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권원태(W. T. Kwon) 한국자동차공학회 1993 한국 자동차공학회논문집 Vol.1 No.2
The trajectory planning for the manipulator installed on the automatic pothole repair vehicle is discussed and the final surface of the patched pot hole is simulated in this work. The relationship between the accumulation data of the mixture with and without the movement of the manipulator is identified to utilize the latter data for the calculation of the former one. Based on this relationship, the method to calculate the accumulation of the mixture when the manipulator changes the speed and the direction is also introduced. The trajectory is determined to make the final surface smooth under. the condition that the pothole is cut to hexahedron before patching and only the spacing and the shifting of the manipulator is controllable. Final surface is simulated by the computer to prove the adequacy of the determined trajectory.<br/>
정하규(H. K Jung),권원태(W. T. Kwon),리광훈(G. H. Rhee),심현석(H. S. Shim),정종혁(J. H. Jung),이현욱(H. W. Lee) 한국생산제조학회 2008 한국생산제조시스템학회 학술발표대회 논문집 Vol.2008 No.5
Thermosonic bonding is a method using heat and ultrasonic for bonding two materials. Since a horn transfers vibration and heat to the bonding material, it is a very important to figure out the heat flow on the horn and the alteration of the dynamic behavior due to the manufacturing error of the horn. In this research, the effect of temperature to the horn system and the effect of tolerance parameters to the amplitude and orientation of the system are performed. The manufacturing error that give most significant the effect on the amplitude and orientation are determined using Taguchi's method. It is found that the durability of the horn is affected by the temperature, while the amplitude and the orientation by the error of the length.
정하규(H. K Jung),권원태(W. T. Kwon),이수일(S. I. Lee) 한국생산제조학회 2008 한국생산제조시스템학회 학술발표대회 논문집 Vol.2008 No.10
Thermosonic bonding is a technology using heat and ultrasonic for the electronic packaging. Mechanical properties and alignment of the horn have a great effect on the bonding capability of the thermosonic bonding system. In this research, the effect of tolerance parameters and alignment to the performance of the bonding system are studied. The tolerance parameters and alignment that give most significant the effect on the performance of the bonding system are determined using Taguchi's method. It is found that error of the length of horn is determined to be the parameter that have great effect on the performance of the system.