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http://dx.doi.org/10.3795/KSME-A.2017.41.4.257

Investigation of Fastening Performance of Subminiature Serrated Bolt  

Jang, Myung Guen (Dept. of Automotive Engineering, Seoul Nat'l Univ. of Science & Tech.)
Jeong, Jin Hwan (Dept. of Automotive Engineering, Seoul Nat'l Univ. of Science & Tech.)
Jang, Yeon Hui (Dept. of Automotive Engineering, Seoul Nat'l Univ. of Science & Tech.)
Kim, Hee Cheol (Dept. of Mech. and Automotive Engineering, Seoul Nat'l Univ. of Science & Tech.)
Kim, Jong-Bong (Dept. of Mech. and Automotive Engineering, Seoul Nat'l Univ. of Science & Tech.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.41, no.4, 2017 , pp. 257-262 More about this Journal
Abstract
As the size of electric products such as mobile phones and smart watches decrease, the bolts used to assemble these products should also be miniaturized. A miniature-sized bolt has to provide sufficient joining torque and anti-releasing torque to keep the components together. We studied a serrated bolt as a candidate for a miniature-sized fastener to increase the anti-releasing torque. In a serrated bolt, a serrated shape is formed on the bottom surface of the bolt head to create an obstacle to releasing. In this study, finite element analyses for the joining and releasing of bolts were carried out, and the anti-releasing performance was predicted. Based on the results of analyses using various numbers of serrations and fastening depths, the effects of the number of serrations and fastening depth on the anti-releasing performance were investigated.
Keywords
Serration Bolt; Release Torque; Releasing Analysis;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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