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T4-12 SQUARE SHOULDER
T4
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Copyright © Seco Tools AB
T4-12 Square Shoulder – Product Features
Features – Cutter body R217/220.94-12
• Diameter range Ø25 – 125 mm (1.25''-5.0'')
• Depth of cut capability 12 mm (0.5'')
• True 90° square shoulder
• Tangential mounted inserts
– Easy to handle
– Improved cutting edge
– Improved body strength
– More insert edges per diameter
• Two pitch variants
– Normal pitch for slotting and contouring
– Close pitch optimised for contouring
• Different mounting variants
– Cylindrical shanks
– Weldon shanks
– Seco Weldon
– Combimaster™ heads
– Seco-Capto™
– Arbor style
• Application area for roughing and semi-finishing
Features – LOEX12 insert range
• 4 cutting edges per insert
– Cost effective
• Depth of cut capability 12 mm (0.5'')
– Strong insert with high productivity capability
• Two geometries (-M12 / -MD13), both with wiper flat
– Versatility
– Good surface quality result
• Radii range
– M12 geometry radii (mm) = 0.8 / 1.2 / 1.6 / 2.0 /
2.4 / 3.1
– MD13 geometry radii (mm) = 0.8 / 1.2 / 1.6
• Positive rake angle
– Smooth cutting
• Different milling grades
– Both PVD- and CVD-coated variants
– Wide range of machining opportunities
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Copyright © Seco Tools AB
T4-12 Square Shoulder – Cutter Body Features
Coated body
DOC
ap=12 mm
90° Stronger core
Positive axial
rake angle with
double-sided
insert
Through coolant channels
Tangentially mounted inserts
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Positive rake angle
• Smooth cutting
• Low cutting forces
Optimised geometries
• M12 (1st choice when machining steel and easy stainless steels)
• MD13 (1st choice when machining cast iron)
T4-12 Square Shoulder – Features for a
Smooth Cutting Process
+10° Axial rake angle
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Copyright © Seco Tools AB
T4-12 Square Shoulder – Insert Features
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DOC 12 mm
7.5 mm
Thick insert
Wiper flat
Good surface
quality
Radii range
(0.8 – 3.1 mm)
Flexibility
Variable helix angle
Smooth cutting
4 cutting edges
(2 x 2)
Cost effective
Copyright © Seco Tools AB
T4-12 Square Shoulder – LOEX12 Insert
Features
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4 cutting edges per insert
• Rotating guide
• Decreased cost per edge (cutting edges marked with dots)
• Rotating guide gives optimised run-out accuracy
1 2 3 4
Copyright © Seco Tools AB
Extended tool life with
Ni-coated bodies
Increased strength with
enlarged core
Improved support on
cutting force (fc)
direction
Fc Fc
Tangential tightened inserts Conventional tightened inserts
S S
T4-12 Square Shoulder – Cutter Body Features
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Copyright © Seco Tools AB
90°
Excellent 90° accuracy is achieved along whole cutting edge
Note: Above measuring values are theoretical values
T4-12 Square Shoulder – 90° Setting Angle
Feature
ap= 4 mm ap= 9 mm ap= 12 mm
Ø 25 mm 90.42 90.06 89.86
Ø 32mm 90.45 90.13 89.93
Ø 40 mm 90.07 90.06 90.05
Ø 44 mm 90.06 90.06 90.05
Ø 50 mm 90.06 90.06 90.05
Ø 54 mm 90.04 90.06 90.06
Ø 63 mm 90.03 90.06 90.06
Ø 66 mm 90.03 90.06 90.06
Ø 80 mm 90.01 90.04 90.04
Ø 100 mm 90.01 90.06 90.06
Ø 125 mm 90.01 90.07 90.08
Dc
Setting angle
