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http://dx.doi.org/10.7735/ksmte.2012.21.6.932

A Study on the Mechanical Properties of the Friction Welding with Solid Shaft of SM45C  

Koo, Keon Seop (한국폴리텍대학 홍성캠퍼스 산업설비자동화과)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.21, no.6, 2012 , pp. 932-937 More about this Journal
Abstract
In the presented study, SM45C carbon steel parts were joined by friction welding. The welding process was carried out under optimized conditions using statistical approach. The study of SM45C is conducted with various combinations of process parameters. Parameter optimization, microstructure and mechanical property correlation are the major contribution of the study. The welded joints were produced by varying spindle revolution speed, friction pressure, upset pressure and burn-off length. Tension tests were applied to welded parts to obtain the strength of the joints. Fracturs properties were additionally obtained experimentally under fluctuated tensile loads. Microstructures using microphotographs were examined in the weld interface and weld region and heat affected zone and base metal and flash zone of welded parts. Finally, Hardness variations in welding zone and base metal were also obtained. Through these tests, the optimum conditions of parameters for ${\phi}20$ SM45C in friction welding were obtained when the friction spindle revolution was 1,950 rpm, the friction pressures was 30 MPs, upset pressures was 50 MPs.
Keywords
Friction welding; SM45C; Friction pressure; Upset pressure; Burn-off length; Microstructure; Weld interface; Heat Affected Zone; Base metal; Hardness;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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