Engraving (Cycle 225, Din/Iso: G225); Cycle Run; Please Note While Programming - HEIDENHAIN TNC 620 User Manual

11
Cycles: Special Functions

11.6 ENGRAVING (Cycle 225, DIN/ISO: G225)

11.6 ENGRAVING (Cycle 225,
DIN/ISO: G225)

Cycle run

This cycle is used to engrave texts on a flat surface of the
workpiece. The texts can be arranged in a straight line or along an
arc.
1 The TNC positions the tool in the working plane to the starting
point of the first character.
2 The tool plunges perpendicularly to the engraving floor and mills
the character. The TNC retracts the tool to the set-up clearance
between the characters when required. After machining
the character, the tool is at the set-up clearance above the
workpiece surface.
3 This process is repeated for all characters to be engraved.
4 Finally, the TNC retracts the tool to the 2nd set-up clearance.

Please note while programming:

The algebraic sign for the cycle parameter DEPTH
determines the working direction. If you program
DEPTH=0, the cycle will not be executed.
If you engrave the text in a straight line (Q516=0),
the starting point of the first character is determined
by the tool position at the time the cycle is called.
If you engrave the text along an arc (Q516=1), the
arc's center is determined by the tool position at the
time the cycle is called.
The text to be engraved can also be transferred with
a string variable (QS).
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HEIDENHAIN | TNC 620 | User's manual for cycle programming | 9/2015