Browse Publications Technical Papers 2003-01-1151
2003-03-03

Stretch Bendability of Advanced High Strength Steels 2003-01-1151

Bending under tension is an important deformation mode during stamping and has been observed to limit achievable ductility for high strength steels. This paper presents experimental results from Angular Stretch Bend (ASB) testing, which has been used to characterize bending under tension behavior for several conventional, advanced high strength steels and ultra-high strength steels. Steels that were studied include Bake Hardenable steels, High Strength Low Alloy (HSLA) steels, Dual Phase (DP) steels, Transformation Induced Plasticity (TRIP) steels, and tempered martensitic steels. Failure heights were determined under sample lockout conditions for different punch radii. By comparing absolute formability measured by the failure height, the results can be used to provide material formability ranking for different R/t ratios. In addition, strain distributions were analyzed to provide bending under tension forming limits for the different steel grades. This information will be useful in the development of die design and processing strategies for high strength sheet steels.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Experimental and Numerical Studies of Crash Trigger Sensitivity in Frontal Impact

2005-01-0355

View Details

TECHNICAL PAPER

Development of High Strength Steel Sheet with Excellent Stretch Flange Formability for Automobile Application

940943

View Details

TECHNICAL PAPER

Modeling Energy Absorption and Deformation of Multicorner Columns in Lateral Bending

2006-01-0123

View Details

X