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최홍원,박진우,정상영,박홍석,고성우,Choi, Hung-Won,Park, Jin-Woo,Jeong, Sang-Yeong,Park, Hong-Seok,Ko, Sung-Woo 한국생산제조학회 2010 한국생산제조학회지 Vol.26 No.1
Nowadays, the global market requires a variety of products and shorter life cycle to fulfill the diverse demands of customers. To survive in the turbulent and competitive markets, automobile assembly companies must design and implement manufacturing systems that respond rapidly to market demands. In this paper, methods for reconfiguring system based on modular concept is proposed using AR(Augmented reality) technologies. First, the relationship matrixes between change drivers and system components are generated to divide existing manufacturing system to each module. And, new change drivers are selected based on required function in new system. Through the modification of relationship matrix, the concept design of new system is proposed and implemented in AR environment. Finally, according to proposed methods and procedure in this paper, the existing cockpit assembly system is reconfigured to spare tire assembly system as a case study. As the use of the modular-based reconfiguration method in AR environment, the time and cost for reconfiguring manufacturing system will be reduced dramatically.
레이저용접을 이용한 친환경 알루미늄 Fuel Filler Neck 개발
이병진(Byung-Jin Lee),정상영(Sang-Yeong Jeong),황현태(Hyun-Tae Hwang),정학순(Hak-Soon Jeong),최흥원(Hung-Won Choi) 한국생산제조학회 2011 한국생산제조학회지 Vol.20 No.4
Nowadays, the automobile manufactures make a great efforts to reduce manufacturing cost, body weight and to develop eco-environmental parts in order to be more competitive and solve global warming. For these reasons, materials of automobile’s parts are changed over from general carbon steel and stainless steel to plastic and Aluminum. And, laser welding technology is introduced to apply welding between aluminum parts. In this paper, the data of laser welding parameters is collected through lots of the experiment according to the material, welding speed and laser power to apply laser welding in Aluminum fuel filler neck assembly. After manufacturing prototype of aluminum fuel filler neck, vibration durability test, tensile strength test and salt water test are applied to verify product’s satisfied function.