# Sinumerik L93 Recessing Cycle – Sinumerik 810/820 T

Sinumerik L93 Recessing Cycle allows machining of grooves longitudinal, face, outside and inside.
Also called L93 Cut-in Cycle.

## Sinumerik L93 Recessing Cycle Applications

Sinumerik Recessing Cycle L93 allows machining of

• Longitudinal grooves.
• Grooves on face.
• Outside grooves.
• Inside grooves.

### Tool Offset

Both cutting edges of the grooving tool have to be stored in neighboring tool offset numbers(e.g. D21 and D22).

## Sinumerik L93 Recessing Cycle Format

Sinumerik L93 Recessing Cycle

### Sinumerik L93 Recessing Cycle Parameters

R10 – Type of machining: Longitudinal grooving R10 = 0; Face grooving R10 = 1
R21 – Outside/inside diameter of starting length(absolute)
R22 – Starting point in Z-axis (absolute)
R23 – Control parameter: starting point left or right
R24 – Finishing cut depth x-axis (incremental)
R25 – Finishing cut depth z-axis(incremental)
R26 – Infeed depth, enter without sign (incremental)
R27 – Width of recess (incremental)
R28 – Dwell at recess depth
R29 – Angle left flank (0 to 89 degrees)
R30 – Radius (+) or chamfer (-) at bottom left recess edge
R31 – Recess diameter (absolute)
R32 – Radius or chamfer at top left recess edge
R33 – Radius or chamfer at bottom right recess edge
R34 – Radius or chamfer at top right recess edge
R35 – Angle right flank (0 to 89 degrees)

## Parameter Explanations

R23 Determine the start point
Longitudinal groove

• 1 inside/outside right
• -1 inside/outside left

Face groove

• 1 inside right/left
• -1 outside right left