Table Feed

 

Table Feed Formula
\( TF  \;=\;  FPT \; SS \; Z \)     (Table Feed) \( FPT  \;=\;  TF \;/\; SS \; Z\) \( SS  \;=\;  TF \;/\; FPT \; Z \) \( Z  \;=\;  TF \;/\; FPT \; SS \)
Symbol	English	Metric
\( TF \) = Table Feed	\(in\;/\;min\)	\(mm\;/\;min\)
\( FPT \) = Feed per Tooth	\(in\;/\;tooth\)	\(mm\;/\;tooth\)
\( SS \) = Spindle Speed	\(rev\;/\;min\)	\(rev\;/\;min\)
\( Z \) = Number of Teeth	\(dimensionless\)	\(dimensionless\)

Table feed is the linear speed at which the workpiece or cutting tool moves during a machining operation.  Table feed affects surface finish, material removal rate, and tool life.  Properly adjusting table feed helps in achieving the desired material removal rate, surface quality, and tool efficiency while avoiding tool breakage or workpiece damage.