Cutting Speed - Drilling - Calculated Industries 4088 User Manual

7. Calculate the RPM:
cutting speed – Drilling
Find the Cutting Speed for Drilling (6) 1020-Low Carbon
Steel (1) with a 0.5" HSS (1) drill:
1. select the Process:
2. select the Tooling:
3. select the Material:
4. Enter the Drill size:
5. Find the Cutting speed:
6. Calculate the spindle speed:
S
S
g* all cleareD
6P
1L
1N
.5D
S
S
cUt speeD
/Min
rpM
DrillinG
hiGh speeD steel
tool
1020-lo c. steel
Matl
1/2" Drill
siZe
cUt speeD
/Min
rpM
User's Guide — 27
370.
2827.
0.
6.
1.
1.
0.500 inch
85. feet
649.
(cont'd)