Figure 8during tensile test. [36] and dissimilar FSW joints [37]. In comparison, dissimilar joints of AA5083-AA6061 showed that hardness value gradually decreased from the advancing side (AA5083), starting from underneath the pin shoulder to the centre of the stir zone.…”

Section: Methodsmentioning

confidence: 96%

Friction stir welding of similar and dissimilar aluminium alloys for automotive applications

Selamat

Baghdadi

Sajuri³

et al. 2022

Int. J. Automot. Mech. Eng.

View full text Add to dashboard Cite

Aluminium alloys are lightweight materials relatively used in automotive industries. However, welding using the conventional welding methods is known to be difficult. In this study, the friction stir welding (FSW) known as the solid state joining process was extensively used for joining similar and dissimilar 5 mm aluminium alloy plates. The butt-joint type of similar joints (AA5083-AA5083) and dissimilar joints (AA5083-AA6061) were carried out under the same welding parameters; 1000 rpm (rotational speed) and 100 mm/min (transverse speed). Macro-and microstructural observations were acquired at the cross-section of the weld regions by stereo and optical microscopes. The microstructural study showed that the formation of 'onion ring' structure was detected in the nugget zone of similar joints, while wavy and distorted patterns appeared in dissimilar joints. All tensile specimens of similar welding joint showed similar fracture patterns where all fractures occurred in the thermo-mechanically affected zone (TMAZ). However, tensile specimens of dissimilar welding joint broke up at the TMAZ region as well as at Al6061 base metal at the retreating side. The tensile strength of similar joint and dissimilar joint was 22% and 19% lower compared to the base metal of Al5083 and Al6061.

show abstract

“…A medida que se tem ao avanço da ferramenta, forças trativas são exercidas na frente de processo enquanto que, na parte anterior a ferramenta, forças compressivas são dominantes. Além disso, a rotação do pino e a direção de solda são as mesmas para a região de início de deformação da junta (AS -Advancing Side) e opostas na região de redistribuição do metal (RS -Retreating Side), originando uma junta assimétrica, cujas propriedades vão depender da geometria da ferramenta, velocidade de soldagem, penetração, dentre outras variáveis [3]. Na Figura 1 tem-se uma visão geral do processo FSW, assim como alguns aspectos da formação da junta citados acima.…”

Section: Introductionunclassified

“…Na Figura 1 tem-se uma visão geral do processo FSW, assim como alguns aspectos da formação da junta citados acima. A assimetria entre os lados da junta formada pode então afetar a microestrutura da região, a Zona Termicamente Afetada (ZTA) e também a Zona Termomecanicamente Afetada (ZTMA), os quais estão diretamente relacionadas com a integridade da união soldada [3][4]. Desta maneira, neste trabalho foi verificado a influência de parâmetros operacionais como penetração da ferramenta, ângulo de ataque, tipo de ferramenta e modo de controle de penetração (posição ou força), na realização de juntas soldadas topo a topo de chapas de alumínio da liga 3105 H26.…”

Section: Introductionunclassified

Aplicação De Friction Stir Welding (Fsw) Na União De Chapas Finas De Alumínio

Santos¹,

Cristo²,

Borodiak³

2017

Anais Do Seminário De Laminação E Conformação

View full text Add to dashboard Cite

ResumoAs ligas de alumínio, em particular, apresentam certas restrições quando submetidas ao processo de união por soldagem. Isto se deve, principalmente, por apresentarem elevada condutividade térmica, elevada contração na solidificação e elevada solubilidade de hidrogênio. Levando em conta estes aspectos, o processo de soldagem FSW apresenta grande potencial para esta aplicação, visto que, é autógena, realizada sem fusão do material e sem utilização de escórias ou gases de proteção. A partir deste conceito, o objetivo do presente trabalho é avaliar a união de chapas finas de alumínio da liga 3105 H26, com espessura de 0,7mm. Para realização dos testes, foram analisados fatores como: penetração da ferramenta nas chapas processadas, ângulo de ataque, tipo de ferramenta e modo de controle de penetração (posição ou força). Os resultados indicaram que o modo de controle por força se mostrou o mais indicado para chapas finas, e que o regime transiente no início de soldagem foi a parte mais crítica para controle da qualidade da junta soldada. Palavras-chave: Soldagem FSW; Alumínio; Chapas; 3105 H26. THE USE OF FSW IN THINNER ALUMINIUM SHEETS AbstractAluminium alloys in particular, have certain limitations when subjected to welding bonding process. This is mainly present with a high thermal conductivity, high contraction in solidification and high solubility of hydrogen. Taking this into account, the welding process FSW has great potential for this application, since it is autogenous held without melting the material and without the use of slag or shielding gases. From this concept, the aim of this study is to evaluate the joining of thin sheets of aluminum alloy 3105 H26 with a thickness of 0.7 mm. To perform the test, factors were analyzed as of the tool in processed plates, angle of attack, type of tool penetration and control mode (position or force). The results indicate that the control mode is shown under the most suitable for thin slabs, and that the transient at the beginning of welding is the most critical part to control the weld quality.

show abstract

Asymmetric mechanical properties and tensile behaviour prediction of aluminium alloy 5083 friction stir welding joints

Cited by 98 publications

References 28 publications

Friction stir welding process: An investigation of microstructure and mechanical properties of Al Alloy AlMg4.5Mn joint

Friction stir welding process: An investigation of microstructure and mechanical properties of Al Alloy AlMg4.5Mn joint

Friction stir welding of similar and dissimilar aluminium alloys for automotive applications

Aplicação De Friction Stir Welding (Fsw) Na União De Chapas Finas De Alumínio

Contact Info

Product

Resources

About