This paper will describe an investigation of the formability of high strength steel (HSS) laser welded blanks (LWBs). Anticipated combinations of thickness and steel grades, including high strength low alloy (HSLA) and dual phase (DP) steels were selected. The blanks were characterized through chemical analysis and mechanical testing, as well as microstructural analysis of the weld. Samples were strained in a limiting dome height tester. Weld line movement, dome height and strain at failure were then measured. Data from these tests resulted in development of forming limit diagrams, and allowed correlation of weld line movement to forming conditions. In part, the results showed that the presence of the weld has a negative influence on formability, and that balancing the load carrying capacity of each side of the blank results in minimum weld line movement in the blanks.
Formability Analysis of High Strength Steel Laser Welded Blanks
Sae Technical Papers
SAE 2005 World Congress & Exhibition ; 2005
2005-04-11
Conference paper
English
Formability analysis of high strength steel laser welded blanks
Automotive engineering | 2005
|2005-01-1326 Formability Analysis of High Strength Steel Laser Welded Blanks
British Library Conference Proceedings | 2005
|Press formability of laser welded blanks
Tema Archive | 1990
|Stretch Formability Of Laser Welded Blanks
British Library Conference Proceedings | 1997
|Formability of steel and aluminium tailor welded blanks
Tema Archive | 2007
|