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Increase in tool life for end milling titanium alloys using tools with multilayer composite nanostructured modified coatings

Tool-life increase for end mills in machining titanium alloys is an important challenge, especially in machining large products when tool replacement during a machining operation is undesirable or unacceptable. Using end mills with specially developed multilayer composite nanostructured modified coa...

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Bibliographic Details
Published in:Procedia CIRP 2019, Vol.81, p.1412-1416
Main Authors: Vereschaka, Alexey, Gurin, Vladimir, Oganyan, Maksim, Oganyan, Gaik, Bublikov, Jury, Shein, Alexander
Format: Article
Language:English
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Summary:Tool-life increase for end mills in machining titanium alloys is an important challenge, especially in machining large products when tool replacement during a machining operation is undesirable or unacceptable. Using end mills with specially developed multilayer composite nanostructured modified coatings can meet this challenge. The study considered end mills with replaceable carbide inserts without coatings, commercial TiN and ZrN coatings, and multilayer composite nanostructured Ti-TiN-(Ti,Cr,Al)N and Zr-ZrN-(Zr,Al,Si)N coatings. Cutting tests were conducted to investigate the power parameters of the milling process and tool-wear pattern. Using the proposed multilayer composite nanostructured modified coatings can increase tool life by 4-4.5 times and ensure a balanced change in power parameters, providing a balanced and predictable tool-wear pattern.
ISSN:2212-8271
2212-8271
DOI:10.1016/j.procir.2019.04.173