HYDROK
Use and limits of use
50
Order h49 7144.907-333
INFORMATION
𝑆
from Table 6
𝑐
from Table 8
𝑘
𝑐
from Table 9 [interpolated for
𝑓 = 0.25𝑚𝑚
]
𝜇
𝑎
, 𝜇
𝑡
from Table 10
𝑟
𝑠
, 𝑚
from Table 11
I
𝐹
𝑟𝑎𝑑 𝑒𝑟𝑓
= 𝑆 ∗ 𝑐 ∗ (1.6 ∗ (𝐹
𝑠𝑧
+ 𝐹
𝑠𝑘
) + 𝐹
𝑓𝑧
)
from Table 6
𝑆 = 1.6
from Table 8
𝑐 = 1.3
𝐹
𝑟𝑎𝑑 𝑒𝑟𝑓
= 1.6 ∗ 1.3 ∗ (1.6 ∗ (𝐹
𝑠𝑧
+ 𝐹
𝑠𝑘
) + 𝐹
𝑓𝑧
)
II
𝐹
𝑠𝑧
= 1.3 ∗ √(
𝐹
𝑐
∗𝑑
𝑧
+2∗𝑀
𝐵
𝑑
𝑠𝑝
∗𝜇
𝑡
)
2
+ (
𝐹
𝑐
+𝐹
𝐵
𝜇
𝑎
)
2
from Table 10
𝜇
𝑡
= 0.14
,
𝜇
𝑎
= 0.16
Turning:
𝐹
𝑐
= 1.3 ∗ 𝑎
𝑝
∗ 𝑓 ∗ 𝑘
𝑐
𝐹
𝑐
= 1.3 ∗ 1.5𝑚𝑚 ∗ 0.25𝑚𝑚 ∗ 2515
𝑁
𝑚𝑚
2
= 1226𝑁
Drilling:
Not relevant here because no drilling is envis-
aged. Therefore
𝐹
𝐵
= 0𝑁
and
𝑀
𝐵
= 0𝑁𝑚𝑚
𝐹
𝑠𝑧
= 1.3 ∗ √(
1226𝑁∗57𝑚𝑚+2∗0𝑁𝑚𝑚
60𝑚𝑚∗0.14
)
2
+ (
1226𝑁+0𝑁
0.16
)
2
𝐹
𝑠𝑧
= 14703𝑁
