Siemens SINUMERIK 808D Operating Guide

Operating and Programming — Milling Page 102 808D
ISO
Mode
s
Basic Theory
G84 execution operation graphic：
With command G99 without operation in red line
With command G98 with operation in red line
G84 Tapping cycle
Common programming structures:
G84 X—Y—Z—R—P—F—K
Motion process:
① Drilling motion (-Z) → cutting feed
② Motion at the bottom of the hole →
spindle rotation in negative direction
③ Retraction motion (+Z) → cutting feed
G85 boring cycle
Common programming structures:
G85 X—Y—Z—R—F—K
Motion process：
① Drilling motion (-Z) → cutting feed
② Motion at the bottom of the hole →
none
③ Retraction motion (+Z) → cutting feed
G85 execution operation graphic：
With command G99 without operation in red line
With command G98 with operation in red line
Except that the spindle is not rotating at the
bottom of the hole, G85 is same as G84
G86 execution operation graphic：
With command G99 without operation in red line
With command G98 with operation in red line
Except for the stop at the bottom of the hole,
G86 is same as G81
G86 boring cycle
Common programming structures:
G86 X—Y—Z—R—F—K
Motion process:
① Drilling motion (-Z) → cutting feed
② Motion at the bottom of the hole →
spindle stop
③ Retraction motion (+Z) → fast feed
G89 boring cycle
Common programming structures:
G89 X—Y—Z—R—P—F—L
Motion process:
① Drilling motion (-Z) → cutting feed
② Motion at the bottom of the hole →
pause
③ Retraction motion (+Z) → cutting
feed
G89 execution operation graphic：
With command G99 without operation in red line
With command G98 with operation in red line
Except that the spindle stops at the bottom of the
hole, G89 is same as G85
Origin
spindle CW
after pause
R Point
Z Point
spindle CCW
after pause
Origin
R Point
Z Point
Origin
R Point
Z Point
Pause
spindle CW
after pause
Origin
spindle CW
after pause
R Point
Z Point
spindle stop
after pause

Siemens SINUMERIK 808D Specifications

General

Brand	Siemens
Model	SINUMERIK 808D
Category	Control Unit
Language	English