Feed & Speed Calc Inch Metric
Tool Diameter (D) 0.12 3.048
# of Teeth (T) 3
Surface Feet Per. Min. (SFM) 650 198.12
Feed Per Tooth (FPT) 0.0011 0.02794
Part Diameter (DW) 2.5 63.5
Width of Cut % of Tool Dia. (WOC) 10
Depth of Cut (DOC) 0.5 12.7
Material Factor (MF) 1
RPM 20692
IPM (Linear Feed) 68.28 1734.38
Feed at CL - OD Radius (FCLOD) 71.6 1817.63
Feed at CL - ID Radius (FCLID) 65.0 1651.13
Metal Removal Rate (MRR) 0.41
Horsepower Consumption (HP) 0.41
Chip Thinning Adj. IPM (AFPM) 152.68 3878.18
Tap Drill Calc Inch
Thread DIA 0.25
% of full thread 75
TPI 28
Tap Drill Size 0.2152
Disclaimer: All information provided in this document has been
gathered from online sources and is provided only as a reference.
User assumes all responsibilities for results based on information
gained by this document. Data provided should only be used as a
reference and thoroughly checked before using.
Disclaimer: All information provided in this document has been
gathered from online sources and is provided only as a reference.
User assumes all responsibilities for results based on information
gained by this document. Data provided should only be used as a
reference and thoroughly checked before using.
Drilling Feed & Speed Inch Metric Abbreviati
Tool Diameter 0.55 13.97 SFM
Surface Feet Per. Min. (SFM) 60 18.288 IPM
Inch Per Revolution (IPR) 0.005 0.127 FPT
WOC
RPM 417 RPM
IPM 2.1 52.92 AFPM
T
Material Factor Referance FCLOD
MF - steel = 1 FCLID
MF - gray iron = .65 DW
MF - aluminum = .3 HP
MRR
Feed Degrees Per Minute Inch Metric MF
Linear FPM (IPM) 30 762 DOC
Part Radius (R) 2 50.8
Formula
Degrees Per Min. 859.44 RPM = 3.82 x SFM / D
IPM = FPT x T x RPM
Arc Length Inch Metric FCLID = (IPM x (DW - D)) / DW
Diameter 4 101.6 FCLOD = (IPM x (DW + D)) / DW
Geometry Angle 70 AFPM = IPM x sqroot of ((D/2) / (WO
HP = MMR x MF
Arc Length 2.443461 62.06391 MMR = IPM x WOC x DOC
Tap Drill Size = Thread DIA - ((0.01299 x
Drill RPM = 3.8197/ D x SFM
Drill IPM = IPR x RPM
DegPerMin = F(IPM) x 57.296 / R
Arc Length= Diameter x 3.1415 x (an
Abbreviations
Surface Feet per Minute
Inches per Minute
Feed per Tooth
Width of Cut
Revolutions per Minute
Adjusted Feed per Minute
# of Teeth (Flutes)
Feed at Center Line - OD Radius
Feed at Center Line - ID Radius
Part Diameter (for radial feed calc)
Horsepower Consumption
Metal Removal Rate - Cubic Inches per Min.
Material Factor
Depth of Cut
Formulas
RPM = 3.82 x SFM / D
IPM = FPT x T x RPM
FCLID = (IPM x (DW - D)) / DW
FCLOD = (IPM x (DW + D)) / DW
AFPM = IPM x sqroot of ((D/2) / (WOC/100 x D))
HP = MMR x MF
MMR = IPM x WOC x DOC
Tap Drill Size = Thread DIA - ((0.01299 x % of full thread) / TPI)
Drill RPM = 3.8197/ D x SFM
Drill IPM = IPR x RPM
DegPerMin = F(IPM) x 57.296 / R
Arc Length= Diameter x 3.1415 x (angle/360)
References: CDTooling.com, www.the-carbide-end-mill-store.com
References: Advent-threadmill.com
References: www.norsemandrill.com, www.wellsindustrial.ca, www.rockrivertool.com
Reference: mooncutter.com
Recommended
FPT .001 - .005
Radial Chip Thickness
SFM 230
RPM 1757.2
DIA 0.5
# Teeth 5
AP DOC 0.5
AE Radial 0.015
IPT 0.002
0.8836
0.341174442185
New IPT 0.0059
IPM 51.5044
