HEIDENHAIN 548431-05, User Manual, Page: 635 / 722

Organization mode of operation | Parameters
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HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017
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Finishing – Tool tolerances
For tool selection, the following applies:
Tool angle EW : EW >= mkw ( mkw : ascending contour angle)
Tool angle EW and point angle SW : NWmin < ( EW + SW ) <
NWmax
Adjacent angle FNWT : FNWT = NWmax – NWmin
Tool tolerances
Parameter Meaning
Adjacent angle tolerance
FNWT Tolerance range for secondary
cutting edge
Relief cutting angle
FFW Minimum angle differential
between the contour and
secondary cutting edge
Finishing – Approach and departure
Approach and departure movements are at rapid traverse (
G0 ).
Approach and departure
Parameter
Approach – External finishing ANFA
Approach – Internal finishing
ANFI
Departure – External finishing ABFA
Departure – Internal finishing ABFI
Approach or departure strategy:
1: Move simultaneously in X and Z directions
2: First X, then Z direction
3: First Z, then X direction