http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김일수,김학형,장한기,김희진,곽성규,유회수,심지연,Kim, Ill-Soo,Kim, Hak-Hyoung,Jang, Han-Kee,Kim, Hee-Jin,Kwak, Sung-Kyu,Ryoo, Hoi-Soo,Shim, Ji-Yeon 대한용접접합학회 2009 대한용접·접합학회지 Vol.27 No.4
In the process to manufacture for metallic structures, control of welding deformation is one of an important problems connected with reliability of the manufactured structures so that welding deformation should be measured and controlled with quickly and actively. Also, welding parameters which have as lot of effects on welding deformation such as arc voltage, welding current and welding speed can also be controlled. The objectives for this study were to develop a simple 2-D FEM to calculate not only the transient thermal histories but also the sizes of fusion and heat-affected zone (HAZ) in multi pass arc welds including the butt and fillet weld type with dissimilar thickness, and to concentrate on a developed model for the finding the parameters of Godak's moving heat source model based on a GA. The developed model includes a GA program using MATLB and GA toolbox, and a batch mode thermal model using ANSYS software. Not only the thermal model was verified by comparison with Goldak's work but also the developed model was validated with molten zone section experimental data.
김일수,전광석,손준식,서주환,김학형,심지연,Kim, Ill-Soo,Chon, Kwang-Suk,Son, Joon-Sik,Seo, Joo-Hwan,Kim, Hak-Hyoung,Shim, Ji-Yeon 대한용접접합학회 2006 대한용접·접합학회지 Vol.24 No.5
The robotic arc welding is widely employed in the fabrication industry fer increasing productivity and enhancing product quality by its high processing speed, accuracy and repeatability. Basically, the bead geometry plays an important role in determining the mechanical properties of the weld. So that it is very important to select the process variables for obtaining optimal bead geometry. In this paper, the possibilities of the Infrared camera in sensing and control of the bead geometry in the automated welding process are presented. Both bead width and thermal images from infrared thermography are effected by process parameters. Bead width and isotherm radii can be expressed in terms of process parameters(welding current and welding speed) using mathematical equations obtained by empirical analysis using infrared camera. A linear relationship exists between the isothermal radii producted during the welding process and bead width.
김일수(Ill Soo Kim),신윤덕(Yun-De Shen) 제어로봇시스템학회 2021 제어·로봇·시스템학회 논문지 Vol.27 No.12
Generally, in welding technology, big data refers to data that is too large, fast, or complex for processing using traditional methods. For the past years, the act of accessing and storing large amounts of information for welding has been utilized. Welding technology is a central component of numerous value creation chains and plays an important role in this development. In this study, gas metal arc (GMA) welding experiments were conducted to develop an algorithm for predicting welding defects in the GMA melting process of flat plates on SS400 materials using big data technology. The correlation between various welding parameters was analyzed using the real-time measured current and voltage data during welding. In addition, the welding quality related to the weld bead was analyzed using a 3D scanner. The optimal welding parameters were predicted using a CHMM model for the welShen Yun Deding current signal in the normal welding section, which is one of the machine learning technologies. By learning this, the similarity between the normal welding current signal and the weld defect was expressed as a probability, and the changed pattern of the Log-pdf value was used to predict the welding quality.
김일수(Ill-Soo Kim),박창언(Chang-Eun Park),정영재(Young-Jae Jeong),송창재(Chang-Jae Song),김학형(Hak-Hyoung Kim),박주석(Ju-Seog Park) 한국유체기계학회 1999 유체기계 연구개발 발표회 논문집 Vol.- No.-
The biggest challenge facing today manufacturing industry is better quality and high productivity. From an economic point of view, productivity is the most important parameter, as high productivity will reduce the cost. However, the customers of day are not only cost concerned, but also quality conscious. So high accuracy levels should also be achieved in the manufacturing process. This paper reports the development of a automatic design system based on AutoCAD program. This work is composed of three section that are design of top down menu, impeller and casing for pump programed by AutoLISP language and runned Windows system. The developed system ultimately generates the design for a pump through AutoCAD program. In the design of the pump, it needs about 23 hours with an expert, but this system can be only 80 seconds without an expert.