Recently the competition of market is getting more and more severe as the block of economic market has been broken due to the free trade of the world. In the mean time, the companies are experiencing more hardship than before because of the difficulties in employing workers, increases of salray and fixed cost of production and higher demand on the product quality from the consumer. Therefore various ways are needed for the resolutions of the production technology and the marketing. Production information system is one way which can bring a innovative advance of the company. In this study, we will examine the design methodology of the POP system for its efficient implementation as a production information system in the automobile parts manufacturing process. For this, we are to suggest the strategy of system implementation as we examine the process analysis, its redesign and coding for construction and testing and performing for its implementation.

Shock absorber base assembly is one of the parts in shock absorber equipment which control the vehicle movement and absorb the shock and vibration to realize the stability and the comfort for the riding. This part demand hardness, reliance and rigorous density of the welded section because it is a resist pressure container which needs durability by being filled with gas and oil. However, the present engineering needs much time, high cost and shows low production rate due to the eight processes which are spot welding, reinforcement welding(MAG), prior process of base cap and tube for the precision and pressing etc. In this study we will analyze the problem of the processes for the base assembly and suggest an engineering to improve the problem innovatively using frictional welding. As the result of experiment by frictional welding using frictional heat, its hardness for the joining section became high and its precision showed excellence. Therefore we can expect the curtailment for the welding processes, the reduction of cost and excellent joining function.

The purpose of this study is to analyse the geological and terrain factors of the part of Choogaryeong Rift Valley between Yeoncheon and Cheolwon. The results are: (1) The geology is composed of three kinds of rocks: Yeoncheon System, Jurassic volcanic rocks and Quaternary Jeongok basalt. (2) It seems to be that there are basaltic layers of 7-8m thickness below the rift valley by the analysis of resistivity survey. (3) The topography of the region could be divided into two characteristic parts: the rift valley and surrounding mountainous area. (4) The site of the area is important because it is the boundary where two kinds of different geologic factors contact. (5) The situation of the area is important because of its central location between Seoul and Wonsan.

Punch Bowl basin is analysed for the earth science and terrain factors such as geology, geophysical features, topography and water systems. The study area is composed of two kinds of rocks : Jurrasic granite in the central part and Precambrian metamorphic complex in the marginal part of she basin. The depth of the base rock is about 20 to 40 meters below the surface at the center of the basin. The process which has formed the basin may be the differential weathering of the rocks. The morphology of the slope of the basin is concave and the slope is about 20° above the nickpoint and about 5° below it. The water system of the region is very poor in drainage pattern.