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Hi-Performance EndMillsHi-Performance EndMills
Aerospace Automotive DefenceGeneral Engineering Medical
- Manufacture from premium sub micron grain carbide.
- Effective for profiling & side milling application.
- Increased feed rate with 5 flute endmill.
- Increased stability during cutting.
Features
Viper EndMills helps in avoiding resonance which is detrimental to the surface
finish and tool life. The tool geometry helps in achieving higher
Material Removal Rate (MRR)
Va r i a b l e H e l i x E n d M i l l s
3200
0.35
1100
Blue Grey
High Oxidation Resistance
Hot Hardness
High Wear Resistance
Micro Hardness
(HV0.05)
Coefficient Of Friction
Against Steel
Maximum Service 0 Temperature c
Coating Colour
Features
Coating Details
CG Coating for extended tool life
Applications
Special flute form
for easy chip flow
- Reduced chatter & vibration
during machining.
- Can be used at higher parameters.
- Increased productivity.
- Better surface finish on the machined surface.
Benefits
Helix angle changes
along the flute032 -380
Cut Dia toleranceh10
Shank dia tolerance h6
Alloy Steel
Stainless Steel
Nickel / Inconel Alloy
Carbon Steel
Hardened Steel
Work Material
Excellent Good
call : 90084 90480 | eMail: [email protected]
Va r i a b l e H e l i x E n d M i l l sVa r i a b l e H e l i x E n d M i l l s
4 Flute - Regular Length4 Flute - Regular Length
Description CG Coated - EDP #
4 FluteCornerRadius
CutDia
ShankDia
Length Of Cut
OverallLength
19880
19882
19884
19886
19888
19890
19901
19903
0.4
0.4
0.4
0.4
0.6
0.7
0.7
0.7
4
6
8
10
12
16
20
25
4
6
8
10
12
16
20
25
14
20
20
25
25
32
38
38
51
63
63
70
76
89
100
100
5 Flute - Regular Length5 Flute - Regular Length
Description CG Coated - EDP #
5 FluteCornerRadius
CutDia
ShankDia
Length Of Cut
OverallLength
19891
19892
19894
19896
19898
19899
19904
19906
0.4
0.4
0.4
0.4
0.6
0.7
0.7
0.7
4
6
8
10
12
16
20
25
4
6
8
10
12
16
20
25
14
20
20
25
25
32
38
38
51
63
63
70
76
89
100
100
4 & 5 FluteUpto 35
HRC
Shank Design
HA
R032 -038
Shank Dia
Overall Length
Length Of Cut
Cut Dia
3200
0.35
1100
Blue Grey
High Oxidation Resistance
Hot Hardness
High Wear Resistance
Micro Hardness(HV0.05)
Coefficient Of Friction
Against Steel
Maximum Service 0 Temperature c
Coating Colour
Features
Coating Details
More web thickness for
added strength
0Helix 40
CG Coating for
extended tool life
Better chip evacuation
due to special flute
Stuby flute for
tool rigidity
KraitHigh Feed EndMills
- Manufactured from premium
sub micron grain carbide.
- 4 Flute Centre Cutting Mill Utilizes the optimal
Helix angle, more Web thickness &
Spherical Flute geometry.
Features
Excellent Good
Alloy Steel
Stainless Steel
CastIron
Work Material
Cut Dia toleranceh10
Shank dia tolerance h6
- Can be used at high feed rate due to rigid geometry.
- Suitable for roughing & finishing of wide range
of materials.
- Increased productivity.
Benefits
Applications
These are high feed endmills which help reduce production time & improve
productivity. These endmills are suitable for broad range of work materials.
Nickel / Inconel Alloy
Carbon Steel
call : 90084 90480 | eMail: [email protected]
KraitHigh Feed EndMills
4 Flute Shank Design
HA
040Square End
<40HRC
4 Flute - Regular Length4 Flute - Regular Length
Description CG Coated - EDP #
4 Flute
16190
16192
16194
16196
16198
16200
16202
6
8
10
12
16
20
25
6
8
10
12
16
20
25
19
20
22
25
32
38
38
CutDia
ShankDia
Length Of Cut
OverallLength
63
63
75
75
89
100
100
Overall Length
Length Of Cut
Cut Dia Shank Dia
Special gemoetry with corner radius provides additional strength & polished flute
allows easy chip flow. 2 Flute aluma endmills are used for roughing and
3 flute aluma for finishing applications.
AlumaEndMills
Advance tool geometry
for maximum material removal
Highly polished flute for
easy chip flow
Cut Dia toleranceh10
Shank dia tolerance h6
- Special ultra fine grade for
machining Aluminium.
- High feed roughing with
excellent chip evacuation.
- Excellent for slotting and profiling
at high speeds.
Features
Excellent Good
AluminiumAlloy
CastIron
Work Material
- Suitable for roughing & finishing
applications.
- Can be used at high parameters.
- 2 flute for roughing application.
