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Article

Formability and Weld Zone Analysis of Tailor-Welded Blanks for Various Thickness Ratios

[+] Author and Article Information
L. C. Chan, S. M. Chan, C. H. Cheng, T. C. Lee

Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China

J. Eng. Mater. Technol 127(2), 179-185 (Apr 06, 2005) (7 pages) doi:10.1115/1.1857936 History: Received January 15, 2004; Revised October 15, 2004; Online April 06, 2005
Copyright © 2005 by ASME
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Figures

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A series of specifically designed circular specimens
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Weld line orientation of TWBs
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The deformed tensile specimens of TWBs with different thickness ratios after uniaxial tensile tests
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Tensile strength comparison of TWBs of a thickness ratio of 2 (1.0 mm/0.5 mm) with the base metal of thickness 0.5 and 1.0 mm
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Tensile strength comparison of TWBs of a thickness ratio of 1.67 (1.0 mm/0.6 mm) with the base metal of thickness 0.6 and 1.0 mm
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Tensile strength comparison of TWBs of a thickness ratio of 1.25 (1.0 mm/0.8 mm) with the base metal of thickness 0.8 and 1.0 mm
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Cross section of weld for TWB with 0.5 mm/0.7 mm thickness ratio (×50)
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Microstructure observed in cross section of TWB 1.0 mm/0.8 mm (×100): (a) Weld region near the 1.0 mm base metal side and (b) weld region near the 0.8 mm base metal side
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Vickers’ Hardness tests 8 on TWB 1.0 mm/0.5 mm; magnification of ×100
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Composition of microstructure distribution of TWBs with different thickness ratios
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Some of the formed TWBs with necking or failure
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Failure type of TWB of a thickness ratio of 2
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Comparison of the FLCs of TWBs with 1 mm base metals
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Comparison of the FLCs of TWBs with 0.7 mm base metal
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Comparison of the FLCs of TWBs with 0.5 mm base metals
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Minimum major strains of TWBs of similar thickness ratios

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