... results in poor weld toughness and a high risk of interfacial fracture (IF), posing challenges to the resistance spot welding (RSW) process. Introducing an external magnetic field in the welding process to perform electromagnetic stirring (EMS), the magnetically assisted RSW (MA-RSW) process has been...

...Lin Deng; Tianle Lv; Yongbing Li; Wayne Cai; Amberlee S. Haselhuhn; Blair E. Carlson; Michael P. Balogh; Daad Haddad Resistance spot welding of aluminum alloys (Al RSW) is known to be very challenging, in part due to the undesirable and hard-to-predict asymmetric growth of the weld nugget...

...Shiping Zhang; Ali Ghatei-Kalashami; Abdelbaset R. H. Midawi; Norman Y. Zhou To accurately model the resistance spot welding (RSW) joint in finite element analysis (FEA), the constitutive behavior of materials in various weld regions such as heat-affected zone (HAZ) should be measured. Due...

...Cheng Luo; Yansong Zhang; Michael Oelscher; Yandong Shi; Niels Pasligh; Raphael Koch Application of maraging steels via selective laser melting process in the automotive industry was unavoidably involved in the resistance spot welding with conventional steels. Due to the rapid cooling rate...

...Shenghan Guo; Dali Wang; Jian Chen; Zhili Feng; Weihong “Grace” Guo Resistance spot welding (RSW) is a widely adopted joining technique in automotive industry. Recent advancement in sensing technology makes it possible to collect thermal videos of the weld nugget during RSW using an infrared (IR...

...Ruiming Chen; Ming Lou; YongBing Li; Blair E. Carlson For the automotive industry, it is important to predict the fracture mode of resistance spot-welded joints. Traditional 4t 0.5 (where t is the sheet thickness) criterion for the transition from interfacial fracture (IF) to button pullout...

...Yan Shen; Yu-Jun Xia; Huan Li; Lang Zhou; Yong-Bing Li; Hai-Tao Pan Welding expulsion is a common problem in the resistance spot welding (RSW) process, which severely impacts weld quality and surrounding facilities. Existing expulsion control strategies are ineffective for complex and changeable...

...Yu-Jun Xia; Yan Shen; Lang Zhou; Yong-Bing Li Weld expulsion is one of the most common welding defects during the resistance spot welding (RSW) process, especially for high strength steels (HSS). In order to control and eventually eliminate weld expulsion in production, accurate assessment...

...Lin Deng; YongBing Li; Wayne Cai; Amberlee S. Haselhuhn; Blair E. Carlson Resistance spot welding (RSW) of aluminum–aluminum (Al–Al) is known to be very challenging, with the asymmetric growth of the weld nugget often observed. In this article, a semicoupled electrical–thermal–mechanical finite...

...S. Bag; C. DiGiovanni; X. Han; N. Y. Zhou Liquid metal embrittlement (LME) is one of the severe problems of Zn-coated steel in resistance spot welding (RSW). Hence, proper welding schedules for Zn-coated steel are of practical interest. RSW involves a complex interaction between electrical, thermal...

..., resistance spot welding (RSW) process of 1.25 mm thick dual-phase steel DP780 with and without the external magnetic field applied has been experimentally investigated. Impacts of the EMS method on nugget appearance, quasi-static performance, fatigue life, and fracture morphology have been systematically...

...YongBing Li; ZhongQin Lin; Qi Shen; XinMin Lai Resistance spot welding (RSW) is a very complicated process involving electromagnetic, thermal, fluid flow, mechanical, and metallurgical variables. Since weld nugget area is closed and unobservable using experimental means, numerical methods...

... fatigue life. It can be concluded that applying forging force appropriately has a positive effect on the fatigue strength of resistance spot welded joints. 20 10 2005 03 07 2006 forge welding spot welding aluminium alloys finite element analysis internal stresses fatigue cracks...

... wave forms have showed slightly better agreement with the corresponding measured weld dimensions. 05 06 2005 02 12 2005 spot welding finite element analysis welds welding equipment resistance spot welding instantaneous current wave form AC and DC welding machines numerical...