Multistage Eccentric Rotary Swaging
| Autor: | Christian Schenck, Hans-Werner Zoch, Bernd Kuhfuss, Anastasiya Toenjes, A. von Hehl, Svetlana Ishkina |
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| Rok vydání: | 2018 |
| Předmět: |
Austenite
Materials science Swaging Metallurgy Metals and Alloys Recrystallization (metallurgy) 02 engineering and technology Work hardening 021001 nanoscience & nanotechnology Microstructure Industrial and Manufacturing Engineering Forging 020303 mechanical engineering & transports 0203 mechanical engineering Materials Chemistry Eccentric 0210 nano-technology Material properties |
| Zdroj: | HTM Journal of Heat Treatment and Materials. 73:344-351 |
| ISSN: | 2194-1831 1867-2493 |
| DOI: | 10.3139/105.110372 |
| Popis: | Material properties like yield stress and hardness change during forming. Metastable austenitic steels are characterized by an elevated work hardening potential due to strain-induced transformation of austenite into martensite especially by multi-stage processing. An application of a new rotary swaging process design with Eccentric Flat Shaped Dies (EFSD) enables a severe shear strain in the workpiece. Eccentric rotary swaging typically provides a helical material flow. According to the process parameters, the microstructure features a typical eddy pattern with a spiral shaped grain orientation. The forming process can be carried out in one or more processing steps. The properties of the formed workpieces can be adjusted both by a variation of the process parameters values and by a specific subsequent heat treatment. This work is focused on microscopic investigations of the microstructure of in one and two steps eccentrically swaged parts with and without subsequent heat treatment. |
| Databáze: | OpenAIRE |
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