Heidenhain MANUALplus 4110 User Manual download pdf (Page 182)

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182 4 Cycle Programming

4.6 Thread and Undercut Cycles

Undercut DIN 509 E

Call the thread-cutting menu.

Select the "Undercut DIN 509 E" cycle.

With return soft key:

Off: When the cycle is completed, the tool remains at

the cycle end position (see figures at right).

On: Tool returns to the starting point (see figures on

next page).

The cycle machines a thread undercut according to DIN 509 type E, a

cylinder start chamfer, then the adjoining cylinder, and finishes with

the plane surface. You can define a finishing oversize for the area of

the cylinder. The cylinder start chamfer is executed when you enter at

least one of the parameters "B" or "RB."

Cycle parameters

 X, Z starting point

 X1, Z1 starting point of cylinder

 X2, Z2 end point on plane surface

 E reduced feed rate for the plunge cut and the thread chamfer—

default: Feed rate F

 T tool number

 S spindle speed / cutting speed

 F feed per revolution

 I undercut depth—default: Value from standard table

 K undercut length—default: Value from standard table

 W undercut angle—default: Value from standard table

 R undercut radius (on both sides of the undercut)—default: Value

from standard table

 B cylinder start chamfer—default: No start chamfer

 WB 1st cut angle—default: 45°

 RB chamfer radius—default: No chamfer radius

 U finishing oversize for the area of the cylinder—default: 0

All parameters that you enter will be accounted for—even if the

standard table prescribes other values. If the parameters I, K, W and

R are not defined, MANUALplus determines these values from the

cylinder diameter in the standard table (see “DIN 509 E, DIN 509 F—

undercut parameters” on page 527).

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