Page 547 - ISCAR(MILLINGCATALOG 38_2021)

USER GUIDE

Cutting Recommendations for the HELIQUAD-12 Complete Line
• The table below defines initial feed rates
• For initial cutting speeds, refer to ISCAR’s recommendations for carbide grades
Calculating cutting feed rate: MILLING INSERTS

ƒz=ƒz0×Kef×Ks where
fz0 - Basic feed (Table 1),
Kef - Engagement factor ( Table 2),
Ks - Stability factor (Table 3)
Table 1 - Basic feed, ƒz0, mm/tooth
ƒz0 for Insrt SIze/Geometry
Tensile SDMT SDMT SDMT SDMT SDMR QDMT QDCT
Strength Hardness Material 1205… 1205PDR- 1205PDN- 1205PDR- 1205… 1205… 1205…
ISO Material Condition [N/mm ] HB No. (1) PDR…-MM HQ-M RM-M HQ-HS HQ-M PDTN-M PDN/-F
2
< 0.25 %C Annealed 420 125 1
Non-alloy
steel >= 0.25 %C Annealed 650 190 2
and cast < 0.55 %C Quenched and 850 250 3 0.2 0.15 - 0.15 0.12 0.2 0.12
steel, free tempered
cutting >= 0.55 %C Annealed 750 220 4
steel Quenched and
tempered 1000 300 5
P Low alloy steel Annealed 600 200 6
and cast steel Quenched and 930 275 7 0.2 0.15 - 0.15 0.10 0.2 0.10
(less than 5% of 1000 300 8
alloying elements) tempered 1200 350 9
Annealed
High alloyed steel, cast Quenched and 680 200 10
steel, and tool steel 1100 325 11 -
tempered 0.18 0.13 0.13 0.10 0.18 0.10
Stainless steel Ferritic/ 680 200 12
and cast steel martensitic
Martensitic 820 240 13
Stainless steel
M Austenitic 600 180 14 - - - - 0.10 - 0.10
and cast steel
Grey cast iron (GG) Ferritic/pearlitic 180 15
16
Pearlitic
260
Cast iron nodular Ferritic 160 17
K - 0.15 0.15 - - 0.2 -
(GGG) Pearlitic 250 18
Ferritic 130 19
Malleable cast iron
Pearlitic 230 20
Aluminum Not cureable 60 21
wrought alloys Cured 100 22
Not cureable 75 23
Aluminum <=12% Si Cured 90 24
cast High
alloys >12% Si temperature 130 25
N >1% Pb Free cutting 110 26 - - - - 0.15 - 0.15
Copper Brass 90 27
alloys Electrolytic 100 28
copper
Duroplastics,
Non metallic fiber plastics 29
Hard rubber 30
Annealed 200 31
High Fe based Cured 280 32
temp. Ni or Co Annealed 250 33 0.07 0.07
alloys based Cured 350 34
S Cast 320 35 - - - - -
Rm =
Pure (2) 36
Titanium alloys 400 0.09 0.09
Alpha+beta Rm =
alloys cured 1050 37
Hardened steel Hardened 55 HRC 38 0.07 - - - - 0.07 -
H Chilled cast iron Cast 400 40 0.07 - - - - 0.07 -
Cast iron Hardened 55 HRC 41 0.07 - - - - 0.07 -
(1) in accordance with VDI3323 standard
(2) Rm - ultimate tensile strength, MPa
Table 2 - Engagement Factor Kef Table 3 - Stability Factor Ks
ae/D 0.5…1 0.25 up to 0.5 less than 0.25 Stability High Moderate Poor
Ke 1 1.1 1.3 Ks 1 0.9 0.7
ae - Width of cut
D - cutting diameter
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