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1 0 sl cy cles with simple cont our f o rm ula – HEIDENHAIN iTNC 530 (340 49x-04) User Manual

Page 496

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496

8 Programming: Cycles

8.1

0

SL Cy

cles with Simple Cont

our F

o

rm

ula

Characteristics of the fixed cycles

„

The TNC automatically positions the tool to the set-up clearance
before a cycle.

„

Each level of infeed depth is milled without interruptions since the
cutter traverses around islands instead of over them.

„

The radius of “inside corners” can be programmed—the tool keeps
moving to prevent surface blemishes at inside corners (this applies
for the outermost pass in the Rough-out and Side Finishing cycles).

„

The contour is approached on a tangential arc for side finishing.

„

For floor finishing, the tool again approaches the workpiece on a
tangential arc (for tool axis Z, for example, the arc may be in the Z/X
plane).

„

The contour is machined throughout in either climb or up-cut milling.

The machining data (such as milling depth, finishing allowance and
set-up clearance) are entered as CONTOUR DATA in Cycle 20.

With MP7420 you can determine where the tool is
positioned at the end of Cycles 21 to 24.