模锻件结构设计:加强肋间距的极限值 肋高h 钢及合金钢、钛合金 铝合金 镁合金 amin amax amin amax amin amax ＜5 10 30S 10 35S 10 30S 6～10 12 30S 10 35S 12 30S 11～16 20 30S 15 35S 20 30S 17～25 30 25S 20 30S 30 25S 26～35 45 25S 35 30S 50 25S 36～50 60 20S 50 25S 70 20S 51～70 80 20S 65 25S 100 20S 71～100 — — 80 25S — —