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G83 Peck drilling cycle is a cycle used for deep-hole drilling.

Drilling operation is performed in multiple pecks.

G83 command provides the possibility of breaking the drilling process and better cleaning of the chips and and cooling of the drill.

G83 X... Y... Z... R... Q... F... K...

 
 X Position of hole in XY plane (X coordinate of the hole center).
  Y Position of hole in XY plane (Y coordinate of the hole center).
  Z Depth (from R-plane to Z-depth).
  R R plane position (Retract Plane).
  Q Peck.
  F Feedrate.
  K Number of drilling cycles.

 

How G83 Peck Drilling Cycle works.

 

G83 Peck Drilling Cycle

 

1 - Rapid positioning to X,Y coordinates of the hole center.
2 - Rapid positioning to Retract Plane R.
3 - Drilling operation ( Q depth ).
4 - Retraction to R-plane.
5 - Rapid positioning to (Q - d) deep (d value is specified in parameters).
6 - Drilling operation ((Q + d) depth).
7 - Retraction to R-plane.
8 - Rapid positioning to (Q + Q - d) deep (d value is specified in parameters).
9 - Drilling operation.

G98 and G99 modes.

G98 - Drill will go to the initial level.
G99 - Drill will go to Retract Plane (R plane).

Example of using G83 in an CNC program.

%
O931 (G83 example)    (Program number (O931) and Program name (G83 example)
G00 Z0.5                             (Safe Z)
G00 X61 Y16                       (go to X,Y coordinates of the hole center)
G83 X61 Y16 Z-14 Q6 R1.8 F55       (Peck = 6)
G00 Z0.5                              (Safe Z)
G00 X0 Y0                            (go to machine Zero)
M30                                    (End)
%

 

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