HEIDENHAIN SW 68894x-03 - Manual (Page 567)

HEIDENHAIN CNC PILOT 640 567
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Roughing – Machining standards
Roughing – 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 (RNWT): RNWT = NWmax – NWmin
Machining standards
 Standard/Full-surface – external/longitudinal [RAL]
 Standard/Full-surface – internal/longitudinal [RIL]
 Standard/Full-surface – external/transverse [RAP]
 Standard/Full-surface – internal/transverse [RIP]
Input for RAL, RIL, RAP, RIP:
 0: Full-surface roughing cycle, including plunge-cutting.
TURN PLUS looks for a tool for full-surface machining.
 1: Standard roughing cycle without plunge-cutting
Tool tolerances
Adjacent angle tolerance [RNWT]
Tolerance range for secondary cutting edge
Relief cutting angle [RFW]
Minimum angle differential between the contour and
secondary cutting edge