コンピュータシミュレーションを用いた微粉末圧粉体の焼結による変形の予測

抄録

A new method for predicting deformation due to sintering of powder compact was suggested: the data of dimensional change map (DC map) and density distribution map for carbonyl nickel green compact of 1 mm thickness measured on an acoustic microscope are employed to calculate the deformation due to sintering. We suggest a new technique to predict deformation by simple computer simulation with these data. To decrease the error in calculation, especially, the influence of the edges of DC map upon this simulation is considered in the computing progress. These results in the calculated outlines of the specimen similar to the shapes of the sintered compacts. DC map, converted from the acoustic image of green compact, thus, includes information of deformation after sintering. It is capable of predicting deformation due to sintering by computer simulation with the DC map for simple shape green compacts.