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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.
Carbon Fiber Reinforced Polymer(CFRP)기반 Lower Arm 최적화 관련 연구
공경일(Kyongil Kong),박영빈(Young-Bin Park),박형욱(Hyung Wook Park),금종원(Jong Won Keum),정학순(Hak Soon Jeong),정영복(Young Bok Jung) 한국자동차공학회 2011 한국자동차공학회 지부 학술대회 논문집 Vol.2011 No.4
Nowadays, automotive manufacturers have been adapting the lightweight materials instead of the steel due to increasing demand for reducing the automotive weight. However, due to the safety, the lightweight materials have to provide the high static/dynamic stiffness. Therefore, the carbon fiber reinforce polymer(CFRP) as been emerging as the candidate of the lightweight materials for next generation automotive components. There is also the need for optimizing the structure of the automotive components based on the CFRP. In this paper, the finite element method(FEM) simulation was performed on the steel as well as composite to determine the number of the carbon fiber plies made of the composites. The simulation result shows that the optimal number of the carbon fiber plies is 17 for the woven fabric ply and 50 for unidirectional ply with satisfying the Tsai-Wu failure criterion.