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 [±0°]₁₀ is the highest. Followed by [90°/0°]₁₀ is the highest. The largest clamping torque is [90°/0°]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°/0°]₁₀ meet both tensile properties and clamping force.

• Keywords: CFRP (Carbon fiber reinforced plastic) (탄소섬유 강화 플라스틱),Stacking angle (적층 각도),Tensile test(인장 시험),Subminiature screw (초소형 나사),Clamping force (체결력)