A review on the laser welding of coated 22MnB5 press-hardened steel and its impact on the production of tailor-welded blanks

A tailor welded blank (TWB) includes two or more blanks joined together in order to make a single blank. Different welding methods are used to join blanks with different characteristics and form TWBs. In this study, a comparison is made among the effects of three different welding methods namely CO2 laser welding, friction stir welding (FSW), and friction stir vibration welding (FSVW) on mechanical and formability properties of developed TWBs. AA6061 alloy sheets with different thicknesses (1.2 and 0.8 mm) are joined to get TWBs. The forming limit diagram (FLD) and limiting dome height (LDH) are applied to assess the formability. The Taguchi method is applied to find the optimum values of welding parameters. It is concluded that TWBs made by FSVW have higher mechanical properties and formability compared to TWBs made by FSW and CO2 laser welding. The results also indicate that FLD for TWBs made by FSW is higher than FLD for TWBs made by CO2 laser welding and FLD0, for TWBs made by FSVW, increases as vibration frequency increases.

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Laser welding for hot-stamped tailor-welded blanks with high-strength steel/high-energy absorption steel

International Congress on Applications of Lasers & Electro-Optics ◽

10.2351/1.5062945 ◽

2013 ◽

Author(s):

Minjung Kang ◽

Cheolhee Kim*

Keyword(s):

Laser Welding ◽

Energy Absorption ◽

High Strength Steel ◽

High Strength ◽

High Energy ◽

Tailor Welded Blanks ◽

High Energy Absorption

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Yb:YAG laser welding of TRIP780 steel with dual phase and mild steels for use in tailor welded blanks

Materials & Design (1980-2015) ◽

10.1016/j.matdes.2009.04.033 ◽

2009 ◽

Vol 30 (10) ◽

pp. 4146-4155 ◽

Cited By ~ 44

Author(s):

Rajashekhar S. Sharma ◽

Pal Molian

Keyword(s):

Laser Welding ◽

Dual Phase ◽

Tailor Welded Blanks

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Effect of Laser Welding Parameters on Forming Behavior of Tailor Welded Blanks

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.445.406 ◽

2012 ◽

Vol 445 ◽

pp. 406-411 ◽

Cited By ~ 2

Author(s):

R. Safdarian Korouyeh ◽

Hassan Moslemi Naeini ◽

M.J. Torkamany ◽

J. Sabaghzadee

Keyword(s):

Laser Welding ◽

Nd:Yag Laser ◽

Dissimilar Materials ◽

Uniaxial Tensile ◽

Welding Parameters ◽

Uniaxial Tensile Test ◽

Tailor Welded Blanks ◽

Weld Properties ◽

Single Sheet

Tailor Welded Blanks (TWB) are blanks in which two or more sheets of similar or dissimilar materials, thicknesses, coatings etc. are welded together to form a single sheet before forming. Forming behavior of TWBs is affected by thickness ratio, strength ratio, weld conditions such as weld properties, weld orientation, weld location etc. In this work, Nd:YAG laser welding will be use to weld TWB with different thickness in experimental test. Nd:YAG laser welding parameters such as pulse duration, welding velocity, frequency and peak power will affect formability of TWBs. Taguchis design of experiments methodology is followed to design of experiment and obtain the percentage contribution of factors considered. Erichsen formability test and uniaxial tensile test (ASTM-E8) will be use in experiment setup to compare result of different welding parameters on formability quality of TWBs.

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