A study on tensile shear characteristics for weld-bonded 1.2GPa grade TRIP steels with changes in nugget diameter for automotive body application

Choi, In Soo; Park, Jiyoun; Kim, Jae-Won; Kang, Minjung; Kim, Dongcheol; Kim, Junki; Park, Yeong-Do

doi:10.5781/jwj.2015.33.2.69

Cited by 4 publications

(1 citation statement)

References 11 publications

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“…The HSS and UHSS specimens were subject to bond joining, [1][2] plug joining, [3] resistance spot welding, [3][4][5][6][7][8] and self-piercing rivet joining [9][10][11][12][13]. The bond joining [14,15] was performed by debonding the specimens and applying the original two-component panel adhesive supplied by the H vehicle manufacturer.…”

Section: B 22 Methodsmentioning

confidence: 99%

Study on Stress Depending on HSS Panel Joint Method in Automobiles

Lee¹

2021

TURCOMAT

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A vehicle to which a body panel reinforced by repairing an automobile body is applied must be welded or joined by a method suitable for the panel material so as to prevent corrosion of the panel and ensure rigidity of the body structure. As a result of studying the stress by the joining method of HSS and UHSS panels, it was confirmed that the welding method was performed in parallel and the joining method was superior to the simple joining method from the tensile stress strength. In addition, spot welding and post-bonding rivets were used as an efficient joining method that can minimize the deformation of the material properties of the vehicle body panel, prevent corrosion, and maximally maintain the rigidity of the vehicle body structure..

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Section: B 22 Methodsmentioning

confidence: 99%

Study on Stress Depending on HSS Panel Joint Method in Automobiles

Lee¹

2021

TURCOMAT

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A Study on Tensile Shear Characteristics of Dissimilar Joining Between Pre-coated Automotive Metal Sheets and Galvanized Steels with the Self-Piercing Rivet and Hybrid Joining

배¹,

김²,

최³

et al. 2016

Journal of Welding and Joining

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The automotive manufactures increase their use of lightweight materials to improve fuel economy and energy usage has a significant influence on the choice of developing materials. To meet this requirements manufacturers are replacing individual body parts with lightweight metals, for these the process treating and painting surfaces is changing. The pre-coated steels are newly developed to avoid the conventional complex and non-environmental painting process in the body-in-white car manufacturing. The development of new joining techniques is critically needed for pre-coated steel sheets, which are electrically non-conductive materials. In the present study, dissimilar combination of pre-coated steel and galvanized steel sheets were joined by the self-piercing rivet, adhesive bonding and hybrid joining techniques. The tensile shear test and free falling high speed crash test were conducted to evaluate the mechanical properties of the joints. The highest tensile peak load with large deformation was observed for the hybrid joining process which has attained 48% higher than the self-piercing rivet. Moreover, the hybrid and adhesive joints were observed better strain energy compared to self-piercing rivet. The fractography analyses were revealed that the mixed mode of cohesive and interfacial fracture for both the hybrid and adhesive bonding joints.

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