Abstract
Automobile manufacturers using tailor welded blank (TWB) technology carryout forming operations for curved shape components by orienting multiple welds. This process results in the formation of inflection point at the welded joints, leading to fracture during forming. The study of the effect of curvilinear weld profile on formability aspects with regard to stamping/deep drawing operations is limited. Curvilinear welds decrease the number of weld requirements, scrap material and avoid imperfections whenever two welds intersect. In this work, the effect of different shapes of weld profiles viz. circular, elliptical and spline shapes on the weld line movement (WLM) was studied. WLM is one of the primary concerns in the manufacture of tailor welded blanks, because it affects component assembly and also leads to wrinkling and tearing during forming. Simulation results showed that the spline curve weld profile has a considerable effect in reducing WLM with improved formability compared to straight welds.
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Acknowledgements
The authors express gratitude to JNTU Hyderabad, Telangana, India for arranging funds under collaborative research scheme to carry out this research work with Project No. JNTUH/TEQIP-III/CRS/2019/MECH/06 under TEQIP-III project in the year 2019.
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Arjula, S., Satya Suresh, V.V.N., Regalla, S.P. (2022). Effect of Curvilinear Weld Profile Shapes on Weld Line Movement in the Stamping of Tailor Welded Blanks. In: Natarajan, S.K., Prakash, R., Sankaranarayanasamy, K. (eds) Recent Advances in Manufacturing, Automation, Design and Energy Technologies. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-16-4222-7_18
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