5238-E P-168
SECTION 8 LATHE AUTO-PROGRAMMING FUNCTION (LAP)
2.
G Codes Used to Designate Cutting Mode (G80, G81, G82,
G83)
There are five cutting modes available for the lathe automatic program (LAP) function:
Note: "AP" is the abbreviation of "Auto Program".
For details on AP modes I through V and programs, refer to sections 10-1 to 10-6.
The correspondence between the cutting modes listed above and the G codes that can be used with
LAP is as follows.
LE33013R0301000020001
Details of G85, G84, G86, G87 and G88 are given in sections 5. through 9. below.
AP Mode I
: for bar turning
AP Mode II
: for copy turning
AP Mode III : for thread cutting
AP Mode IV : for high-speed bar turning (LAP4 only)
AP Mode V
: for bar copy turning (LAP4 only)
G85 : Used to call out bar rough turning cycle.
AP Mode I/AP Mode IV
G84 : Change of conditions for bar rough
turning
G86 : Used to call out copy turning cycle.
AP Mode II/AP Mode V
G87 : Used to call out finish turning cycle.
G88 : Used to call out continuous thread
cutting cycle.
AP Mode III
G83 : Start of blank shape definition
(LAP4 only)
G81 : Start of longitudinal contour definition
G82 : Start of transverse (on end face)
contour definition
G80 : End of contour definition
