Original scientific paper

https://doi.org/10.17559/TV-20160531085315

Identification of Residual Stresses in a Surface Layer of Ti6AL4V and Inconel 718 after Process of Peripheral Milling

Joanna Krajewska-Śpiewak orcid.org/0000-0002-8241-4623 ; Cracow University of Technology, Al. Jana Pawła II 37, 31-864 Kraków, Poland
Józef Gawlik ; Cracow University of Technology, Al. Jana Pawła II 37, 31-864 Kraków, Poland
Witold Piekoszewski ; Institute for Sustainable Technologies, National Research Institute in Radom, Ul. K. Pułaskiego 6/10, 26-600 Radom, Poland
Krzysztof Stachura ; University of Technologies and Humanities in Radom, Ul. Malczewskiego 29, 26-600 Radom, Poland

Abstract

Titanium based alloy – Ti6Al4V and nickel based alloy – Inconel 718 belong to the group of difficult-to-cut materials. Thanks to their unique properties they can be used in constructions that need to withstand the high reliability requirements which are required inter alia in the aircraft industry. The physical properties of cutting layer, including residual stresses, play an important role during exploitation of products made out of difficult-to-cut materials. In the article, the method of residual stresses determination is described and the exemplary results of carried out studies are provided. Described method is based on the measurement of the defects in the crystal lattice. The carried out studies show that the state of residual stresses, in a subsurface layer, can be formed by the selection of machining conditions.

Keywords

difficult-to-cut materials; milling; residual stresses; subsurface layer; x-ray diffraction

Hrčak ID:

193599

URI

https://hrcak.srce.hr/193599

Publication date:

10.2.2018.

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