Siemens SINUMERIK Series Operating Manual

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

10.5 Contour turning - Milling/turning machine10.5.1 General informationFunctionYou can machine simple or complex contours with the "Contour turning" cycle. A contourcomprises separate contour elements, whereby at least two and up to 250 elements result ina defined contour.You can program chamfers, radii, undercuts or tangential transitions between the contourelements.The integrated contour calculator calculates the intersection points of the individual contourelements taking into account the geometrical relationships, which allows you to enterincompletely dimensioned elements.When you machine the contour, you can make allowance for a blank contour, which must beentered before the finished-part contour. Then select one of the the following machiningtechnologies:● Stock removal● Grooving● Plunge-turningYou can rough, remove residual material and finish for each of the three technologies above.NoteStarting point or end point of the machining outside the retraction planesFor programs with contour machining from earlier software releases, for an NC start, it ispossible that one of the alarms 61281 "Starting point of machining outside retraction planes"or 61282 "End point of machining outside retraction planes" is output.In this case, adapt the retraction planes in the program header.ProgrammingFor example, the programming procedure for stock removal is as follows:NoteWhen programming in the G code, it must be ensured that the contours are located after theend of program identifier!Programming technological functions (cycles)10.5 Contour turning - Milling/turning machineMilling574 Operating Manual, 08/2018, 6FC5398-7CP41-0BA0