1 fundamentals, Overview, 1 f undamentals 6.1 fundamentals – HEIDENHAIN TNC 320 (340 55x-05) Cycle programming User Manual

Page 160

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160

Fixed Cycles: Pattern Definitions

6.1 F

undamentals

6.1 Fundamentals

Overview

The TNC provides two cycles for machining point patterns directly:

You can combine Cycle 220 and Cycle 221 with the following fixed
cycles:

Cycle

Soft key

Page

220 POLAR PATTERN

Page 161

221 CARTESIAN PATTERN

Page 164

If you have to machine irregular point patterns, use CYCL
CALL PAT

(see "Point Tables" on page 54) to develop point

tables.

More regular point patterns are available with the PATTERN
DEF

function (see "Pattern Definition PATTERN DEF" on

page 46).

Cycle 200

DRILLING

Cycle 201

REAMING

Cycle 202

BORING

Cycle 203

UNIVERSAL DRILLING

Cycle 204

BACK BORING

Cycle 205

UNIVERSAL PECKING

Cycle 206

TAPPING NEW with a floating tap holder

Cycle 207

RIGID TAPPING without a floating tap holder NEW

Cycle 208

BORE MILLING

Cycle 209

TAPPING WITH CHIP BREAKING

Cycle 240

CENTERING

Cycle 251

RECTANGULAR POCKET

Cycle 252

CIRCULAR POCKET MILLING

Cycle 253

SLOT MILLING

Cycle 254

CIRCULAR SLOT (can only be combined with
Cycle 221)

Cycle 256

RECTANGULAR STUD

Cycle 257

CIRCULAR STUD

Cycle 262

THREAD MILLING

Cycle 263

THREAD MILLING/COUNTERSINKING

Cycle 264

THREAD DRILLING/MILLING

Cycle 265

HELICAL THREAD DRILLING/MILLING

Cycle 267

OUTSIDE THREAD MILLING

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