Attributes For Superimposed Elements G39-Geo - HEIDENHAIN CNC PILOT 640 User Manual

DIN/ISO programming | Attributes for contour description

Attributes for superimposed elements G39-Geo

G39 influences the finishing feed rate of G890 with the form
elements:
Chamfers/rounding arcs (for connecting basic elements)
Undercuts
Recesses
Affected machining:
Sp. Feed Fact.
Roughness
Additive D compensation
Equidistant Ov.size
Parameter:
F: Feed per revolution
V: Kind of rough. – surface roughness (DIN 4768)
1: General surface roughness (profile depth) Rt1
2: Surface roughness Ra
3: Surface roughness Rz
RH: Roughness (µm, inch mode: µinch)
D: Corr. additiv (range: 901 <= D <= 916)
P: Allowance (radius)
H: Absolut=0,Add=1 – P applies as an absolute or additive value
(default: 0)
0: P replaces G57-/G58 oversizes
1: P is added to G57-/G58 oversizes
E: Special feed rate factor (default: 1)
Special feed rate = active feed rate * E
Use Kind of rough. V, Roughness RH, Feed per
rotation F and special feed rate E alternatively!
G39 is a non-modal function
Program G39 before the contour element for which it
is intended
G50 preceding a cycle (MACHINING section) cancels
oversizes programmed for that cycle with G39
Function G39 can be replaced by directly entering the
attributes in the contour elements dialog. The function is
necessary to execute imported programs correctly.
HEIDENHAIN | User's Manual smart.Turn and DIN Programming | 12/2017
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