Investigation of exit-hole repairing on dissimilar aluminum-copper friction stir welded joints

Mehta, Kush P.; Astarita, Antonello; Carlone, Pierpaolo; Gatta, Roberta Della; Vyas, Hardik; Vilaça, Pedro; Tucci, Fausto

doi:10.1016/j.jmrt.2021.06.019

Cited by 29 publications

(9 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Carbon steel and stainless steel can be welded using fusion welding, though several studies recommend solid-state welding to achieve better connection in dissimilar welding (Mehta and Badheka, 2016;Beygi et al, 2021;Gotawala and Shrivastava, 2021;Mehta et al, 2021). Frictional welding in copper and stainless steel is capable of producing superior interatomic diffusion leading to an increase in the metallurgical bonding of the joint (Vyas et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Interface Structure in Friction Welded Joints between Stainless Steel 304 and Mild Carbon Steel

Purwanto

2022

JCPMT

View full text Add to dashboard Cite

Friction welding is a solid-state welding process using heat generated through friction. Dissimilar materials can be joined properly with friction welding. This study is a continuation of the previous study and aimed to determine the interface structure occurred on stainless steel and carbon steel joints. Stainless steel 304 and mild carbon steel are joined with this method at 2000 rpm rotation for 15 seconds and forging time of 5 seconds with a pressure of 5 MPa. The results of a micro-observation using a scanning electron microscope show good bonding in the interface area. The carbon steel is more welded to the stainless steel in the periphery than in the center. The spectrum results of Energy Dispersive X-Ray of the interface show Fe, C and Cr elements content. This is what causes the strong welding bond.

show abstract

Section: Introductionmentioning

confidence: 99%

Interface Structure in Friction Welded Joints between Stainless Steel 304 and Mild Carbon Steel

Purwanto

2022

JCPMT

View full text Add to dashboard Cite

show abstract

“…During the joining, the mixing takes place between the aluminium and copper matrix so that some of the Cu pieces detach from the copper bulk and distribute and mix with the aluminium matrix, which leads to the formation of Intermetallic compounds (IMCs) through the solid-state diffusion in the SZ [21]. The chemical reaction between aluminium and copper below the melting point leads to the IMCs formation.…”

Section: Intermetallic Compound Formationmentioning

confidence: 99%

A different attempt to analysis friction stir spot welding of AA5083-copper alloys

Bagheri

Abdollah-zadeh

2023

Materials Science and Technology

View full text Add to dashboard Cite

A study has been made on the possibility of friction stir spot welding (FSSW) of the aluminium to copper sheet with SiC nanoparticles. Modified microstructures with different morphologies and properties were observed in the joint interface. It has been shown that the reinforcing particles cause an increasing role in the developed mechanical properties of joint samples such as strength and hardness due to the more particle-stimulated nucleation of recrystallisation (PSN), Zener pinning effect, and larger tension for the movement of dislocations. The experimental measurements indicated that AlCu and Al2Cu were the main intermetallic compounds formed in the interfacial region. It was concluded from fracture surfaces that ductile fracture is the primary fracture mode during the FSSW with SiC reinforcing particles.

show abstract

“…The exit-hole repair procedure is greatly simplified and less material is wasted by filling the exit-hole with material from above the exit-hole. Mehta et al [20,21] used a probeless tool to repair exit-holes in friction stir welded dissimilar aluminium-copper (Al-Cu) welded joints, forcing the surrounding base material to fill the exit-hole cavity. This method eliminates the pre-machining stage of the exit-hole repair process and saves filler material.…”

Section: Introductionmentioning

confidence: 99%

Exit-hole repairing in 7475 aluminium alloy welded joints based on refill friction stir processing

Yuan

Kang

Jiang

et al. 2023

Science and Technology of Welding and Joining

View full text Add to dashboard Cite

In this study, the refill friction stir processing (RFSP) method was utilised to repair a exit-hole defect located at the end of the friction stir welding (FSW) joints in 7475 aluminium alloy plate. The morphology, macroscopic defects, and mechanical properties of the repaired joints were investigated. The results demonstrate that the exit-hole was successfully refilled after RFSP. Material flow caused the refill voids, annular grooves, and un-stirred material defects. The maximum strength reached 415 Mpa, equal to 105% of the base defect-free weld. The mechanical properties of repaired joint were largely influenced by the stir zone (SZ) boundary and un-stirred material defects.

show abstract

Investigation of exit-hole repairing on dissimilar aluminum-copper friction stir welded joints

Cited by 29 publications

References 42 publications

Interface Structure in Friction Welded Joints between Stainless Steel 304 and Mild Carbon Steel

Interface Structure in Friction Welded Joints between Stainless Steel 304 and Mild Carbon Steel

A different attempt to analysis friction stir spot welding of AA5083-copper alloys

Exit-hole repairing in 7475 aluminium alloy welded joints based on refill friction stir processing

Contact Info

Product

Resources

About