Browse > Article

Plastic Flow Direction and Strength Evaluation of Dissimilar Fiction Bonding Interface Joints  

Oh, Jung-Kuk (Dept.of Mechanical Engineering, Chosun University)
Sung, Back-Sub (Mech. Eng. Dept., Mokpo National University)
Publication Information
Journal of the Korean Society for Precision Engineering / v.19, no.5, 2002 , pp. 43-50 More about this Journal
Abstract
Friction welding has many merits such as energy efficiency, simple processing, etc butt difficult to obtain good weld at the welded interface and heat affected zone. To date, the continuum mechanics and fracture mechanics are utilized to analyse stresses at the interface and propagation of cracks. In this study. STS304 and SM15C are selected because they can be differentiated distinctively from metallic point of view and crack can be observed easily. It is ovserved during friction welding that STS304, rotary part is hatter than SH15C, fixed part. The last fracture occurs around the center because the surface of fatigue fracture has smooth regions, due to the separation phenomenon in plastic flows layers and striation dimple pattern.
Keywords
Heat Affected Zone; Bonding Interface; Plastic Flow;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Lu, M. C., and Erdogan, F., 'Stress Intensity Factors in two bonded Elastic Layers Containing Cracks Perpendicular to and on the Interface-II. Solution And Results,' Engineering Fracture Mechanics, Vol. 18, No. 3, pp. 507-528, 1983   DOI   ScienceOn
2 나석주, Jurgen Ruge, '이성재료${cdot}$마찰용접부의 기계적성질 검사,' 대한기계학회, 제8권, 제1호, pp. 41-47, 1984   과학기술학회마을
3 李相龍, '非實通 圓孔 缺陷材에 있어서 짧은 龜裂의 非線型 擧動 및 크랙成長에 關한 硏究,' 高麗大學校 碩士學位論文, 1992
4 이현우, 김주환, 김현재, '용접 토우부의 국부적 변형률 측정을 통한 용접부의 정적 과하중에 따른 피로강도의 변화 평가,' 한국정밀공학회 제18권 제6호, pp. 59-66, 2001   과학기술학회마을
5 송삼홍, 이정무, '혼합모드 하중에서의 STS304의 피로균열 전파거동,' 한국정밀공학회 제18권 제9호, pp. 131-139, 2001   과학기술학회마을
6 Annual Books of ASTM Standards, Vol. 0301, E647-88, 'Standard test method for measurement of Fatigue Crack Growth Rates,' p. 328, 1976
7 오환섭, 오정국, 박준건, 박경식, '이종마찰압접재의 계면파괴거동,' 한국자동차공학회 춘계학술대회 논문집, Vol. II, pp. 604-610, 1997
8 西谷弘信, 'ぎ裂閉口現像と疲勞ぎ裂傅ば擧動に反ぼす平均應力の影響,' 日本機械學會論文集, Vol. 539, p. 1964, 1975
9 송삼홍, 박명과, '國産 異種鋼을 摩擦壓接한 경우의 疲勞擧動(SM45C와 SUS304材를 摩擦壓接한 경우),' 大韓機械學會論文, 第11卷, 第6號, pp. 953-962, 1987   과학기술학회마을
10 박철희, '境界要素法을 利用한 表面龜裂의 應力擴大係數解析 및 壽命豫測,' 慶熙大學校, 博士學位論文, 1997
11 오세욱, 허정원, 유재환, 김재철, 'SM40C와 STS304 이종재료 마찰용접재의 파단특성 및 크랙전파특성의 연구,' 대한용접학회지, 제10권, 제4호, pp. 230-239, 1992   과학기술학회마을