LAMINA - katalog | KL-TECH s.r.o. | www.klte.cz Lamina | Page 323

TECHNICAL INFORMATION
KL-TECH s. r. o | www. klte. cz
HIGH FEED MILLING
EFFECTIVE DIAMETER FOR RPM CALCULATION The effective cutting diameter( D eff
) must be calculated to obtain the correct revolution per minute( RPM) and consequently the table feed.
The effective cutting diameter is calculated using the following values and formula.
n = V c x 1000
D eff x π
Symbol Designation Unit
D Cutter Diameter mm
D eff
=
D- l
DOC Depth of cut mm
Diameter compensation( see chart below) mm
SDKX 0904-HF SDKW 0904-HF
SDKX 1205-HF SDKW 1205-HF
APKT 0602-HF APKW 0602-HF
D1
D
DOC
DOC( mm) l( mm)
DOC( mm) l
( mm)
DOC( mm) l
( mm)
1.5 0 2.0 0 0.5 0 1.4 0.22 1.8 0.66 0.4 0.32 1.3 0.58 1.6 1.58 0.3 0.72 1.2 1.04 1.4 2.58 0.2 1.28 1.1 1.52 1.2 3.66 0.1 2.22 1.0 2.02 1.0 4.84 0.9 2.54 0.8 6.16 0.8 3.10 0.6 7.66 0.7 3.70 0.4 9.44 0.6 4.34 0.2 11.76 0.5 5.06 0.4 5.82 0.3 6.72 0.2 7.74 0.1 9.06
EXAMPLE FOR D eff CALCUATION
Cutter:
LT 903 S-W-D040 / 4( D = 40 / Z = 4)
Insert:
SDKX 1205-HF
Material: Lamina Group 3 – 280 HB
VALUES
Vc = 120 m / min
INCORRECT CALCULCATION
CORRECT CALCULATION
D = 40 mm
DOC = 1.0 mm l = 4.84 mm
D eff
= D- l
RPM for D = 40
n = 954 rev / min
RPM for D eff = 35.16
n = 1085 rev / min
D eff
= 40 – 4.84
D eff
= 35.16
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