HEIDENHAIN TNC 410 User Manual

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HEIDENHAIN TNC 410

STUD FINISHING (Cycle 213)

1 The TNC moves the tool in the tool axis to set-up clearance, or —

if programmed — to the 2nd set-up clearance, and subsequently
to the center of the stud.

2 From the stud center, the tool moves in the working plane to the

starting point for machining. The starting point lies to the right of
the stud by a distance approx. 3.5 times the tool radius.

3 If the tool is at the 2nd set-up clearance, it moves in rapid traverse

FMAX to set-up clearance, and from there advances to the first
plunging depth at the feed rate for plunging.

4 The tool then moves tangentially to the contour of the finished

part and, using climb milling, machines one revolution.

5 After this, the tool departs the contour tangentially and returns to

the starting point in the working plane.

6 This process (3 to 5) is repeated until the programmed depth is

reached.

7 At the end of the cycle, the TNC retracts the tool in FMAX to set-

up clearance, or — if programmed — to the 2nd set-up clearance,
and finally to the center of the stud (end position = starting
position).

Before programming, note the following:

The algebraic sign for the depth parameter determines
the working direction.

If you want to clear and finish the stud with the same
tool, use a center-cut end mill (ISO 1641) and enter a low
feed rate for plunging.

Set-up clearance Q200 (incremental value): Distance
between tool tip and workpiece surface.

Depth Q201 (incremental value): Distance between
workpiece surface and bottom of stud

Feed rate for plunging Q206: Traversing speed of the
tool in mm/min when moving to depth. If you are
plunge-cutting into the material, enter a low value; if
you have already cleared the stud, enter a higher feed
rate.

Plunging depth Q202 (incremental value):
Infeed per cut Enter a value greater than 0.

Feed rate for milling Q207: Traversing speed of the
tool in mm/min while milling.

Q200

Q201

Q206

Q203

Q204

Q202

8.4 Cy

cles f

or Milling P

ets,

uds and Slots

Example NC blocks:

35 CYCL DEF 213 STUD FINISHING

Q200=2

;SET-UP CLEARANCE

Q201=-20

;DEPTH

Q206=150

;FEED RATE FOR PLUNGING

Q202=5

;PLUNGING DEPTH

Q207=500

;FEED RATE FOR MILLING

Q203=+0

;SURFACE COORDINATE

Q204=50

;2. SET-UP CLEARANCE

Q216=+50

;CENTER IN 1ST AXIS

Q217=+50

;CENTER IN 2ND AXIS

Q218=80

;1ST SIDE LENGTH

Q219=60

;2ND SIDE LENGTH

Q220=5

;CORNER RADIUS

Q221=0

;ALLOWANCE