Hot stamping of ultra high strength steels

Hot stamping is a novel process to produce ultra high strength automobile components without any spring back. Simultaneous forming and quenching of the hot blanks after austenization result in fully martensitic microstructures in the final products. Austenization treatment of the blanks, transferring the hot blanks from he furnace to the tools and simultaneous forming and rapid cooling in the die are the main steps during hot stamping process. Many car manufacturers have been focused on hot stamping to produce various ultra high strength components so that decreasing the weight as well as increasing safety of the cars. 22MnB5 boron alloyed steel is the common steel which is used by hot stamping. The mentioned steel has acceptable hardenability and produces fully lath martensitic microstructure after hot stamping. The yield strength and the ultimate tensile strength after hot stamping are increased to approximately 1000 MPa and 1500 MPa, respectively. The main objectives of the present research were based on: Development of a laboratory set up for simulating hot stamping process, Investigation on different steel grades with respect to their mechanical properties after hot stamping, Numerical simulation of the hot stamping process.

Grantor dc:publisher

Publikationsserver der RWTH Aachen University

Year dc:date

2007

Author dc:creator

• Naderi, Malek

Contributors dc:contributor

• Bleck, Wolfgang

• info:eu-repo/classification/ddc/620
• Presshärten
• Ingenieurwissenschaften
• hot stamping

Statement dc:rights

• info:eu-repo/semantics/openAccess

Language dc:language

eng

Identifier

https://publications.rwth-aachen.de/search?p=id:%22RWTH-CONV-112497%22

OAI record oai:identifier

https://publications.rwth-aachen.de/oai2d?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Apublications.rwth-aachen.de%3A49929