HEIDENHAIN MANUALplus 4110 Pilot - Manual (Page 68)

68
Recessing cycle
Simple recessing cycle G86
G86 machines simple radial and axial recesses with chamfers.
MANUALplus determines the position of the recess from the “tool
orientation“.
A programmed oversize is taken into account during rough-machining. In
the second step, the recess is finish-machined. The “Dwell time E“ is
only taken into account during the finish-machining.
G86 machines chamfers at the sides of the recess. If you do not wish
MANUALplus to cut the chamfers, you must position the tool at a
sufficient distance from the workpiece. Calculate the starting position as
follows:
XS = XK + 2 * (1.3 – b)
XS: Start position (diameter value)
XK: Contour diameter
b: Chamfer width
Tool position at end of cycle:
• Radial recess: X – start position; Z – last recess position
• Axial recess: X – last recess position; Z – start position
Parameters
X, Z:
Target point (X as diameter)
I, K: Oversize/width of recess
• Radial recess: I = oversize; K = recess width
• Axial recess: I = recess width; K = oversize
If you do not enter a recess width, a recessing stroke results
(recess width = tool width).
E: Dwell time (for chip breaking) – default: length of time for one
revolution
• Cutter radius compensation: is not carried out
• Oversizes: are not considered