Development of Annular Heat Pipe Grinding Wheel for High Efficiency Machining of TC4 Titanium Alloy

HE Qingshan; FU Yucan; XU Hongjun; MA Ke; CHEN Chen

doi:10.7527/S1000-6893.2013.0288

ACTA AERONAUTICAET ASTRONAUTICA SINICA >

2013 , Vol. 34 >Issue 7: 1740 - 1747

DOI: https://doi.org/10.7527/S1000-6893.2013.0288

Material Engineering and Mechanical Manufacturing

Development of Annular Heat Pipe Grinding Wheel for High Efficiency Machining of TC4 Titanium Alloy

HE Qingshan ,
FU Yucan ,
XU Hongjun ,
MA Ke ,
CHEN Chen

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College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Received date: 2012-09-06

Revised date: 2012-10-29

Online published: 2012-11-23

Supported by

National Natural Science Foundation of China (51175254); National Basic Research Program of China (2009CB724403); Funding of Jiangsu Innovation Program for Graduate Education (CXLX11_0174)

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Abstract

Workpiece burnout is one of the distressing problems to be solved for the difficult-to-machine material TC4 titanium alloy due to the high grinding temperature caused by excessive grinding heat accumulation in the grinding zone. A new method of cooling the grinding zone by means of heat pipe technology is proposed in this paper. The heat transfer principle of an annular heat pipe grinding wheel(HPGW)was illustrated in the grinding process and an annular HPGW was designed and developed for high efficiency grinding of titanium alloy TC4. The manufacture was performed of annular heat pipe in the wheel consisting of three processes of vacuum pumping, working fluid filling and mechanical sealing. Finally, grinding experiments with different wheels (HPGW and non-HPGW) were carried out to verify the effect of enhancing heat transfer in the grinding zone under the same grinding condition for titanium alloy TC4. The results show that using the HPGW can effectively reduce the grinding temperature and prevent burnout in the grinding process.

Key words： titanium alloys; high efficiency grinding; grinding burnout; annular heat pipe grinding wheel; grinding temperature

Cite this article

HE Qingshan , FU Yucan , XU Hongjun , MA Ke , CHEN Chen . Development of Annular Heat Pipe Grinding Wheel for High Efficiency Machining of TC4 Titanium Alloy[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2013 , 34(7) : 1740 -1747 . DOI: 10.7527/S1000-6893.2013.0288

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