User's Manual ISO TNC 360 (260020xx, 280490xx) - heidenhain

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8 Cycles 8.3 SL Cycles TNC 360 Subcontour list (SL) cycles are very powerful cycles that enable you to mill any required contour. They are characterized by the following features: • A contour can consist of superimposed subcontours. Pockets and islands compose the subcontours. • The subcontours are programmed as subprograms. • The control automatically superimposes the subcontours and calculates the points of intersection of the subcontours with each other. Cycle G37: CONTOUR GEOMETRY contains the subcontour list and is a purely geometric cycle, containing no cutting data or infeed values. The machining data are defined in the following cycles: • PILOT DRILLING G56 • ROUGH-OUT G57 • CONTOUR MILLING G58/G59 Each subprogram defines whether radius compensation G41 or G42 applies. The sequence of points determines the direction of rotation in which the contour is to be machined. The control deduces from these data whether the specific subprogram describes a pocket or an island: • For a pocket the tool path is inside the contour • For an island the tool path is outside the contour • The way the SL contour is machined is determined by MP 7420. • We recommend a graphical test run before you machine the part. This will show whether all contours were correctly defined. • All coordinate transformations are allowed in the subprograms for the subcontours. • F and M words are ignored in the subprograms for the subcontours. The following examples will at first use only the ROUGH-OUT cycle. Later, as the examples become more complex, the full range of possibilities of this group of cycles will be illustrated. Programming parallel axes Machining operations can also be programmed in parallel axes as SL cycles. The parallel axes must lie in the working plane. (In this case, graphic simulation is not available). Input Parallel axes must be programmed in the first coordinate block (positioning block, I,J,K block) of the first subprogram that is called with cycle G37: CONTOUR GEOMETRY. All other coordinates are then ignored. 8-15
8 Cycles 8.3 SL Cycles CONTOUR GEOMETRY G37 8-16 Application Cycle G37: CONTOUR GEOMETRY contains the list of subcontours that make up the complete contour. Input data Enter the LABEL numbers of the subprograms. A maximum of 12 subprograms can be listed. Effect Cycle G37 becomes effective as soon as it is defined. . . . . . . . . . C D A B Fig. 8.13: Example of an SL contour: A, B = pockets; C, D = islands Example: G99 T3 L+0 R+3.5 * T3 G17 S1500 * .......................................................... Working plane perpendicular to Z axis G37 P01 1 P02 2 P03 3 * G00 G40 Z+100 M2 * G98 L1 ........................................................................ First contour label of the CONTOUR GEOMETRY cycle G37 G01 G42 X+0 Y+10 .................................................... Machining in the X/Y plane X+20 Y+10 I+50 J+50 TNC 360
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February 1994 HEIDENHAIN User's Man
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TNC Guideline: From workpiece drawi
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How to use this manual TNC 360 This
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Contents User's Manual TNC 360 ISO
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2 Manual Operation and Setup TNC 36
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4 Programming TNC 360 4.1 Editing P
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6 Subprograms and Program Section R
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8 Cycles TNC 360 8.1 General Overvi
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10 MOD Functions TNC 360 10.1 Selec
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1 Introduction 1.1 The TNC 360 1-2
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1 Introduction 1.1 The TNC 360 1-4
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1 Introduction 1.2 Fundamentals of
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1 Introduction 1.3 Switch-On 1-14 S
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1 Introduction 1.4 Graphics and Sta
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1 Introduction 1.4 Graphics and Sta
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1 Introduction 1.5 Programs Selecti
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2 Manual Operation and Setup 2.1 Mo
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2 Manual Operation and Setup 2.2 Sp
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2 Manual Operation and Setup 2.3 Se
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2 Manual Operation and Setup 2.4 3D
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2 Manual Operation and Setup 2.4 3D
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2 Manual Operation and Setup 2.6 Me
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3 Test Run and Program Run 3.2 Prog
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3 Test Run and Program Run 3.2 Prog
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3 Test Run and Program Run 3.3 Bloc
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4 Programming 4.1 Editing Part Prog
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4 Programming 4.2 Tools TNC 360 Eac
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4 Programming 4.2 Tools Entering to
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4 Programming 4.2 Tools Calling too
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4 Programming 4.3 Tool Compensation
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4 Programming 4.3 Tool Compensation
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4 Programming 4.4 Program Creation
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4 Programming 4.5 Entering Tool-Rel
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4 Programming 4.6 Entering Miscella
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5 Programming Tool Movements 5.1 Ge
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5 Programming Tool Movements 5.2 Co
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Page 179 and 180: 8 Cycles 8.3 SL Cycles CONTOUR MILL
Page 183 and 184: 8 Cycles 8.4 Cycles for Coordinate
Page 191 and 192: 8 Cycles 8.5 Other Cycles DWELL TIM
Page 193 and 194: 9 External Data Transfer 9-2 The TN
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Page 197 and 198: 10 MOD Functions 10.3 Entering the
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11 Tables, Overviews, Diagrams 11-2
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User's Manual ISO TNC 360 (260020xx, 280490xx) - heidenhain

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