CN 41-1243/TG ISSN 1006-852X
Volume 40 Issue 5
Oct.  2020
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WANG Xiaoming, ZHANG Jianchao, WANG Xuping, ZHANG Yanbin, LIU Bo, LUO Liang, ZHAO Wei, ZHANG Naiqing, NIE Xiaolin, LI Changhe. Effect of nanoparticle volume on grinding performance of titanium alloy in cryogenic air minimum quantity lubrication[J]. Diamond & Abrasives Engineering, 2020, 40(5): 23-29. doi: 10.13394/j.cnki.jgszz.2020.05.0004
Citation: WANG Xiaoming, ZHANG Jianchao, WANG Xuping, ZHANG Yanbin, LIU Bo, LUO Liang, ZHAO Wei, ZHANG Naiqing, NIE Xiaolin, LI Changhe. Effect of nanoparticle volume on grinding performance of titanium alloy in cryogenic air minimum quantity lubrication[J]. Diamond & Abrasives Engineering, 2020, 40(5): 23-29. doi: 10.13394/j.cnki.jgszz.2020.05.0004

Effect of nanoparticle volume on grinding performance of titanium alloy in cryogenic air minimum quantity lubrication

doi: 10.13394/j.cnki.jgszz.2020.05.0004
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  • Rev Recd Date: 2020-06-15
  • Available Online: 2022-04-06
  • A two-step method was used to prepare alumina nanofluids with six different concentrations to perform grinding processing experiments on the titanium alloy Ti-6Al-4V. The results show that the maximum temperature in the grinding zone gradually decreases from 193.6 ℃ when the alumina volume fraction is 0.5% to a minimum value of 183.5 ℃ when it is 1.5%. When the volume fraction is further increased to 3.0%, the maximum temperature is gradually raised to 196.3 ℃. The specific grinding energy decreases from 74.8 J/mm3 to a minimum value of 64.73 J/mm3 while the volume fraction increases from 0.5% to 2.5%. When the volume fraction continues to increase to 3.0%, the specific grinding energy can rise to 69.33 J/mm3. The viscosity increases with the increase of alumina nanoparticles and reaches 235.8 MPa·s when the volume fraction is 3.0%. The contact angle decreases first with the increase of volume fraction and reaches the lowest value of 45.85° when the volume fraction is 2.5%. The dispersion of nanoparticles in the base oil affects the friction reduction and heat transfer performance of the nanofluid and thus the grinding performance.

     

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