Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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On Clamping Force Characteristics in M1.4 Subminiature Screw for CFRP Stacking Angles

M1.4 초소형 나사의 CFRP 적층 경향에 따른 체결력 특성에 관한 연구

  • Kim, Jung Ho (Department of Automobiles, Chosun College of Science & Technology) ;
  • Ra, Seung Woo (Technology Research Center, Seoul Metal Co., Ltd.) ;
  • Kim, Hee Seong (Department of Mechanical System Engineering, Chosun University) ;
  • Kim, Ji Hoon (Department of Mechanical System Engineering, Chosun University)
  • 김정호 (조선이공대학교 자동차과) ;
  • 나승우 ((주)서울금속 기술연구소) ;
  • 김희성 (조선대학교 기계시스템공학과) ;
  • 김지훈 (조선대학교 기계시스템공학과)
  • Received : 2015.05.11
  • Accepted : 2015.05.21
  • Published : 2015.06.01
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Abstract

Recent development of core techniques the IT electronics industry can condense into lightweight and slimmer. In this circumstance, researches for the lightweight materials and subminiature screw have been attracted. In this study, the CFRP was produced by stacking angle to obtain the tensile properties. And Comparing the coated screws and non-coated screws on the specimen, and evaluating the adequacy for the application of CFRP using the result. So The clamping force measured by comparison evaluation. Low screw reverse and Superior torque value at each stacking angle were found the optimum conditions, when Subminiature Screw is applied on smart devices. Both tensile strength and stiffness of $[{\pm}0^{\circ}]_{10}$ is the highest. Followed by $[90^{\circ}/0^{\circ}]_{10}$ is the highest. The largest clamping torque is $[90^{\circ}/0^{\circ}]_{10}$ When Subminiature Screw is applied coating and non-coating to prevent loosening. Based on the above, Subminiature Screw should be applied in smart devices, because $[90^{\circ}/0^{\circ}]_{10}$ meet both tensile properties and clamping force.

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References

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