Milling Contour Spigot (Cycle63) - Siemens SINUMERIK 840D sl Operating Manual

Programming technological functions (cycles)
8.3 Contour milling
8.3.12

Milling contour spigot (CYCLE63)

Function
You can mill any spigot using the "Mill spigot" cycle.
Before you mill the spigot, you must first enter a blank contour and then one or more spigot
contours. The blank contour defines the area, outside of which there is no material, i.e. the
tool moves with rapid traverse there. Material is then removed between the blank contour
and spigot contour.
Machining type
You can select the machining mode (roughing, base finishing, edge finishing, chamfer) for
milling. If you want to rough and then finish, you have to call the machining cycle twice
(Block 1 = roughing, Block 2 = finishing). The programmed parameters are retained when
the cycle is called for the second time.
Approach/retraction
1. The tool approaches the starting point in rapid traverse at the height of the retraction
2. The tool first infeeds to the machining depth and then approaches the spigot contour from
3. The spigot is machined in parallel with the contours from the outside in. The direction is
4. When the first plane of the spigot has been machined, the tool retracts from the contour
5. The spigot is again approached in a quadrant and machine in parallel with the contours
6. Steps 4 and 5 are repeated until the programmed spigot depth is reached.
7. The tool moves back to the safety clearance in rapid traverse.
Procedure
408
plane and goes to the safety clearance. The cycle calculates the starting point.
the side in a quadrant at machining feedrate.
determined by the machining direction (climbing or conventional).
in a quadrant and then infeeds to the next machining depth.
from outside in.
1. The part program or ShopMill program to be processed has been
created and you are in the editor.
2. Press the "Contour milling" and "Spigot" softkeys.
The "Mill spigot" input window opens.
3. Select the "Roughing" machining type.
Operating Manual, 03/2013, 6FC5398-7CP40-3BA1
Milling