Author： Yang Jingwei Cao Biao Lu Qinghua
Publisher： MDPI
E-ISSN： 1996-1944|10|2|193-193
ISSN： 1996-1944
Source： Materials, Vol.10, Iss.2, 2017-02, pp. : 193-193
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
The effects of welding energy on the mechanical and microstructural characteristics of ultrasonic-welded pure copper plates were investigated. Complex dynamic recrystallization and grain growth occurred inside the weld zone during ultrasonic welding. At a low welding energy, a thin band of straight weld interfaces was observed and had an ultra-fine grain structure. With an increase in welding energy, the weld interface progressively changed from flat to sinusoidal, and eventually turned into a convoluted wavy pattern, bearing similarities to shear instabilities, as observed in fluid dynamics. The lap shear load of the joints initially increased and then remained stable as the welding energy increased. The tensile characteristics of the joints significantly depended on the development of plastic deformation at the interface. The influence of the microstructure on the hardness was also discussed.
Related content
Access to resources
Recommend
Effects of Annealing Process on Mechanical Properties of Weather-Resistant Steel Welding Joints
Key Engineering Materials, Vol. 2018, Iss. 777, 2018-10 ,pp. :
Access to resources
By Borba Natascha Z. Afonso Conrado R. M. Blaga Lucian dos Santos Jorge F. Canto Leonardo B. Amancio-Filho Sergio T.
Materials, Vol. 10, Iss. 2, 2017-02 ,pp. :