Influence of Ni interlayer on microstructure and mechanical properties of laser welded joint of Al/Cu bimetal

Yan, Shenghong; Shi, Yan

doi:10.1016/j.jmapro.2020.09.078

Cited by 29 publications

(10 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When analyzing publications, it was found that after laser welding, most researchers conduct mechanical tests (mainly tensile or shear strength tests) [ 71 , 72 , 73 , 74 , 75 , 76 , 77 ] while vital Al/Cu joints properties are thermal conductivity and electrical conductivity [ 78 ]. That is, the main area of application is the branch of electrical contact or heat transfer products and devices.…”

Section: Laser Welding Of Aluminum Alloys To Coppermentioning

confidence: 99%

“…Additionally, several other works, in which micro-welding of electrical contacts [ 85 , 86 , 87 , 88 ], the influence of the choice of filler material and welding modes on the microstructure and mechanical properties of welded joints [ 72 , 89 , 90 , 91 , 92 ], studies of the optimal offset of the heat source based on the diagram phase state [ 93 ] are considered, are dedicated to laser welding of aluminum and copper.…”

Section: Laser Welding Of Aluminum Alloys To Coppermentioning

confidence: 99%

See 1 more Smart Citation

A Review: Laser Welding of Dissimilar Materials (Al/Fe, Al/Ti, Al/Cu)—Methods and Techniques, Microstructure and Properties

Kuryntsev

2021

Materials

View full text Add to dashboard Cite

Modern structural engineering is impossible without the use of materials and structures with high strength and low specific weight. This work carries out a quantitative and qualitative analysis of articles for 2016–2021 on the topic of welding of dissimilar alloys. It is found that laser welding is most widely used for such metal pairs as Al/Fe, Al/Ti, and Al/Cu. The paper analyzes the influence of the basic techniques, methods, and means of laser welding of Al/Fe, Al/Ti, and Al/Cu on the mechanical properties and thickness of the intermetallic compound (IMC). When welding the lap joint or spike T-joint configuration of Al/Fe, it is preferable to melt the steel, which will be heated or melted, by the laser beam, and through thermal conduction, it will heat the aluminum. When welding the butt-welded joint of Al/Fe, the most preferable is to melt the aluminum by the laser beam (150–160 MPa). When welding the butt-welded joint of Al/Ti, it is possible to obtain the minimum IMC and maximum mechanical properties by offsetting the laser beam to aluminum. Whereas when the laser beam is offset to a titanium alloy, the mechanical properties are 40–50% lower than when the laser beam is offset to an aluminum alloy. When lap welding the Al/Cu joint, under the impact of the laser beam on the aluminum, using defocusing or wobbling (oscillation) of a laser beam, it is possible to increase the contact area of electrical conductivity with the tensile shear strength of 95–128 MPa.

show abstract

Section: Laser Welding Of Aluminum Alloys To Coppermentioning

confidence: 99%

Section: Laser Welding Of Aluminum Alloys To Coppermentioning

confidence: 99%

A Review: Laser Welding of Dissimilar Materials (Al/Fe, Al/Ti, Al/Cu)—Methods and Techniques, Microstructure and Properties

Kuryntsev

2021

Materials

View full text Add to dashboard Cite

show abstract

“…With a further reduction in Zn by increasing the Al (from 22 to 28 wt.%), the corrosion resistance of the joints was slightly improved as described in [162]. The addition of a nickel interlayer between Al and Cu provided a more favourable microstructure, due to reduced Al diffusion into Cu, according to Yan et al [163]. Up to 30% in strength increase was achieved, when compared to the Al-Cu joint without the interlayer.…”

Section: Formation and Growth Of Cu-al Imc Layermentioning

confidence: 84%

A Review on Laser-Assisted Joining of Aluminium Alloys to Other Metals

Bunaziv

Akselsen

Ren

et al. 2021

Metals

View full text Add to dashboard Cite

Modern industry requires different advanced metallic alloys with specific properties since conventional steels cannot cover all requirements. Aluminium alloys are becoming more popular, due to their low weight, high corrosion resistance, and relatively high strength. They possess respectable electrical conductivity, and their application extends to the energy sector. There is a high demand in joining aluminium alloys with other metals, such as steels, copper, and titanium. The joining of two or more metals is challenging, due to formation of the intermetallic compound (IMC) layer with excessive brittleness. High differences in the thermophysical properties cause distortions, cracking, improper dilution, and numerous weld imperfections, having an adverse effect on strength. Laser beam as a high concentration energy source is an alternative welding method for highly conductive metals, with significant improvement in productivity, compared to conventional joining processes. It may provide lower heat input and reduce the thickness of the IMC layer. The laser beam can be combined with arc-forming hybrid processes for wider control over thermal cycle. Apart from the IMC layer thickness, there are many other factors that have a strong effect on the weld integrity; their optimisation and innovation is a key to successfully delivering high-quality joints.

show abstract

“…Four tab-to-busbar combinations were selected for this intermetallic analysis to study the and can be attributed to the large difference in the thermal expansion coefficients of aluminium (24×10 -6 °C-1 ) and copper (16×10 -6 °C-1 ). The characteristic of fast heating and cooling of laser welding easily generates stresses which cause solidification cracks [51]. No micro-cracks were visible in the cross-section of Al tab to Cu busbar weld (Fig.…”

Section: Imcs Studymentioning

confidence: 99%

“…The metals like nickel and copper the difference in atomic size is about 2.7% and has the same crystal structure, which is FCC, and show complete solid solubility [52]. In the research of Yan et al [51], an in-depth IMCs study was conducted for the dissimilar joint consists of 6061 aluminium and 110 coppers with a Ni interlayer, and they were not found any phase between Ni-Cu. Also, Shamsolhodaei et al [55] were studied the laser welding NiTi-copper, and they weren't found any IMCs phases related to Ni-Cu.…”

Section: Imcs Studymentioning

confidence: 99%

In-depth evaluation of laser-welded similar and dissimilar material tab-to-busbar electrical interconnects for electric vehicle battery pack

Kumar

Masters

Das

2021

Journal of Manufacturing Processes

View full text Add to dashboard Cite

Influence of Ni interlayer on microstructure and mechanical properties of laser welded joint of Al/Cu bimetal

Cited by 29 publications

References 29 publications

A Review: Laser Welding of Dissimilar Materials (Al/Fe, Al/Ti, Al/Cu)—Methods and Techniques, Microstructure and Properties

A Review: Laser Welding of Dissimilar Materials (Al/Fe, Al/Ti, Al/Cu)—Methods and Techniques, Microstructure and Properties

A Review on Laser-Assisted Joining of Aluminium Alloys to Other Metals

In-depth evaluation of laser-welded similar and dissimilar material tab-to-busbar electrical interconnects for electric vehicle battery pack

Contact Info

Product

Resources

About