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The requirement of increased strength with reduced weight in the automotive industry has given the opportunity for researchers to develop/design new materials and structures. Tailor-welded blank (TWB) is one of the promising manufacturing strategies to meet such conflicting requirements. In the present study, TWB of CRCA steel with different thickness combinations was fabricated using the laser welding technique. An assessment of the weld quality was done using metallographic studies and tensile tests. The ductility of the welded joint was found to be reduced by 83%, and the hardness was increased by 133% in comparison to the base metal. An attempt was made to form a D shape geometry by performing single point incremental forming (SPIF) on TWB. Reduced formability and no weld line movement were the main observations made in this study.

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Single Point Incremental Forming of CRCA-Tailor Welded Sheets

  • 会议论文

  • 发表日期：

    2026年

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  • Yogesh Kumar Dewangan,
  • Ritesh Banjare,
  • Kaushik Bandyopadhyay

摘要

The requirement of increased strength with reduced weight in the automotive industry has given the opportunity for researchers to develop/design new materials and structures. Tailor-welded blank (TWB) is one of the promising manufacturing strategies to meet such conflicting requirements. In the present study, TWB of CRCA steel with different thickness combinations was fabricated using the laser welding technique. An assessment of the weld quality was done using metallographic studies and tensile tests. The ductility of the welded joint was found to be reduced by 83%, and the hardness was increased by 133% in comparison to the base metal. An attempt was made to form a D shape geometry by performing single point incremental forming (SPIF) on TWB. Reduced formability and no weld line movement were the main observations made in this study.