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Single Point Incremental Forming (SPIF) of Stainless Steel 304 Quilted, Laser Welded Blanks

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Abstract:

Tailor welded blanks (TWB) are commonly used in the automotive industry to achieve heterogeneous components, particularly for creating high strength, lightweight parts. Laser welding is one method for joining TWB. Laser welding was used to create TWB composed of stainless steel 304L, with varied thicknesses, in a “patchwork quilt” pattern forming quadrants within the sample. The mechanical properties and quality of the weld were evaluated via tensile testing and microscopy. Truncated pyramids were then formed with weld seams along the faces, and springback and mechanical properties after forming were analyzed. Optical microscopy revealed that the weld seams remained intact after forming. The weld seam location in the center of the pyramid walls did not have a significant impact on the geometrical accuracy of the formed parts. The results of this study show promise for the use of SPIF with quilted TWB to achieve optimal formed part properties for the intended part application.

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Periodical:

Solid State Phenomena (Volume 389)

Pages:

243-252

DOI:

https://doi.org/10.4028/p-fKT3xg

Citation:

Cite this paper

Online since:

April 2026

Authors:

Elizabeth Mamros*, Derek Shaffer, Ihab Ragai, Austin Clark

Keywords:

Incremental Forming, Laser Welding, Sheet Metal, Springback, Tailor Welded Blanks

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Creative Commons CC BY 4.0

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* - Corresponding Author

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