Numerical and Experimental Investigation on Hot Stamping of Ultra-High Strength Steel

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Abstract:

In the automotive industry, hot stamping of ultra-high strength steel offers the possibility to reduce vehicle weight and enhance safety performance. However, the imperfect technology restricts its application. To investigate the hot stamping technology further, numerical simulation and forming experiment were made in this paper with a door beam as an example. After process parameters analysis, the evolution of sheet during the whole process were predicted through the simulation, according which the microstructure of the part were full martensite and no fracture was produced. A door beam was well-formed in the experiment based on the results of simulation, and then a series of tests as metallographic observation, hardness test, tensile test and side impact test were carried out, studying its performance in practice.

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Periodical:

Advanced Materials Research (Volumes 941-944)

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1720-1725

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June 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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