Fatigue strength of TIG-dressed ultra-high-strength steel fillet weld joints at high stress ratio

2017 ◽  
Vol 94 ◽  
pp. 110-120 ◽  
Author(s):  
T. Skriko ◽  
M. Ghafouri ◽  
T. Björk
Keyword(s):  
Fatigue Strength ◽  
High Strength Steel ◽  
Stress Ratio ◽  
High Stress ◽  
High Strength ◽  
Fillet Weld ◽  
Weld Joints ◽  
Ultra High Strength Steel

Rotation capacity of fillet weld joints made of high-strength steel

2014 ◽  
Vol 58 (6) ◽  
pp. 853-863 ◽  
Author(s):  
T. Björk ◽  
T. Penttilä ◽  
T. Nykänen
Keyword(s):  
High Strength Steel ◽  
High Strength ◽  
Fillet Weld ◽  
Weld Joints ◽  
Rotation Capacity

scholarly journals Review of Shearing Processes of High Strength Steel Sheets

2020 ◽  
Vol 4 (2) ◽  
pp. 54 ◽  
Author(s):  
Ken-ichiro Mori
Keyword(s):  
Fatigue Strength ◽  
High Strength Steel ◽  
High Strength ◽  
Steel Sheets ◽  
Sheared Edge ◽  
Ultra High Strength Steel ◽  
Edge Quality ◽  
Automobile Parts

Shearing processes of high strength steel sheets increasingly applied to lightweight automobile parts were reviewed. With the increase in strength of the high strength steel sheets, shearing operations become hard. First, the sheared edge quality in shearing of high strength steel sheets and the effects on the formability and fatigue strength were shown. Next, ironing processes with a taper punch and a punched slug, a slight clearance punching with a punch having a small round corner and a thickening process of the sheared edge were explained as processes for improving the sheared edge quality. Finally, hydrogen-induced delayed fractures of cold-sheared ultra-high strength steel sheets and of hot-trimmed parts were evaluated.

Fatigue strength characterization of high and ultra-high-strength steel cut edges

2021 ◽  
Vol 228 ◽  
pp. 111544
Author(s):  
Kalle Lipiäinen ◽  
Antti Ahola ◽  
Tuomas Skriko ◽  
Timo Björk
Keyword(s):  
Fatigue Strength ◽  
High Strength Steel ◽  
High Strength ◽  
Ultra High Strength Steel ◽  
Strength Characterization
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