Peck drilling cycle (G83, G87)

Peck drilling cycle (G83, G87):-

Format:-

G83 X(U)_ C(H)_ Z(W)_ R_ Q_ P_ F_ K_ M_ ;

or

G87 Z(W)_ C(H)_ X(U)_ R_ Q_ P_ F_ K_ M_ ;

X_ C_ or Z_ C_  :  Hole position data

Z_ or X_   :  The distance from point R to the bottom of the hole

R_  :  The distance from the initial level to point R level

Q_  :  Depth of cut for each cutting feed

P_  :  Dwell time at the bottom of a hole

F_  :  Cutting feedrate

K_  :  Number of repeats (When it is needed.)

M_  :  M code for C–axis clamp (When it is needed.)

Examples:-

       M51  ;                Setting C–axis index mode ON

       M3 S2000 ;         Rotating the drill

      G00 X50.0 C0.0 ; Positioning the drill along the X– and C–axes

      G83 Z–40.0 R–5.0 Q5000 F5.0 M31 ; Drilling hole 1

      C90.0 M31 ;                Drilling hole 2

      C180.0 M31 ;      Drilling hole 3

      C270.0 M31 ;      Drilling hole 4

      G80 M05 ;   Canceling the drilling cycle and stopping drill rotation

      M50 ;                  Setting C–axis index mode off

Notes:-

                   If the depth of cut for each cutting feed (Q) is not commanded, normal drilling is performed.(see the description of the drilling cycle.)