Effect of Thickness of Spring Wire on the Strength and Deformation Characteristics of a Spring Steel Conduit
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Creator Rachsak Sakdanuphab
Title Effect of Thickness of Spring Wire on the Strength and Deformation Characteristics of a Spring Steel Conduit
Contributor Kris Sangthong, Wimonwan Ponuam
Publisher King Mongkut's Institute of Technology Ladkrabang
Publication Year 2562
Journal Title Current Applied Science and Technology
Journal Vol. 19
Journal No. 1
Page no. 18-27
Keyword Compression force, JASO T001-97 standard, tensile testing, spring steel conduit
URL Website https://www.tci-thaijo.org/index.php/cast
Website title https://www.tci-thaijo.org/index.php
ISSN 2586-9396
Abstract In automotive industry, spring steel conduit is a main part of control cables in parking brake, tailgate and transmission. The structure of spring steel conduit consists of liner, steel wire and coating. The steel wire plays an important role in supporting cable exert the force. However, steel wire thickness is concerned with the mechanical strength, flexibility and production cost. In this work, the effects of steel wire thickness on mechanical and physical characteristics of spring steel conduit were investigated. The thickness of steel wire was varied from 0.3 to 0.6 mm. The analysis was performed by JASO T001-97 standard and Hooke's law was used to describe the spring steel conduit. The experimental result was confirmed by the compression testing and agreed with theoretical calculation. It was found that there was an increase in yield stress and young's modulus when the steel wire thickness increased. The compression force at yield that affects deformation in the spring steel conduit was also found. The deformation and stiffness were increased while the steel wire thickness increased. In addition, the minimization of steel wire thickness of 0.4 mm was obtained under JASO T001-97 standard, including the compression force at least 1,000 N and the safety factor of 1.5.
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