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  4. Micro-texture dependent temperature distribution of CVD diamond thick film cutting tools during turning of Ti-6Al-4V
 
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2022
Journal Article
Titel

Micro-texture dependent temperature distribution of CVD diamond thick film cutting tools during turning of Ti-6Al-4V

Abstract
Machining titanium alloys such as Ti-6Al-4V results in a high thermomechanical load on cutting tools and consequently short tool lifes. With respect to a necessary reduction of the resulting cutting tool temperatures, ultrashort pulse (USP) laser fabricated micro-textured rake faces offer direct supply of cooling lubricant into the cutting zone and lead to a reduced heat induction. As a result, micro-textured CVD diamond thick film cutting tools are also capable of machining high-performance materials due to reduced contact temperatures. In the scope of the research, the resulting temperature distribution for micro-textured rake faces will be compared under both dry and wet process conditions. Measurements show a reduction of the resulting cutting tool temperatures of Δϑt = 27.9 % using micro-textured cutting tools compared to non-textured cutting tools. A validated simulation provides valuable information about the contact temperatures enabling a specific development of the micro-texture geometry. As a result, a reduction of the contact temperature between chip and rake face by ΔϑT = 24.7 % was possible.
Author(s)
Uhlmann, Eckart
Technische Universität Berlin
Schröter, D.
Technische Universität Berlin
Gärtner, Eric
Fraunhofer-Institut für Werkzeugmaschinen und Umformtechnik IWU
Zeitschrift
Procedia CIRP
Konferenz
Conference on Surface Integrity 2022
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DOI
10.1016/j.procir.2022.03.075
Language
English
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Fraunhofer-Institut für Werkzeugmaschinen und Umformtechnik IWU
Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK
Tags
  • diamond tool

  • laser

  • surface integrity

  • temperature

  • texture

  • titanium

  • turning

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