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A Study on the Friction Welding of SM45C/SM20C-Pipe which Used in the Light Piston-Rod  

Min, Byung-Hoon (충남대학교 교육대학원)
Choi, Su-Hyun (충남대학교 교육대학원)
Kang, Jeong-Sik (한국기계연구원)
Lee, Hyung-Ho (태산 ENG)
Min, Taeg-Ki (충남대학교 기계공학과)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.17, no.4, 2008 , pp. 42-50 More about this Journal
Abstract
Various researches to reduce weight of a vehicle are achieving. One of these researches is tendencious to manufacture the hollow piston rod using friction welding instead of solid one of the vehicle shock absorber. This study deals with the friction welding of SM45C to SM20C-pipe that is used normally in the vehicle shock absorber. The friction time was variable conditions under the conditions of spindle revolution of 2,000rpm, friction pressure of 55MPa, upset pressure of 75MPa, and upset time of 2.0seconds. Under these conditions, the microstructure of weld interface, tensile fracture surface and mechanical tests of friction weld were studied and so the results were as follows. When the friction time was l.5seconds under the conditions, the maximum tensile strength of the friction weld happened to be 837MPa, which is 113% of SM20C's tensile strength and 97% of SM45C's. The optimal welding conditions were n=2,000rpm, $P_1=55MPa$, $P_2=75MPa$, $t_1=1.5sec$, $t_2=2.0sec$ when the total upset length is 1.7mm.
Keywords
Friction welding; Shock absorber; SM45C; SM20C; Pipe;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Park, K. H., Min, T. K., Yoon, Y. J., and Park, C. S., 2006, "A Study on the Joint Properties accoding to the Friction Welding Area Change of Carbon Steel(SM45C)," KSMTE, Vol. 15, No. 1, pp. 102-107   과학기술학회마을
2 Jeong, H. S., 1997, "Fundamentals and Basic Application of Friction Welding," KWS, Vol. 15, No. 6, pp. 1-12
3 Vill, V. I., 1957, "Friction Welding of Metals," Svarochne Proizvodstvo, Vol. 3, No. 9, pp. 8-23
4 Spindler, D. E., 1994, "What Industrial Needs to Know about Friction Welding," Welding Journal, Vol. 73, Issue 3, pp. 37-42
5 Lee, S. Y. and Yun, B. S., 2001, "Heat Transfer Analysis of Friction Welding of A2024 to SM45C," KSMTE, Vol. 10, No. 1, pp. 65-70
6 Oh, S. K., Park, J. B., and Kong, Y. S., 1999, "A Study on Optimization of Friction Welding of Automobile Component Materials(SM40C) and Its Real Time Quality Evaluation by AE," KCORE, Vol. 13, No. 1, pp. 88-93
7 Park, K. H. and Min, T. K., 2007, "A Study on Mechanical Properties According to the Radius Change Position of Outer Circumference in A2024- T4 Friction Welding," KSMTE, Vol. 16, No. 3, pp. 109-116   과학기술학회마을
8 Nicholas, E. D., 1977, "Where Industry Uses Friction Welding," Welding Design & Fabrication Magazine, Mar, pp. 74-76