Tool Steel Solutions for In-Die Trimming and Punching of Modern Light Weight Parts Produced via Hot Stamping

DOI

10.2991/978-94-6463-114-2_37How to use a DOI?

Keywords

Tool steel; Aluminium; Hybrid parts; Hot stamping; In-die trimming; Hot punching; Cold punching

Abstract

The continuous changes of the hot stamping industries demands lead to challenges in the material selection of produced parts and therefore also in the selection of proper tool steels. Improvement of complex lightweight constructions of sheet material puts high demands on the materials themselves and the production processes. The continuing improvement of complex lightweight constructions of sheet material puts high demands on the materials themselves and the production processes. Tool steel still plays a major role when it comes to the issue of tool life enhancement. In addition to thermal stresses, abrasion and adhesive wear are also crucial factors, which influence the material. Considering these aspects, the topic of the hot- and cold punching of 22MnB5 sheet material was analysed in order to evaluate adequate tool steel selections. In addition to the determination of optimum punch geometry and cutting clearance, the abrasive wear behaviour of punches was evaluated via a continuous stroke test. It could be proven that the electro-slag re-melted tool steel BÖHLER K340 ISODUR or the powder metallurgical steel BÖHLER S390 MICROCELAN are suitable for this kind of application and can withstand its high mechanical loads. The implementation of laboratory results in practice is demonstrated by means of industrial application examples. Furthermore, this paper deals with the appropriate selection of high performance tool steels for different types of hot stamping processes and the production of not only manganese and boron alloyed steels, but also aluminium and hybrid parts.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - C. Oberroither
AU  - G. Jesner
PY  - 2023
DA  - 2023/03/02
TI  - Tool Steel Solutions for In-Die Trimming and Punching of Modern Light Weight Parts Produced via Hot Stamping
BT  - Proceedings of the 6th International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2022)
PB  - Atlantis Press
SP  - 272
EP  - 277
SN  - 2590-3217
UR  - https://doi.org/10.2991/978-94-6463-114-2_37
DO  - 10.2991/978-94-6463-114-2_37
ID  - Oberroither2023
ER  -