TY - GEN
T1 - Surface grinding of ZTA parts fabricated by laser engineered net shaping process
AU - Hu, Yingbin
AU - Wang, Hui
AU - Li, Yuanchen
AU - Ning, Fuda
AU - Cong, Weilong
N1 - Funding Information:
The work was supported by the Foundation through award CMMI-1538381.
Funding Information:
The work was supported by the National Science Foundation through award CMMI-1538381.
Publisher Copyright:
© Copyright 2018 ASME.
PY - 2018
Y1 - 2018
N2 - 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.
AB - 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.
KW - Cutting force
KW - Flatness
KW - Microhardness
KW - Rotary ultrasonic machining
KW - Surface roughness
KW - Zirconia toughened alumina
UR - http://www.scopus.com/inward/record.url?scp=85054977073&partnerID=8YFLogxK
U2 - 10.1115/MSEC2018-6663
DO - 10.1115/MSEC2018-6663
M3 - Conference contribution
AN - SCOPUS:85054977073
SN - 9780791851388
T3 - ASME 2018 13th International Manufacturing Science and Engineering Conference, MSEC 2018
BT - Processes
PB - American Society of Mechanical Engineers (ASME)
Y2 - 18 June 2018 through 22 June 2018
ER -