Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/7937
Title: Experimental and theoretical study on the hot forming limit of 22MnB5 steel
Authors: Li, FF
Fu, MW 
Lin, JP
Wang, XN
Keywords: 22MnB5
Formability
Forming limit diagram
Hot stamping
Issue Date: 2014
Publisher: Springer
Source: International journal of advanced manufacturing technology, 2014, v. 71, no. 41730, p. 297-306 How to cite?
Journal: International journal of advanced manufacturing technology 
Abstract: To reveal the effects of forming temperature and blank thickness on the formability of boron steel 22MnB5, which is represented by forming limit diagram, the hot forming limit experiments and B-pillar hot stamping simulations are conducted. Combined with air cooling test, the forming limit diagrams of boron steels with different blank thicknesses of 1.8, 1.6, and 1.4 mm and forming temperatures of 800, 700, and 600 C are established. The relationships between the formability and the crystal structure of steel, the forming limit diagram, and the effect of blank thickness and forming temperature on the formability of boron steel are extensively investigated. A model for prediction of hot forming limit of 22MnB5 steel before the occurrence of phase transformation induced by cooling based on Oh's ductile fracture criterion and Logan-Hosford yield criterion is derived and verified by experiments. The research thus provides an in-depth understanding of the formability of 22MnB5 steel for its process determination and process parameter configuration in industries.
URI: http://hdl.handle.net/10397/7937
ISSN: 0268-3768
EISSN: 1433-3015
DOI: 10.1007/s00170-013-5468-x
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