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HomeDevelopment of energy-efficient press hardening processes based on innovative sheet and tool steel alloys and thermo-mechanical process routes (effiPRESS)
Final report
Publication metadata
The main objective of the effiPRESS project was to demonstrate the performance of high efficient and cost effective press hardening processes for sheet and tubular components by implementation of new steel sheet and tool materials with improved technological properties. The new Docol 2000 steel featuring a tensile strength of 2000 MPa was characterised and its press hardening process window was determined. As reference for this evaluation, the commercially established Docol 1800 was considered. New High Thermal Conductivity tool Steels (HTCS), designated as HTCS®-23xx and HTCS®-26xx-.2, which could feature very high thermal conductivity values and hardness levels, were developed and implemented for the manufacture of the die tools with integrated optimised cooling systems. The characterisation was specially focussed on fundamental aspects such as the microstructure, the mechanical and thermal properties. Moreover, the investigated steels were thermomechanically characterised in relation to their hot forming behaviour by conventional and non-conventional test methods and standards under typical press hardening conditions. The cost-to-benefit advantages of this new steel grades were demonstrated by the design and manufacturing of sheet and tubular close-toproduction prototypes. The Hot Metal Gas Forming (HMGF) technology was integrated in the press hardening process to manufacture the tubular components. The sheet and tube workflows were supported by forming finite element simulations. Both process chains were also energetically evaluated with help of a methodology based on energy and material balancing. This report provides a technological guideline for the production of press hardened parts and tools made of these new developed press hardening steels.
- Published:
- Corporate author(s): Directorate-General for Research and Innovation (European Commission)
- Personal author(s): Meza García, Enrique ; Bach, Mirko ; Werner, Markus ; Mašek, Bohuslav ; Opatová, Kateřina ; Calvo Muñoz, Jessica ; Cabrera Marrero, José María ; Olsson, Gustav ; Müller, Thomas ; Val Andrés, Diego ; Padré, Andrea ; Hamasaiid, Anwar ; Degenkolb, Lars
- Themes: Industrial research and development
- Subject: applied research , innovation , metalworking , physical process , research report , steel , technological process , thermodynamics
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| ISSN 1831-9424 | ISBN 978-92-76-27857-3 | DOI 10.2777/588440 | Catalogue number KI-NA-30-544-EN-N |
- Released on EU publications website:
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