›› 2012, Vol. ›› Issue (06): 1409-1414.

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Laser-assisted machining technique for zirconia ceramics

LI Guo-fa1, ZHANG Dong-lin1, GONG Jin-long2, WANG Li-bin1   

  1. 1. College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China;
    2. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China
  • Received:2011-12-29 Online:2012-11-01

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Abstract: The laser-assisted machining (LAM) was researched to solve the processing problem of zirconia(ZrO2) ceramics with high strength and high brittleness. A 3-D finite element model was built for the heat transfer, and the simulation of the temperature field was performed using software ANSYS. A machining test system was built and the machining tests were carried out. A Nd:YAG laser was used to heat the workpiece, an infrared thermometer was used to measure the surface temperature, and a piezo-ergometer was used to measure the 3-axis forces on-line. Meanwhile, the chip morphology, the tool wear state and the surface roughness were evaluated after each cutting. The research results showed that compared with the traditional cutting processing, LAM effectively reduces the cutting force and the tool wear, improves the quality of machined surface.

Key words: mechanical manufacturing technology and equipment, laser-assisted machining(LAM), finite element method, zirconia ceramics

CLC Number: 

  • TG665
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