Siemens sinumerik 840D sl Operating Manual

Also see for SINUMERIK 828D Turning: Diagnostic manual Function manual Equipment manual Programming manual Operating manual

Contents

Programming technology functions (cycles)8.4 MillingTurningOperating Manual, 07/2010, 6FC5398-8CP40-0BA0 3338.4 Milling8.4.1 Face milling (CYCLE61)FunctionYou can face mill any workpiece with the "Face milling" cycle.A rectangular surface is always machined. The rectangle results from corner points 1 and 2that are pre-assigned with the values of the blank part dimensions from the program header.Workpieces with and without limits can be face-milled.NoteIf face milling is opened using a softkey, then the corner points X and Y from the programheader are transferred. Further, Z0 and the abs/inc selection from X1, Y1 are alsotransferred.Approach/retraction1. For vertical machining, the starting point is always at the top or bottom. For horizontalmachining, it is at the left or right.The starting point is marked in the help display.2. Machining is performed from the outside to the inside.Machining typeThe cycle makes a distinction between roughing and finishing:● Roughing:Milling the surfaceTool turns above the workpiece edge● Finishing:Milling the surface onceTool turns at safety distance in the X/Y planeRetraction of milling cutterDepth infeed always takes place outside the workpiece.For a workpiece with edge breaking, select the rectangular spigot cycle.In face milling, the effective tool diameter for a tool of type "Milling cutter" is stored in amachine data item.