Comparison between two tailored press hardening technologies by means of physical and numerical simulation
Maria Emanuela Palmieri, Luigi Tricaricodownload PDF
Abstract. Tailored Tool Tempering (TTT) and Intermediate Pre-Cooling techniques are two tailored press hardening technologies studied for automotive applications to obtain structural components with good energy absorption characteristics and high strength. The aim of this work is the comparison between these two tailored technologies in terms of mechanical properties on the part. An automotive B-Pillar in 22MnB5 steel was considered as case study. Two Finite Element (FE) models were developed for simulating both technologies. FE thermal cycles were experimentally reproduced on specimens using a Gleeble physical simulator. After physical simulation, metallographic, tensile and hardness tests were carried out to evaluate the mechanical properties. Optimal values of process parameters that guarantee ductile and resistant zones on the same component were detected. In these optimal conditions, the TTT technology guarantees greater fracture deformability in the component zone which is to absorb energy.
Sheet Forming, Automotive, Tailored Properties
Published online 9/5/2023, 8 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Maria Emanuela Palmieri, Luigi Tricarico, Comparison between two tailored press hardening technologies by means of physical and numerical simulation, Materials Research Proceedings, Vol. 35, pp 45-52, 2023
The article was published as article 6 of the book Italian Manufacturing Association Conference
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