- 3 Flute for finishing application.
- Suitable for slotting & profile milling.
Benefits
Applications
call : 90084 90480 | eMail: [email protected]
AlumaEndMills
2 Flute035
R Shank Design
HA
Shank Design
HA
040Square End3 Flute
Shank Dia
Length Of Cut
Overall Length
Cut Dia
2 & 3 Flute - Regular Length2 & 3 Flute - Regular Length
Description 02 Flute - 35 Helix 03 Flute - 40 Helix
EDP #
27800
27802
27804
27806
27808
27810
27812
27814
27816
27818
27820
CutDia
4
5
6
8
10
12
14
16
18
20
25
ShankDia
4
5
6
8
10
12
14
16
18
20
25
Length Of Cut
14
20
20
20
25
25
32
32
38
38
38
OverallLength
51
51
63
63
70
76
89
89
100
100
100
EDP #
27830
27832
27834
27836
27838
27840
27842
27844
27846
27848
27850
CornerRadius
0.3
0.3
0.3
0.3
0.4
0.4
0.5
0.5
0.7
0.7
0.7
Note: 2 Flute also available without corner radius
Die & MouldEndMills
Suitable for machining complex contours in mould upto 65HRC. Flat and radius
endmills are used for roughing and ball nose endmills are used
for finishing applications.
Coating DetailsMicro Hardness
(HV0.05)
Coefficient Of Friction
Against Steel
Maximum Service 0 Temperature c
Coating Colour
Features
3300
0.35-0.4
>1100
Blue Grey
Improved Tool Edge Stability
Oxidation Resistance
High Thermal Resistance
Aldura (AlCrN)
3200
0.35
1100
Blue Grey
High Oxidation
Resistance
Hot Hardness
High Wear
Resistance
CGAlcrona(AlCrN)
3300
0.302-0.035
900
Violet Grey
Increased Cutting
Stability
Protection
Against Abrasive
Wear & Erosion
TiAlN
- Centre cutting geometry
- Manufactured from premium
sub micron grain carbide.
Features
- Suitable for Die & Mold application upto 65 HRC.
- Excellent surface finish & accuracy.
- Also available in 4 flute Ball nose,
4 Flute Corner radius & 4 flute flat endmill.
Benefits
Work Material
Excellent Good
Alloy Steel
Stainless Steel
Hardened Steel
Carbon Steel
Nickel / Inconel Alloy
Titanium
+/- 8 microns tolerance
on ball radius
Special geometry for
Die & Mold application
Shorter flute length for
max rigidity
Cut Dia toleranceh8
Shank dia tolerance h6
call : 90084 90480 | eMail: [email protected]
Die & MouldEndMills
Cut Dia
Overall Length
Shank Dia
Length Of Cut
2 Flute - Regular Length2 Flute - Regular Length
4 Flute - Long Length4 Flute - Long Length
Description
Description
Coated - EDP #
Coated - EDP #
TiAlN
57000
57024
57090
57120
57150
57174
57234
57276
CG
57002
57026
57092
57122
57152
57176
57236
57278
Aldura
57004
57028
57094
57124
57154
57178
57238
57280
TiAlN
57436
57496
57562
57580
57586
57682
CG
57438
57498
57564
57582
57588
57684
Aldura
57440
57500
57566
57584
57590
57686
NeckLength
3
8
---
---
---
---
---
—
CutDia
1
3
6
8
10
12
18
25
ShankDia
4
6
6
8
10
12
18
25
Length Of Cut
1.5
5
9
12
14
15
24
24
OverallLength
45
50
50
63
75
75
100
100
9
----
----
----
----
----
3
6
10
12
12
25
6
6
10
12
12
25
6
9
18
18
22
32
NeckLength
CutDia
ShankDia
Length Of Cut
OverallLength
100
75
150
100
150
125
Ball End2 Flute030
Shank Design
HA
45-65HRC
For all other size & 4 Flute refer Cobra Carbide Catalog page # E10-E13
For all other size & 2 Flute refer Cobra Carbide Catalog page # E10-E13
call : 90084 90480 | eMail: [email protected]
Die & MouldEndMills
4 Flute - Corner Radius 4 Flute - Corner Radius
Description Coated - EDP #
TiAlN
17102
17110
17122
17130
17138
17142
17146
17151
17150
CG
17302
17310
17322
17330
17338
17342
17346
17351
17350
Aldura
17502
17510
17522
17530
17538
17542
17546
17551
17550
CutDia
2
3
4
6
8
9
10
10
12
ShankDia
4
4
4
6
8
10
10
10
12
Length Of Cut
4
12
15
20
25
25
30
30
30
OverallLength
50
50
50
60
70
70
90
90
90
CornerRadius
0.4
0.5
1.0
0.5
0.5
1.0
0.5
2.0
0.5
Shank Design
HA
4 Flute030 upto 65
HRC
R
4 Flute - Square4 Flute - Square
Description Coated - EDP #
CG
57700
57708
57720
57724
57728
57732
57740
57742
57746
Aldura
57701
