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이상용(S.Y Lee),윤한용(H.Y Yoon),엄문광(M.K Um),변준형(J.H Byun),임재규(J.K Lim) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
In a number of manufacturing process for composite structures, the resin flow is an important factor for process prediction and development. So this paper presented optimal resin infusion temperature about resin flow. A composite plate which is composed of carbon fabric and RTM6 resin was fabricated by resin transfer molding(RTM) process. To optimize a process condition such as an infusion temperature, permeability of the preform and viscosity of RTM6 resin were measured. The optimal temperature of the resin during infusion was suggested by characterizing a viscosity-flow relation. The derived relation shows that the total flow length is proportional to the time integral of a reciprocal of viscosity. The suggested method can be used to any resin system to maximize a resin flow.
엄문광(M.K Um),이상용(S.Y Lee),윤한용(H.Y Yoon),변준형(J.H Byun) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
Many researchers have interested in Liquid composite molding(LCM) technique instead of Autoclave method to fabricate the composite product. In LCM, a fiber preform is placed in a mold cavity and a liquid resin is injected into the mold to impregnate the empty spaces between the fibers. During the process, the resin flow is one of the important factors for process prediction and development. So this paper presents optimal resin infusion temperature in a mold filling. Composite plate which is composed of carbon fabric/RTM6 resin was fabricated by vacuum assisted resin transfer molding(VARTM) process. To optimize a process condition such as an infusion temperature, permeability of the preform and viscosity of the resin were measured. The optimal temperature of the resin during infusion was suggested by characterizing a viscosity-flow relation. The derived relation shows that the total flow length is proportional to the time integral of a reciprocal of viscosity. The suggested method can be used to any resin system to maximize a resin flow.