粉末粒度对钛合金闭式叶轮成形的影响

尚学文, 崔潇潇, 徐磊, 卢正冠

Effect of Powder Particle Size on Forming Titanium Alloy Shrouded Impeller

SHANG Xuewen, CUI Xiaoxiao, XU Lei, LU Zhengguan

表4 闭式叶轮特定位置(见图11a)的尺寸实测值与模拟值的对比 (mm)

Table 4 Comparisons of the measured and simulated dimensions of shrouded impellers at some positions in Fig.11a

Type 01 02 03 04 05 Powder 1# 89.92 65.69 65.73 8.41 5.14 Powder 2# 88.42 65.17 65.17 8.57 5.17 Powder 3# 85.90 64.78 64.96 8.69 5.10 FEM 86.58 65.18 64.61 8.40 5.00 Maximum deviation 3.34 (3.71%) 0.51 (0.78%) 1.12 (1.70%) 0.29 (3.34%) 0.17 (3.33%) Minimum deviation 0.68 (0.80%) 0.01 (0.02%) 0.35 (0.54%) 0.01 (0.12%) 0.10 (1.96%)