研究論文
圧縮荷重負荷によるアルミニウム合金ダイカストの鋳巣欠陥の低減
2006 年 56 巻 2 号 p. 112-116
詳細
2006 年 56 巻 2 号 p. 112-116
The porosity in die castings has an influence on their mechanical properties or air leakage efficiency. To reduce the porosity, we examined compression tests of disk shaped ADC12 aluminum alloy die castings at room temperature. Also, finite element analyses are carried out corresponding to the compression tests. The porosity of the die castings decreases when the compression strain of the specimen increases, particularly in the middle area of the specimen where many defects exist. Thus, this type of compression load is significantly efficient in reducing the variation in the quality of die castings. However, it is necessary to investigate the condition of compression strain that prevents the initiation of cracks during the compression loading.
