Comparison between two tailored press hardening technologies by means of physical and numerical simulation

Comparison between two tailored press hardening technologies by means of physical and numerical simulation

Maria Emanuela Palmieri, Luigi Tricarico

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.

Keywords
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

DOI: https://doi.org/10.21741/9781644902714-6

The article was published as article 6 of the book Italian Manufacturing Association Conference

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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