Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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A Study on Setting of Torque for Compressor Jointing Bolt

컴프레서 체결용 볼트의 적정 토크 설정에 관한 연구

  • Kong, Yu Sik (A+LINC, Pukyong National University) ;
  • Kim, Tae Wan (Department of Mechanical Engineering, Pukyong National University)
  • 공유식 (부경대학교 A+LINC 사업단) ;
  • 김태완 (부경대학교 기계공학과)
  • Received : 2013.05.17
  • Accepted : 2013.06.19
  • Published : 2013.10.31
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Abstract

When a threaded fastener is tightened, the torque-tension relationship is highly sensitive to two friction components: thread friction and head friction. In this study, we carried out friction experiments and analyses to determine the optimum clamping torque setting for bolt joints. First, we measured the coefficients of thread friction and head friction under the same running conditions of the bolt clamping process for lubricated and non-lubricated bolts. We also measured axial tension through bolt clamping tests using lubricated and non-lubricated bolts attached to a strain gauge. Finally, we compared the experiment and theoretical results.

Keywords

References

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  3. Sakai, T. "Coefficient of Friction for the threaded fastener," Trans. Jpn. Soc. Mech. Eng., Vol. 43, No. 7, pp. 370, 1977.
  4. Yoshimoto, I., Maruyama, K., and Hasegawa, H., "Comparison of Control Methods for Screw Tightening," J. Japan Soc. Prec. Eng., Vol. 44, No. 2, pp. 204, 1978.
  5. McNeill, A., "An Integrated Approach to Bolted Joint Design to Obtain Targeted Clamp Loads," SME Paper, AD 86-881, 1986.
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