INFLUENCE OF EFFECTIVE MILLING STRATEGIES ON THE RESIDUAL STRESS

1 PAGÁČ Marek
Co-authors:
1 MALOTOVÁ Šárka 1 SADÍLEK Marek 1 PETRŮ Jana 1 ZLÁMAL Tomáš 1 KRATOCHVÍL Jiří
Institution:
1 VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, marek.pagac@vsb.cz, sarka.malotova.st@vsb.cz, marek.sadilek@vsb.cz, jana.petru@vsb.cz, tomas.zlamal@vsb.cz, jiri.kratochvil@vsb.cz
Conference:
25th Anniversary International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 25th - 27th 2016
Proceedings:
Proceedings 25th Anniversary International Conference on Metallurgy and Materials
Pages:
819-824
ISBN:
978-80-87294-67-3
ISSN:
2694-9296
Published:
14th December 2016
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
88 views / 35 downloads
Abstract

The article deals with the evaluation of residual stress after machining of surfaces using effective milling strategies programmed by CAM systems. Milling of the shaped parts containing pockets and grooves, the cutting tool must be driven into corners with lower feed rate, because angle of entry, cutting depth increase and then a chip is tamped and leaving from the place of cut is very difficult. Application of standard strategies affects the beginning of tool wear, decreased durability and tool life, raised roughness parameters of the machined surface and increased residual stress. Aspects of efficient milling strategies programmed by CAM systems allow to machine with the entire cutting length of the tool with a constant angle of entry for the entire machining time. These strategies have a positive effect on residual stress in the material. It was confirmed by the machining test of an experimental piece from material Toolox44. The residual stress was measured by non-destructive method with using the device Proto iXRD operating on the principle of X-Ray diffraction. This measurement was realized in cooperation with the Department of Machining and Manufacturing Technology at University of Žilina in Žilina.

Keywords: Residual Stress; X-Ray Diffraction; Machining; Milling Strategy; CAM Systems

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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