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http://dx.doi.org/10.3795/KSME-A.2008.32.6.533

Development of High Strength Center-pillar by High Frequency Induction Heating  

Son, Jin-Hyug (울산대학교 대학원 기계자동차공학과)
Yum, Young-Jin (울산대학교 기계자동차공학부)
Kim, Won-Hyuck ((주)엠에스오토텍 기술연구소)
Hwang, Jung-Bok ((주)엠에스오토텍 기술연구소)
Kim, Sun-Ung ((주)엠에스오토텍 기술연구소)
Yoo, Seung-Jo ((주)엠에스오토텍 기술연구소)
Lee, Hyun-Woo ((주)엠에스오토텍 기술연구소)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.32, no.6, 2008 , pp. 533-539 More about this Journal
Abstract
An high frequency induction hardening technology of vehicle body press-formed of thin sheet steel has been developed to increase the strength of vehicle body parts locally by high frequency induction heating, thereby eliminating the need for reinforcements. And this technique for increasing the tensile strength of sheet steel was practically applied to the front floor cross member and center pillar reinforcement of a passenger car. The side impact behavior has been investigated when induction hardening technology is applied to the conventional low-carbon steel and weight reduction of an automotive body is expected. In this paper, basic experiments were performed for the hat-shaped specimen under high frequency induction heating process. Martensitic transformation was found in the heating zone through microscopic observation which showed higher hardness. In addition, the hardness and strength of the center-pillar specimen made of boron steel increased remarkably by high frequency induction heating.
Keywords
High Frequency Induction Heating; Induction Hardening; Heat Treatment; Hat-shaped Specimen; Center-pillar;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 1
연도 인용수 순위
1 Park J.C. and Bae D.H., 2003, “The Development of Automotive Parts Technologies with high Strength Steel,” Final Report of Manufacturing Technologies for High Strength Automotive Steels
2 Hong S.O., Kim H.B. and Cho G.J., 2003, “A Study on Improvement of Workpiece Deformation in High Frequency Heat Treatment,” Journal of the Korean Society of Manufacturing Process Engineers, Vol. 2, No. 2, pp. 31-36
3 Yum Y.J, Son J.H, Kim W.H., Hwang J.B. and Kim S.U., 2007, “Development of High Strength Automotive Part by High Frequency Induction Heating”, Proceedings of the KSME 2007 Fall Annual Meeting, pp. 7-12
4 Youn Y.H., 1994, “Estimation of Vehicle Structure and Occupant Protections on Side Impact by a Simultaneous Method CC-CTP,” Journal of the Korean Society of Automotive Engineers, 943846, pp. 378-383
5 Bae G.H., Song J.H., Huh H. and Kim S.H., 2005, “Optimum Design of a Center-Pillar Model with a Simplified Side Impact Analysis,” Transactions of the Korean Society of Automotive Engineers, Vol. 13, No. 6, pp. 84-92   과학기술학회마을
6 Yamanaka K. and Ohmori Y., 1977, “Effect of Boron on Transformation of Low-carbon Low-alloy Steels,” Transactions of the Iron and Steel Institute of Japan, Vol. 17, pp. 92-101
7 Shibata M., Oonishi M., Makino K. and Kurach S., 1998, “Method of Improving Side Impact Protection Performance by Induction Hardening of Body Reinforcement,” American Society of Automotive Engineers-International Congress and Exposition, SAE Technical Paper Series 980550, pp. 105-117