MATEC Web Conf.
Volume 157, 2018Machine Modelling and Simulations 2017 (MMS 2017)
|Number of page(s)||8|
|Section||Methods and systems in machine design|
|Published online||14 March 2018|
Analysis of residual stress in subsurface layers after precision hard machining of forging tools
Faculty of Mechanical Engineering, University of Zilina, Univerzitna 8215/1, 010 26 Zilina, Slovakia
2 Faculty of Mechanical Engineering, VŠB – Technical University of Ostrava, 17. Listopadu 15/2172 708 33, Ostrava, Czech Republic
3 Faculty of Manufacturing Technologies Technical University of Košice with a seat in Presov, Bayerova 1, 080 01 Presov, Slovakia
* Corresponding author: email@example.com
This paper is focused on analysis of residual stress of functional surfaces and subsurface layers created by precision technologies of hard machining for progressive constructional materials of forging tools. Methods of experiments are oriented on monitoring of residual stress in surface which is created by hard turning (roughing and finishing operations). Subsequently these surfaces were etched in thin layers by electro-chemical polishing. The residual stress was monitored in each etched layer. The measuring was executed by portable X-ray diffractometer for detection of residual stress and structural phases. The results significantly indicate rise and distribution of residual stress in surface and subsurface layers and their impact on functional properties of surface integrity.
Key words: x-ray diffraction / residual stress / triaxial stress tensor / high feed machining
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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