Siemens Sinumerik 840D Operating Turning page 12

Hide thumbs Also See for Sinumerik 840D:

Lifting angle (tool orientation angle) (only for lift-

ing the tool), spindle position for orientated spin-

dle stop in the cycle.

Rotation angle for the straight line, referred to

Advancing angle (only for circular pattern pitch

(Pitch circle)

The cutting edge is not retracted, but re-

turns to the safety gap height with rapid

The cutting edge is moved clear of the

edge of the bore and is then lifted to the

retraction level.

Starting angle offset (only for tapping without a

compensating chuck)

Shearing angle X (only for the location patterns

grid or frame)

Shearing angle Y (only for the location patterns

grid or frame)

Centre drill-

Centering at reduced feedrate

The reduced feedrate is arrived at as fol-

Drilling feedrate F1 < 0,15mm/rev:

Centre drilling feedrate = 30% of F1

Path feedrate F1=> 0,15mm/rev:

Centre drilling feedrate = 0,1 mm/rev

Selection of tabular value:

M1 - M68 (ISO metric)

W3/4"; etc. (Whitworth BSW)

G3/4"; etc. (Whitworth BSP)

1" - 8 UNC; etc. (UNC)

840D/828D SINUMERIK Operate

Sinumerik 828d