Surface grinding of ZTA parts fabricated by laser engineered net shaping process: Effects of ZrO2 content and ultrasonic vibration

Yingbin Hu, Hui Wang, Yuanchen Li, Fuda Ning, Weilong Cong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

The zirconia toughened alumina (ZTA) parts fabricated by laser engineered net shaping (LENS) process demonstrate problems resulted from poor surface quality. To improve surface quality and to reduce related problems, rotary ultrasonic machining (RUM) process, which combines both grinding process and ultrasonic machining process, has been introduced. In this investigation, the effects of ZrO2 content and ultrasonic vibration on flatness, surface roughness, microhardness, and cutting force in feeding direction of LENS-fabricated ZTA parts have been studied. Results showed that with the ZrO2 content increasing, the flatness value increased, the surface roughness value decreased, and the microhardness value firstly increased then decreased. Compared with LENS-fabricated parts, the parts processed by RUM machine exhibited better surface quality with significantly reduced flatness value and surface roughness value. In RUM process, the introduction of ultrasonic vibration was beneficial for reducing cutting force.

Original languageEnglish
Title of host publicationProcesses
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Print)9780791851388
DOIs
StatePublished - 2018
EventASME 2018 13th International Manufacturing Science and Engineering Conference, MSEC 2018 - College Station, United States
Duration: Jun 18 2018Jun 22 2018

Publication series

NameASME 2018 13th International Manufacturing Science and Engineering Conference, MSEC 2018
Volume4

Conference

ConferenceASME 2018 13th International Manufacturing Science and Engineering Conference, MSEC 2018
CountryUnited States
CityCollege Station
Period06/18/1806/22/18

Keywords

  • Cutting force
  • Flatness
  • Microhardness
  • Rotary ultrasonic machining
  • Surface roughness
  • Zirconia toughened alumina

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    Hu, Y., Wang, H., Li, Y., Ning, F., & Cong, W. (2018). Surface grinding of ZTA parts fabricated by laser engineered net shaping process: Effects of ZrO2 content and ultrasonic vibration. In Processes (ASME 2018 13th International Manufacturing Science and Engineering Conference, MSEC 2018; Vol. 4). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/MSEC2018-6663