Heidenhain MANUALplus 4110 Manuel d'utilisateur télécharger pdf (Page 265)

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HEIDENHAIN MANUALplus 4110 265

5.5 ICP Contour Elements, Turning Contour

Undercuts, turning contour

Select form elements.

Select thread undercut DIN 76.

For thread undercut DIN 76, the diameter of the longitudinal element

represents the thread diameter (or, with internal threads, the core

diameter).

Parameters

 XS, ZS starting point in X/Z: Starting point of undercut

 X, Z target point in X/Z: End point of undercut

 FP thread pitch—default: Value from standard table

 I undercut diameter—default: Value from standard table

 K undercut length—default: Value from standard table

 W undercut angle—default: Value from standard table

 R undercut radius—default: Value from standard table

 J element position—default: 1

 J=1: Undercut starts with the longitudinal element and ends with

the transverse element.

 J=–1: Undercut starts with the transverse element and ends with

the longitudinal element.

 F special feed

Parameters that are not defined are automatically calculated from the

standard table (see “DIN 76—undercut parameters” on page 525):

 The "thread pitch FP" is determined from the diameter ("starting

point XS").

 The parameters I, K, W, and R are calculated from the thread pitch

FP.

Thread undercut DIN 76

 If you are programming an internal thread, it is advisable

to preset the "thread pitch FP," since the diameter of the

longitudinal element is not the thread diameter. If you

have MANUALplus calculate the thread pitch

automatically, slight deviations may occur.

 The "element position J" cannot be entered when

superimposing the undercut and cannot be changed

when programming changes to ICP contours. (The

contour corner has already been clearly defined.)

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Heidenhain MANUALplus 4110 Manuel d'utilisateur Page 265

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