HEIDENHAIN TNC 426 B User Manual

8 Programming: Cycles
212
8.6 Cycles for Multipass Milling
The TNC offers four cycles for machining surfaces with the
following characteristics:
■
Created by digitizing or with a CAD/CAM system
■
Flat, rectangular surfaces
■
Flat, oblique-angled surfaces
■
Surfaces that are inclined in any way
■
Twisted surfaces
Cycle Soft key
30 RUN DIGITIZED DATA
For multipass milling of digitized surface data
in several infeeds
230 MULTIPASS MILLING
For flat rectangular surfaces
231 RULED SURFACE
For oblique, inclined or twisted surfaces
RUN DIGITIZED DATA (Cycle 30)
1 From the current position, the TNC positions the tool in rapid
traverse FMAX in the tool axis to the set-up clearance above the
MAX point that you have programmed in the cycle.
2 The tool then moves in FMAX in the working plane to the MIN
point you have programmed in the cycle.
3 From this point, the tool advances to the first contour point at the
feed rate for plunging.
4 The TNC subsequently processes all points that are stored in the
digitizing data file at the feed rate for milling. If necessary, the
TNC retracts the tool between machining operations to set-up
clearance if specific areas are to be left unmachined.
5 At the end of the cycle, the tool is retracted in FMAX to set-up
clearance.
8.6 Cycles for Multipass Milling
kkap8.pm6 30.06.2006, 07:03212
www.EngineeringBooksPdf.com

HEIDENHAIN TNC 426 B Specifications

General

Brand	HEIDENHAIN
Model	TNC 426 B
Category	Control Systems
Language	English