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HEIDENHAIN iTNC 530 (34049x-08) Cycle programming User Manual

Page 272

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272

Fixed cycles: multipass milling

10

.5 F

A

CE MILLING (Cy

cle 232, DIN/ISO:

G232)

Maximum plunging depth

Q202 (incremental value):

Maximum

amount that the tool is advanced each

time. The TNC calculates the actual plunging depth

from the difference between the end point and

starting point of the tool axis (taking the finishing

allowance into account), so that uniform plunging

depths are used each time. Input range 0 to

99999.9999

Allowance for floor

Q369 (incremental): Distance

used for the last infeed. Input range 0 to 99999.9999

Max. path overlap factor

Q370: Maximum stepover

factor k. The TNC calculates the actual stepover from

the second side length (Q219) and the tool radius so

that a constant stepover is used for machining. If you

have entered a radius R2 in the tool table (e.g. tooth

radius when using a face-milling cutter), the TNC

reduces the stepover accordingly. Input range 0.1 to

1.9999; alternatively PREDEF

Feed rate for milling

Q207: Traversing speed of the

tool during milling in mm/min. Input range 0 to

99999.9999; alternatively FAUTO, FU, FZ

Feed rate for finishing

Q385: Traversing speed of

the tool in mm/min, while milling the last infeed. Input

range 0 to 99999.9999; alternatively FAUTO, FU, FZ

Feed rate for pre-positioning

Q253: Traversing

speed of the tool in mm/min when approaching the

starting position and when moving to the next pass.

If you are moving the tool transversely to the material

(Q389=1), the TNC moves the tool at the feed rate for

milling Q207. Input range 0 to 99999.9999;

alternatively FMAX, FAUTO, PREDEF

X

Z

Q202

Q200

Q204

Q369

X

Y

Q357

Q253

Q207

k

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