Analyse des Einsatzpotentials walzplattierter MnB-Cr-Stahlverbunde für das Presshärten
Metallurgische, thermische und thermomechanische Behandlung von Werkstoffen
Zusammenfassung der Projektergebnisse
In this project a new type of composite material for press hardening was investigated, which promises environmental and energy benefits during press hardening due to the substituted AlSi coating by roll-bonded cover layers. For this purpose, the required thermos-mechanical material parameters (flow behavior/diffusion properties) for production were determined. Rollbonding solutions were successfully realized for the combination of an austenitic cover layer (X5CrNi18-10) and a boron-manganese core (22MnB5) despite the occurring challenges. In addition, the base materials and the resulting semi-finished product were characterized under application-oriented aspects in the temperature range of forming (600-900 °C). Here, the flow behavior (stress and forming limit changes) during forming is considered and rules for predicting the bond are developed. With numerical calculations and material data, a press hardening tool was developed and manufactured for the production of demonstration parts. Finally, the properties of the demonstrator components were analyzed as a function of the compound composition and the usability of the new semi-finished product was confirmed with regards to hardenability and dimensional accuracy.
Projektbezogene Publikationen (Auswahl)
-
Novel Roll-Bonded Stainless Steel/Boron-Steel Multilayer Under Hot Stamping Conditions. The Minerals, Metals & Materials Series, 2683-2694. Springer International Publishing.
Kamaliev, Mike; Teller, Marco; Löbbe, Christian; Hirt, Gerhard & Tekkaya, A. Erman
-
“Bewertung der Verbundfestigkeit von walzplattierten Chrom-Bor-Stahl-Verbunden zum Presshärten,” in Ideen Form geben: 36. ASK Umformtechnik : 26.-27. Oktober 2022, Eurogress Aachen : Tagungsband, 1st ed. Aachen: Verlagshaus Mainz GmbH, 2022.
M. Stennei & al.
-
“Evaluation of the Bond Strength of Roll Clad Chromium-Boron Steel Composites for Hot Stamping,” Barcelona, 2022.
M. Stennei & al.
-
“Einfluss der Herstellungsroute auf die Umformbarkeit von Cr-Mn-Verbundwerkstoffen für das Presshärten,” 2023.
M. Stennei & al.
-
Material Properties of a Roll-Cladded Steel Composite Designed for Press Hardening With Rapid Heating. CHS² 2024 Proceedings, 53-59. AIST.
Grodotzki, J.; Tekkaya, A. & Stennei, M.
-
“Experimental and Numerical Studies on the Roll Bonding of Manganese/stainless Steel for Press Hardening,” in Proceedings of the 14th International Conference on the Technology of Plasticity - Current Trends in the Technology of Plasticity, 2024
M. M. Acuña & al.
