lm=(Ls+Ls.Scp%+3/4Δ)0-δz (4.3)
式中:lm —— 型芯径向名义尺寸(㎜); D —— 制品的名义尺寸(㎜); (1) 动模上的主型芯 16.5㎜
000.553
=[(1++)]= 16.59+0.018=160.61) 16.5 0.027lm1-0.027/3 -0.009 ㎜
1004
lm2 = [(1+0.55100) 15.8+3
4
0.027)]00-0.027/3 = 15.90-0.009 ㎜
lm3 = [(1+0.55100) 17+3
4
0.033)]0= 17.110-0.033/3 -0.011 ㎜ lm4 = [(1+0.55100) 23.1+3
004
0.033)]-0.033/3 = 23.65-0.011 ㎜ lm5 = [(1+0.55100) 27+3
004
0.033)]-0.033/3 = 27.17-0.011 ㎜ lm6 = [(1+0.5500100) 28+3
4
0.033)]-0.033/3 = 28.18-0.011 ㎜ (2) 动模上的侧型芯
lm6 = [(1+
0.55100) 4+3
4
0.014)]0= 4.030-0.014/3 -0.005 ㎜ 4.2.2 型芯高度尺寸
hm=(Hs+Hs.Scp%+2/3Δ)0-δz (4.4)
式中: hm —— 型芯高度名义尺寸(㎜); D —— 制品孔深的名义尺寸(㎜); (1) 动模上主型芯高度
hm=[(1+0.55100) 0.5+23
0.014)]0-0.014/3 = 0.510-0.005 ㎜
hm1=[(1+0.55100) 1+23
0.014)]0-0.014/3 = 1.010-0.005 ㎜
hm2=[(1+0.55100) 2+23
0.014)]0-0.014/3 = 2.020-0.005 ㎜
hm3=[(1+0.55100) 10.5+23
0.027)]0-0.027/3 = 10.580-0.009 ㎜hm4=[(1+0.55100) 6.3+23
0.022)]0-0.022/3 = 0.510-0.007 ㎜
hm5=[(1+0.55100) 2.8+23
0.014)]0-0.014/3 = 2.820-0.005 ㎜