Heidenhain MANUALplus 4110 Manuel d'utilisateur télécharger pdf (Page 200)

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101

200 4 Cycle Programming

4.7 Drilling Cycles

Deep-hole drilling

A hole is to be bored through the workpiece outside

the turning center with the cycle "Deep-hole drilling,

axial." This machining operation requires a traversable

spindle and driven tools.

The parameters “1st hole depth P” and “hole depth

reduction value IB” define the individual passes and

the “minimum hole depth JB” limits the hole

reduction value.

As the "return length B" is not defined, the drill

therefore retracts to the starting point after each pass,

remains there for the programmed dwell time, and

then advances again to the safety clearance for the

next pass.

Since this example is to illustrate how you drill a

through hole, the hole end point Z2 is programmed

such that the tool has to drill all the way through the

workpiece before it reaches the end point.

The parameters "AB" and "V" define a feed reduction

for both pre-drilling and through-boring.

Tool data

 WO = 8—Tool orientation

 I = 12—Drilling diameter

 B = 118—Point angle

 H = 1—The tool is a driven tool

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Heidenhain MANUALplus 4110 Manuel d'utilisateur Page 200

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