Computer Simulation Analysis on the Machinability of Alumina Dispersion Enforced Copper Alloy for High Performance Compact Heat Exchanger

摘要

Feasibility study on a HTGR-GT (high Temperature Gas cooled Reactor-Gas Turbine) system is examining the application of the high strength/high thermal conductivity alumina dispersed copper (AL-25) in the ultra-fine rectangle plate fin of the recuperator for the system. However, it is very difficult to manufacture a ultra-fine fin by large-scale plastic deformation from the hard and brittle Al-25 foil. Therefor, in present study, to establish the fine fin manufacturing technology of the AL-25 foil, it did the processing simula- tion of the fine fin first by the large-scale elasto-plastic finite element analysis(FEM) and it estimated a forming limit.