HEIDENHAIN TNC 640

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Programming Aids | Cutting data calculator

218

HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017

Window for feed rate calculation:

Code letter Meaning

S: Spindle speed (rpm)

Z: Number of teeth on the tool (n)

FZ: Feed per tooth (mm/tooth)

FU: Feed rate per revolution (mm/1)

F= Result for feed rate (mm/min)

You can transfer the feed rate from the TOOL CALL

block into subsequent traversing blocks and cycles by

pressing the F AUTO soft key. If you have to change the

feed rate later, you only need to adjust the feed rate

value in the TOOL CALL block.

Functions in the cutting data calculator:

Soft key Function

Load the spindle speed from the cutting data

calculator form into an open dialog field.

Load the feed rate from the cutting data calcula-

tor form into an open dialog field.

Load the cutting speed from the cutting data

calculator form into an open dialog field.

Load the feed per tooth from the cutting data

calculator form into an open dialog field.

Load the feed per revolution from the cutting

data calculator form into an open dialog field.

Load the tool radius into the cutting data calcu-

lator form

Load the spindle speed from the open dialog

field into the cutting data calculator form

Load the feed rate from the open dialog field

into the cutting data calculator form

Load the feed per revolution from the open

dialog field into the cutting data calculator form

Load the feed per tooth from the open dialog

field into the cutting data calculator form

Load the value from an open dialog field into

the cutting data calculator form

Switch to the pocket calculator

HEIDENHAIN TNC 640 - Page 218