Tool wear analysis is essential in high speed machining, especially in the intermittent cutting and milling processes. Analyses of tool wear mechanisms will be beneficial for proposing the suggestions in the tool design process how to enhance the tool material properties to improve the cutting performance and eventually tool life. Wear mechanisms of coated carbide tools in high-speed dry milling of Ti-6A1-4V were assessed by characterization of the cross-section of worn tool cutting edge utilizing scanning electron microscopy, and the element distribution of the worn tool surface was detected by using energy dispersive spectroscopy. Results show that flank wear, chipping and flaking of tool material on the rake face and/or at the nose of tools were the dominant failure modes. And synergistic interaction among coating delamination, erosion wear, adhesion, dissolution-diffusion wear, and thermal-mechanical fatigue wear were the main wear mechanisms analyzed from cross-sectional worn cutting edge. Erosion wear was identified in high speed milling of Titanium alloy and introduced into the wear mechanisms of metal cutting tools. The hydromechanics characteristic of the chips produced in high-speed machining should be responsible for erosion wear of cuttings tools.
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ASME 2015 International Manufacturing Science and Engineering Conference
June 8–12, 2015
Charlotte, North Carolina, USA
Conference Sponsors:
- Manufacturing Engineering Division
ISBN:
978-0-7918-5682-6
PROCEEDINGS PAPER
Wear Mechanism Analysis of Coated Carbide Tools in High-Speed Milling of Ti-6Al-4V Alloy via Cross-Section Characterization of Worn Cutting Edge
Anhai Li,
Anhai Li
Shandong University, Jinan, China
Shandong Binzhou Bohai Piston Co., Ltd., Binzhou, China
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Fenghua Lin
Fenghua Lin
Shandong Binzhou Bohai Piston Co., Ltd., Binzhou, China
Search for other works by this author on:
Anhai Li
Shandong University, Jinan, China
Shandong Binzhou Bohai Piston Co., Ltd., Binzhou, China
Jun Zhao
Shandong University, Jinan, China
Fenghua Lin
Shandong Binzhou Bohai Piston Co., Ltd., Binzhou, China
Paper No:
MSEC2015-9335, V001T02A078; 6 pages
Published Online:
September 25, 2015
Citation
Li, A, Zhao, J, & Lin, F. "Wear Mechanism Analysis of Coated Carbide Tools in High-Speed Milling of Ti-6Al-4V Alloy via Cross-Section Characterization of Worn Cutting Edge." Proceedings of the ASME 2015 International Manufacturing Science and Engineering Conference. Volume 1: Processing. Charlotte, North Carolina, USA. June 8–12, 2015. V001T02A078. ASME. https://doi.org/10.1115/MSEC2015-9335
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