Thread machining
Indexable Thread Milling Cutting Parameter Recommendation
Materials
ATM60
fz(mm) Insert dimension 06 09 11/14
Cutting speed Vc(m/min)
Brinell hardness (HB)
Tensile strength (N/mm 2 )
ISO
Material classification
C ≤ 0.25%
Annealed
125
428
180
0.3
0.35
0.4
0.25 < C ≤ 0.55%
Annealed
190
639
180
0.3
0.35
0.4
0.25 < C ≤ 0.55%
Heat-treated
210
708
180
0.3
0.35
0.4
Unalloyed steel
Annealed
190
639
180
0.3
0.35
0.4
C > 0.55%
Heat-treated
300
1013
180
0.25
0.3
0.35
C > 0.55%
Free cutting steel (short-chipping)
Annealed
220
745
180
0.3
0.35
0.4
Annealed
175
591
180
0.3
0.35
0.4
P
Heat-treated
300
1013
180
0.3
0.35
0.4
Low-alloyed steel
Heat-treated
380
1282
130
0.2
0.3
0.35
Heat-treated
430
1477
80
0.15
0.2
0.3
Annealed
200
675
180
0.25 0.35
0.4
High-alloyed steel and high-alloyed tool steel
Hardened and tempered
300
1013
180
0.25 0.35
0.4
Hardened and tempered
400
1361
130
0.25
0.3
0.35
Ferritic/martensitic, annealed
200
675
180
0.25
0.3
0.35
Stainless steel
Martensitic, heat-treated
330
1114
130
0.25
0.3
0.35
Austenitic, quench hardened
200
675
180
0.2
0.3
0.35
M
Stainless steel
Austenitic, precipitation hardened (PH)
300
1013
130
0.2
0.3
0.35
Austenitic/ferritic, duplex
230
778
80
0.2
0.3
0.35
Ferritic
200
400
180
0.3
0.35
0.4
Malleable cast iron
Pearlitic
260
700
180
0.3
0.35
0.4
Low tensile strength
180
200
250
0.3
0.35
0.4
Grey cast iron
K
High tensile strength/austenitic
245
350
180
0.3
0.35
0.4
Ferritic
155
400
180
0.3
0.35
0.4
Cast iron with spheroidal graphite
Pearlitic
265
700
180
0.3
0.35
0.4
GGV(CGI)
230
400
180
0.3
0.35
0.4
non-aging
30
-
Wrought aluminium alloys
aged
100
340
≤ 12% Si, non-aging
75
260
Cast aluminium alloys
≤ 12% Si, aged
90
310
200
0.3
0.35
0.4
> 12% Si, non-aging
130
450
240
0.3
0.35
0.4
N
Magnesium alloys
70
250
Unalloyed, electrolytic copper
100
340
Copper and copper alloys (bronze/brass)
Brass, bronze, red brass
90
310
Cu alloys, short-chip
110
380
High tensile, Ampco alloy
300
1010
Annealed
200
680
35
0.2
0.2
0.2
Fe-based
Hardened
280
940
20
0.1
0.1
0.1
Heat-resistant alloys
Annealed
250
840
35
0.2
0.2
0.2
Ni or Co based
Hardened
350
1180
20
0.1
0.1
0.1
Cast
320
1080
30
0.2
0.2
0.2
S
Pure titanium
200
680
35
0.2
0.2
0.2
Titanium alloys
α and β alloys, hardened
375
1260
35
0.2
0.2
0.2
β alloys
410
1400
25
0.2
0.2
0.2
Tungsten alloys
300
1010
35
0.2
0.2
0.2
Molybdenum alloys
300
1010
35
0.2
0.2
0.2
Hardened and tempered
50HRC
40
0.15
0.2
0.2
Hardened steel
Hardened and tempered
55HRC
H
Hardened and tempered
60HRC
Chilled cast iron
Hardened and tempered
50HRC
40
0.15
0.2
0.2
The recommended cutting parameters are theoretical values, special applications require adjustment of the recommended values.
431
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