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Characteristics of ultrasonic spot welding of Cu/Ni dissimilar metals

Journal Article


Abstract


  • With increasing clamping pressure, the bond density increases, the effective thickness decreases, and the plastic deformation at the Cu side near the welding interface regions below the sonotrode tip peak and valley increases; the maximum lap shear tensile load is obtained at the clamping pressure of 0.5 MPa. In the case of the Cu/Ni joint prepared at the clamping pressure of 0.5 MPa, evident mutual diffusion and nanoscale wave-like pattern appear in the Cu/Ni interfacial area, bonding between Cu and Ni sheets is formed by the interdiffusion of the parent elements. Plastic strain distribution and temperature on weld cross-section were simulated employing finite element analysis.

Publication Date


  • 2021

Citation


  • Ni, Z. L., Liu, Y., Li, H., Wang, Y. H., Cui, D. T., Peng, J., . . . Ye, F. X. (2021). Characteristics of ultrasonic spot welding of Cu/Ni dissimilar metals. Science and Technology of Welding and Joining, 26(7), 529-539. doi:10.1080/13621718.2021.1967013

Scopus Eid


  • 2-s2.0-85112706300

Web Of Science Accession Number


Start Page


  • 529

End Page


  • 539

Volume


  • 26

Issue


  • 7

Place Of Publication


Abstract


  • With increasing clamping pressure, the bond density increases, the effective thickness decreases, and the plastic deformation at the Cu side near the welding interface regions below the sonotrode tip peak and valley increases; the maximum lap shear tensile load is obtained at the clamping pressure of 0.5 MPa. In the case of the Cu/Ni joint prepared at the clamping pressure of 0.5 MPa, evident mutual diffusion and nanoscale wave-like pattern appear in the Cu/Ni interfacial area, bonding between Cu and Ni sheets is formed by the interdiffusion of the parent elements. Plastic strain distribution and temperature on weld cross-section were simulated employing finite element analysis.

Publication Date


  • 2021

Citation


  • Ni, Z. L., Liu, Y., Li, H., Wang, Y. H., Cui, D. T., Peng, J., . . . Ye, F. X. (2021). Characteristics of ultrasonic spot welding of Cu/Ni dissimilar metals. Science and Technology of Welding and Joining, 26(7), 529-539. doi:10.1080/13621718.2021.1967013

Scopus Eid


  • 2-s2.0-85112706300

Web Of Science Accession Number


Start Page


  • 529

End Page


  • 539

Volume


  • 26

Issue


  • 7

Place Of Publication