Investigations on the Influence of Parameters during Electron Beam Surface Hardening Using the Flash Technique
Grafe S, Hengst P, Buchwalder A, Zenker R (2018)
Publication Type: Conference contribution
Publication year: 2018
Journal
Publisher: Institute of Physics Publishing
Book Volume: 373
Conference Proceedings Title: IOP Conference Series: Materials Science and Engineering
Event location: Chemnitz, DEU
DOI: 10.1088/1757-899X/373/1/012019
Abstract
The electron beam hardening (EBH) process is one of today's most innovative industrial technologies. Due to the almost inertia-free deflection of the EB (up to 100 kHz), the energy transfer function can be adapted locally to the component geometry and/or loading conditions. The current state-of-the-art technology is that of EBH with continuous workpiece feed. Due to the large range of parameters, the potentials and limitations of EBH using the flash technique (without workpiece feed) have not been investigated sufficiently to date. The aim of this research was to generate surface isothermal energy transfer within the flash field. This paper examines the effects of selected process parameters on the EBH surface layer microstructure and the properties achieved when treating hardened and tempered C45E steel. When using constant point distribution within the flash field and a constant beam current, surface isothermal energy input was not generated. However, by increasing the deflection frequency, point density and beam current, a more homogeneous EBH surface layer microstructure could be achieved, along with higher surface hardness and greater surface hardening depths. Furthermore, using temperature-controlled power regulation, surface isothermal energy transfer could be realised over a larger area in the centre of the sample.
Involved external institutions
Germany (DE)How to cite
APA:
Grafe, S., Hengst, P., Buchwalder, A., & Zenker, R. (2018). Investigations on the Influence of Parameters during Electron Beam Surface Hardening Using the Flash Technique. In IOP Conference Series: Materials Science and Engineering. Chemnitz, DEU: Institute of Physics Publishing.
MLA:
Grafe, S., et al. "Investigations on the Influence of Parameters during Electron Beam Surface Hardening Using the Flash Technique." Proceedings of the 20th Chemnitz Seminar on Materials Engineering, WTK 2018, Chemnitz, DEU Institute of Physics Publishing, 2018.
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