Browse > Article

A Study on the Pulling Force Characteristic of the Reverse Screw for the Metal Fastening Method  

Kim, Tae-Hyung (경남정보대학 기계설계과)
Lee, Seong-Wook ((주)효성 중공업연구소)
Han, Geun-Jo (동아대학교 기계공학과)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.9, no.1, 2010 , pp. 93-98 More about this Journal
Abstract
The metal fastening method is the new technology to repair cracks in the casting material using specially designed reverse screws. In this study, we conduct the finite element analysis to analyze the pulling force characteristic of a reverse screw, the core component of the metal fastening method, with respect to the change of the applying torque, frictional coefficient and front screw angle. The simplified analysis model with single screw pitch is proposed for convergency of the non-linear contact analysis. As a results, the pulling force of a reverse screw increase in proportion to the applying torque but exponentially decrease according to frictional coefficient. And also we can find the optimum front screw angle with the largest pulling force is $20^{\circ}$.
Keywords
Metal Fastening Method; Reverse Screw; Pulling Force; Non-linear Contact Analysis;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Kim, H. S., "International Classification of Common Casting Defects," J. of the KFS, Vol 11. No. 5, pp. 373-381, 1991.
2 You, S. Y., "Cast Iron Welding," J. of the KWS, Vol. 7. No. 2, pp. 1-11, 1989.
3 Bickford, J. H., "An Introduction to the Design and Behavior of Bolt Joints, 2nd Ed," Marcel Dekker Inc., 1990.
4 Park, J. S., Choi, J. H., Cho, M. W and Choi, G. W., "Prediction of Mechanical Behaviors of Bio-mechanical Materials," J. of the KSMPE, Vol. 3. No. 1, pp. 72-78, 2004.
5 Minguez, J. M. and Vogwell, J., "Effect of Torque Tightening on the Fatigue Strength of Bolted Joints," Engineering Failure Analysis, Vol. 13, pp. 1410-1421, 2006.   DOI   ScienceOn
6 Bhattacharya, A., Sen, A and Das, S., "An Investigation on the Anti-loosening Characteristics of Threaded Fasteners under Vibratory Conditions," Mechanism and Machine Theory, doi:10.1016/j.mechmachtheory.2008.08.004, 2009.
7 ANSYS Inc., "ANSYS User's Manual V11," 2007.
8 KS D 3567, 'Free Cutting Carbon Steels," Korea Industrial Standard, 2002.