Programming technological functions (cycles)8.3 Contour millingMillingOperating Manual, 03/2010, 6FC5398-7CP20-1BA0 3518.3.12 Milling contour spigot (CYCLE63)FunctionYou 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 spigotcontours. The blank contour defines the area, outside of which there is no material, i.e. thetool moves with rapid traverse there. Material is then removed between the blank contourand spigot contour.Machining typeYou can select the machining mode (roughing, base finishing, edge finishing, chamfer) formilling. 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 whenthe cycle is called for the second time.Approach/retraction1. The tool approaches the starting point in rapid traverse at the height of the retractionplane and goes to the safety clearance. The cycle calculates the starting point.2. The tool first infeeds to the machining depth and then approaches the spigot contour fromthe side in a quadrant at machining feedrate.3. The spigot is machined in parallel with the contours from the outside in. The direction isdetermined by the machining direction (climbing or conventional).4. When the first plane of the spigot has been machined, the tool retracts from the contourin a quadrant and then infeeds to the next machining depth.5. The spigot is again approached in a quadrant and machine in parallel with the contoursfrom outside in.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.Procedure1. The part program or ShopMill program to be processed has beencreated 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.