57709
57721
57725
57729
57733
57741
57743
57747
CutDia
1
3
6
8
10
12
18
20
25
ShankDia
4
6
6
8
10
12
18
20
25
Length Of Cut
1.5
5
9
12
14
15
24
24
24
OverallLength
45
50
50
63
75
75
100
100
100
For all other size refer Cobra Carbide Catalog page # E.14
Square End4 Flute030 45-65
HRC
Shank Design
HA
Note: TiAlN Coating for General Purpose upto 35 HRC
CG & Aldura Coating for Die & Mould applications upto 65 HRC
For all other size refer Cobra Carbide Catalog page # E.15
call : 90084 90480 | eMail: [email protected]
Speeds & FeedsHigh Performance EndMills
Cutting Speed (Vc - m/min)
Die & MouldMaterialType
Structural Steel
Free Cutting Steel
Unalloyed Heat Treatable Steel
Unalloyed Case Hardened Steel
Alloyed Case Hardened Steel
Nitriding Steel
Stainless Steel,
Sulphured Austenitic Steel,
Low Carbon Steel
Medium Carbon Steel
Alloyed Heat Treatable Steel
Tool Steel
High Speed Steel
Cast Iron
Spheroidal Graphite &
Malleable Ci
Chilled Ci
Aluminium & Ti Alloys
Al Wrought Alloys
Al Cast Alloys < 10%si
Al Cast Alloys > 10%si
Special Alloys
Ti & Ti Alloys
Copper Low Alloyed
Brass
Bronze
Duro Plastics
Thermoplastics
Mg Alloys
MaterialGroup
Steel
Acid Resistant /
stainless Steel
High Tensile Steel
Cast Materials
Aluminium &
Aluminium Alloys
Special Alloys
Non ferrous Metals
Plastics
Magnesium Alloys
Hardened Steel
(45-65HRC)
Viper
100-136
80-136
80-130
120-150
75-120
100-136
75-100
90-100
60-80
80-120
80-120
60-75
130-175
100-150
70-85
50-75
Aluma
300-375
350-440
100-180
100-180
80-120
65-95
65-95
75-110
75-110
175-225
Krait
85-110
60-100
60-100
100-130
65-100
75-115
60-100
80-100
80-90
60-100
60-100
50-65
110-150
60-120
60-70
50-60
60-100
Ball Nose
50-70
40-60
50-60
60-80
50-60
60-70
70-120
Square
80-100
70-90
55-65
70-90
30-40
40-60
60-90
Speeds & FeedsHigh Performance EndMills
General Purpose & High Performance EndMills
2
0.014
0.01
0.018
0.014
0.036
0.018
0.036
0.006
0.036
3
0.017
0.013
0.022
0.017
0.044
0.022
0.044
0.01
0.044
5
0.025
0.018
0.035
0.025
0.07
0.035
0.07
0.02
0.07
6
0.03
0.022
0.045
0.03
0.09
0.045
0.09
0.025
0.09
8
0.045
0.03
0.06
0.045
0.12
0.06
0.12
0.032
0.12
10
0.055
0.038
0.075
0.055
0.15
0.075
0.15
0.039
0.15
12
0.07
0.052
0.095
0.07
0.19
0.095
0.19
0.048
0.19
20
0.09
0.06
0.13
0.09
0.26
0.13
0.26
0.058
0.26
25
0.13
0.1
0.15
0.13
0.3
0.15
0.3
0.073
0.3
Material
Steel
High Tensile Steels
Acid Resistant
Cast Material
Aluminium Alloys
Titanium Alloys
Non Ferrous
Plastic
Mg Alloys
Feed (mm/tooth)Diameter
Speeds and Feeds- Proper speeds and feeds will help eliminate chatter and excessive heating of the tool,
- Refer to the chart above for suggested speeds and feeds for various materials
- Speed ranges are dependent on the machinablility of the material
- For slotting applications the speed of the cutter should be reduced 20-30%
- Long flute length tools reduce the feed per tooth 50% and speed 20%
- Roughing end mills should increase feed per tooth 50%-100%
- Depths of cut are not to exceed 1-1/2 times the cutter diameter.
- The more flutes on the endmill will usually improve the surface finish of the part.
If work piece finish is important, select four or more flutes.
- Fewer flutes permit greater chip carrying capacity
- Always select the largest diameter end mill for the cut being made.
This helps to keep deflection to a minimum and decreases the chip load.
- Keep tool overhang to a minimum, always insert the shank as far as possible into the holder.
Collet holders are preferred set up.
Endmill Selection
Cobra Carbide Pvt. Ltd.
54, Bommasandra Jigani Link Road,
Industrial Area Phase IV, Bangalore - 560 105.
Phone: +91-8110-4150 03-06 Fax: 4150 07 Mobile: 90084 90480
eMail: [email protected] website: www.cobra-india.com
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