Laser welding of ultra-high strength steels for automotive applications

2008 ◽  
Author(s):  
Steve Shi ◽  
Steve Westgate
Keyword(s):  
Laser Welding ◽  
High Strength Steels ◽  
High Strength ◽  
Automotive Applications ◽  
Ultra High Strength Steels

Corrosion response of ultra-high strength steels used for automotive applications

2019 ◽  
Vol 6 (8) ◽  
pp. 0865a6 ◽  
Author(s):  
Husnu Gerengi ◽  
Nuri Sen ◽  
Ilyas Uygur ◽  
Moses M Solomon
Keyword(s):  
High Strength Steels ◽  
High Strength ◽  
Automotive Applications ◽  
Ultra High Strength Steels

Laser welding of ultra high strength steels

2003 ◽  
Vol 100 (10) ◽  
pp. 1015-1022
Author(s):  
G. Restrepo Garcés ◽  
P. Verrier ◽  
O. Glaise ◽  
S. Boidin
Keyword(s):  
Laser Welding ◽  
High Strength Steels ◽  
High Strength ◽  
Ultra High Strength Steels

scholarly journals The galvanic corrosion of welded ultra-high strength steels used for automotive applications

2018 ◽  
Vol 136 ◽  
pp. 366-373 ◽  
Author(s):  
N. Wint ◽  
J. Leung ◽  
J.H. Sullivan ◽  
D.J. Penney ◽  
Y. Gao
Keyword(s):  
Galvanic Corrosion ◽  
High Strength Steels ◽  
High Strength ◽  
Automotive Applications ◽  
Ultra High Strength Steels

Texture analysis and joint performance of laser-welded similar and dissimilar dual-phase and complex-phase ultra-high-strength steels

2021 ◽  
Vol 174 ◽  
pp. 111035
Author(s):  
Ajit Kumar Pramanick ◽  
Hrishikesh Das ◽  
Ji-Woo Lee ◽  
Yeyoung Jung ◽  
Hoon-Hwe Cho ◽  
...  
Keyword(s):  
Texture Analysis ◽  
High Strength Steels ◽  
High Strength ◽  
Dual Phase ◽  
Complex Phase ◽  
Joint Performance ◽  
Ultra High Strength Steels

Selection and use of coated advanced high-strength steels for automotive applications

2004 ◽  
Vol 101 (7-8) ◽  
pp. 551-558 ◽  
Author(s):  
R. Bode ◽  
M. Meurer ◽  
T. W. Schaumann ◽  
W. Warnecke
Keyword(s):  
High Strength Steels ◽  
High Strength ◽  
Automotive Applications ◽  
Advanced High Strength Steels

scholarly journals Laser Welding Dissimilar High-Strength Steel Alloys with Complex Geometries

Metals ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 792 ◽  
Author(s):  
Panos Efthymiadis ◽  
Khalid Nor
Keyword(s):  
Carbon Steel ◽  
Laser Welding ◽  
Cross Sections ◽  
High Carbon Steel ◽  
High Strength Steels ◽  
High Strength ◽  
Low Carbon ◽  
High Carbon ◽  
Material Chemistry ◽  
Metallurgical Defects

Laser welding of dissimilar high-strength steels was performed in this study for two different geometries, flat and circular samples with material thicknesses of 5 and 8 mm. The material combinations were a low carbon to a medium or high carbon steel. Three different welding systems were employed: a Nd:YAG, a CO2 and a fiber laser. The process stability was evaluated for all the experiments. The resulting full penetration welds were inspected for their surface quality at the top and bottom of the specimens. Cross sections were taken to investigate the resulting microstructures and the metallurgical defects of the welds, such as cracks and pores. Significant hardening occurred in the weld region and the highest hardness values occurred in the Heat Affected Zone (HAZ) of the high carbon steel. The occurrence of weld defects depends strongly on the component geometry. The resulting microstructures within the weld were also predicted using neural network-simulated Continuous Cooling Transformation (CCT) diagrams and predicted the occurrence of a mixture of microstructures, such as bainite, martensite and pearlite, depending on the material chemistry. The thermal fields were measured with thermocouples and revealed the strong influence of component geometry on the cooling rate which in term defines the microstructures forming in the weld and the occurring hardness.

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