Experimental investigation on tool wear in ultrasonic vibration-assisted turning of SiCf/SiC ceramic matrix composite

Cong Liu, Wenhu Wang, Yifeng Xiong, Bo Huang, Liangwan Li

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Silicon carbide fiber-reinforced silicon carbide matrix composites have attracted attention due to superior properties, such as low density, high strength, and high-temperature resistance. However, it often faces severe tool wear during cutting, with the fibers and matrix material being of high hardness and brittleness, which has an inevitable effect on the engineering application of this kind of material. In this paper, wear volume VW is used to evaluate the tool wear through solid modeling and parameter measurement based on the tool wear topography in turning of SiCf/SiC ceramic matrix composites. Conventional turning (CT), ultrasonic vibration-assisted turning (UVAT), and ultrasonic vibration-assisted turning with water cooling (W-UVAT) experiments are carried out using CBN, PCD, and PDC tools to investigate and analyze the cutting performance. In the meantime, the tool wear mechanism and form are studied based on the analysis of ultrasonic vibration on tool wear, the geometric position of wear, accumulation of cutting workpiece powders, and tool wear curve. Experimental results found that the PDC tool obtains the best cutting performance, which is more suitable for turning silicon carbide fiber-reinforced silicon carbide matrix composites. Within the experimental parameters, with the increased ultrasonic amplitude A, VW decreases first and then increases, reaching a minimum at A which is 3 µm. The main wear mechanism of the PDC tool is abrasive wear, and the primary wear form is the spalling of polycrystalline diamond abrasive grains.

Original languageEnglish
Pages (from-to)3081-3101
Number of pages21
JournalInternational Journal of Advanced Manufacturing Technology
Volume125
Issue number7-8
DOIs
StatePublished - Apr 2023

Keywords

  • Cutting performance
  • Mechanism
  • SiC/SiC
  • Turning
  • Ultrasonic vibration
  • Wear volume

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