December 2001 Display and Operation 6 – 291
6.13.15 Cycles
HEIDENHAIN contouring controls feature standard fixed cycles (e.g. peck
drilling, tapping, pocket milling), which can be called in the NC program. In
addition to the standard HEIDENHAIN cycles, you can program so-called
Original Equipment Manufacturer (OEM) cycles ((See "Application of OEM
Cycles” on page 9 – 5)). You can influence the function of many HEIDENHAIN
standard cycles through machine parameters.
For the Tapping and Oriented spindle stop cycles:
(See "Spindle” on page 6 – 180).
For the Touch probe cycles: (See "Touch Probe” on page 6 – 346).
Pocket milling Cycles 4 and 5:
7
77
7 In MP7430, enter the overlap factor for roughing out a rectangular or circular
pocket.
Infeed = (MP7430) · cutter radius
MP7430 Overlap factor for pocket milling
Input: 0.001 to 1.414
Cycles for milling
pockets with
combined contours
Cycles 6, 14, 15, 16:
7
77
7 With MP7420, specify:
• Bit 0: The milling direction for channel milling
• Bit 1: The sequence for rough-out and channel milling
• Bit 2: The conditions under which programmed pockets should be merged
(see graphics below)
• Bit 3: Whether each process (channel milling or pocket clearing) is to be
completed for all pecking depths before performing the other process, or
whether both are to be performed alternately for each pecking depth
• Bit 4: Position after completion of the cycle
Infeed
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