Siemens SINUMERIK 840D sl Operating Manual page 232

Programming a cycle
4.7 Milling
Approach/retraction
1. The tool approaches the starting point at rapid traverse at the height of the retraction
2. The tool approaches the spigot contour sideways in a semicircle at machining feedrate.
3. When the circular spigot has been traversed once, the tool retracts from the contour in a
4. The circular spigot is approached again in a semicircle and traversed once. This process
5. The tool moves back to the safety clearance at rapid traverse.
Procedure
232
plane and is fed in to the safety clearance. The starting point is always on the positive X
axis.
The tool first executes infeed at machining depth and then moves in the plane. The
circular spigot is machined depending on the programmed machining direction (up-
cut/down-cut) in a clockwise or counterclockwise direction.
semicircle and then infeed to the next machining depth is performed.
is repeated until the programmed spigot depth is reached.
1. Select the part program to be edited in the "Program manager"
operating area.
2. Press the "Open" softkey or the "INPUT" key to edit the part program
in the editor.
3. Press the "Milling" softkey.
4. Press the "Multi-edge spigot" and "Circular spigot" softkeys.
The "Circular Spigot" input window opens.
Operating Manual, 01/2008, 6FC5398-7AP10-0BA0
HMI sl Turning