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최성대(Seong-Dae Choi),정선환(Seon-Hwan Cheong),김기만(Gi-Man Kim),변용근(Yong-Kun Byun),김잠규(Jam-Gyu Kim),양승철(Seung-Cheol Yang) 한국생산제조학회 2007 한국공작기계학회 춘계학술대회논문집 Vol.2007 No.-
Industrial technology has been used to surface hardening method to improve the surface. Shot peening is the one of the surface hardening method and it is used for removing the defect from the surface of steel and improving the fatigue strength on surface. The object of this research work is to investigate the influence of mechanical property by shot peening of hinge spring throughout the experimental method on roughness, hardness, creep, fatigue test and photography. From the result of the this paper, shot peening is improved the surface hardness, heating resistance, fatigue strength of hinge spring and has examined that shot peening is essential requirement to design the hinge spring.
정선환(Seon-Hwan Cheong),최성대(Seong-Dae Choi),김기만(Ki-Man Kim),변용근(Yong-Kun Byun),양승철(Seung-Cheol Yang) 한국기계가공학회 2007 한국기계가공학회지 Vol.6 No.1
The spring is an important mechanical parts to improve the functions of precision machines, automobiles, ships, industrial machines, and IT devices etc.. The hinge mechanism for LCD monitors is very important to support and maintain the proper position of monitor panel, and the tension spring which is a major parts of hinge mechanism plays a significant roll to provide the supporting force positioning the monitor panel. In this paper, an analysis and experiment were carried out to investigate the fatigue characteristics of the tension spring of hinge mechanism, such as hardness test, fatigue test and fractography analysis. As a result of this study the SWPB with heat treatment and shot peening was found to have the optimal design conditions of tension spring for LCD monitor hinge mechanism.