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Copyright © Seco Tools AB
T4-12 Square Shoulder – Positioning
• First choice when using 2-D
and depth of cut above 4 mm
• Recommended maximum
DOC 6 mm when using radial
depth of cut
• Possible to use full DOC
12 mm when radial depth of
cut is 25% or less
• Excellent 90° square shoulder
accuracy along whole edge
length
Cutt
ing d
epth
(ap)
Material difficulty
Helix angle Easy cutting / Sound
Versatility
Square
T4-08
Turbo 06
Turbo 10
Turbo 12
Turbo 18
Sq6-04
Sq6-08
Cutting economy
Square T4-12
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Copyright © Seco Tools AB
T4-12 Square Shoulder – Basic Guidelines
Positioning
T4-12 Square Shoulder is focused on machining steels and cast
irons, with acceptable performance when machining stainless
steels
Advantages of T4-12 range
• Cutter range starts from Ø32 mm with DOC capability 12 mm (max ap)
• Sq6-04 DOC capability max 4 mm
• Sq6-08 cutter range starts from Ø40 mm (max ap = 8 mm)
When slotting or contouring with radial depth of cut > 50%,
a DOC=6 mm is recommended
When contouring with radial depth of cut < 25 %, it is possible
to use full DOC (12 mm)
DOC = axial depth of cut
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Copyright © Seco Tools AB
T4-12 Square Shoulder – Weldon Shanks
Normal pitch – for slotting and contouring
ap Dc dmm l2 l3
R217.94 -3232.3-12-3A 12 32 32 110 30 3
Description
Dimensions (mm)
ap Dc dmm l2 l3
R217.94 -2525.3-12-2A 12 25 25 101 30 2
Description
Dimensions (mm)
Close pitch – optimised for contouring
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T4-12 Square Shoulder – Cylindrical Shanks
Normal pitch – for slotting and contouring
ap Dc dmm l2 l3
-3232.0-12-3A 12 32 32 195 30 3
-3240.0-12-4A 12 40 32 210 30 4
Description
Dimensions (mm)
R217.94
Close pitch – optimised for contouring
ap Dc dmm l2 l3
-2525.0-12-2A 12 25 25 170 30 2
-3240.0-12-5A 12 40 32 210 30 5
R217.94
Description
Dimensions (mm)
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Copyright © Seco Tools AB
T4-12 Square Shoulder – Seco Weldon
Shanks
Normal pitch – for slotting and contouring
Close pitch – optimised for contouring
ap Dc dmm lc l2 l3
-2532.3S-12-3A 12 32 25 56 110 40 3
-3240.3S-12-4A 12 40 32 60 120 46 4
Description
Dimensions (mm)
R217.94
ap Dc dmm lc l2 l3
R217.94 -3240.3S-12-5A 12 32 32 60 120 46 5
Description
Dimensions (mm)
Copyright © Seco Tools AB
T4-12 Square Shoulder – Combimaster Heads
Normal pitch – for slotting and contouring
Close pitch – optimised for contouring
ap Dc D5m M l1
-1632.RE-12-3A 12 32 30 M16 40 3
-2040.RE-12-3A 12 40 36.5 M20 40 3
Description
Dimensions (mm)
R217.94
ap Dc D5m M l1
R217.94 -2040.RE-12-5A 12 40 36.5 M20 40 5
Description
Dimensions (mm)
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Copyright © Seco Tools AB
T4-12 Square Shoulder – Seco-Capto Style
Normal pitch – for slotting and contouring
Close pitch – optimised for contouring
ap Dc D5m l1
C4-R217.94 -044-12-4A 12 44 40 60 4
C5-R217.94 -054-12-5A 12 54 50 60 5
C6-R217.94 -066-12-6A 12 66 63 60 6
C6-R217.94 -084-12-9A 12 84 63 60 9
Description
Dimensions (mm)
ap Dc D5m l1
C4-R217.94 -044-12-5A 12 44 40 60 5
C5-R217.94 -054-12-6A 12 54 50 60 6
Description
Dimensions (mm)
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Copyright © Seco Tools AB
T4-12 Square Shoulder – Arbor Style
Normal pitch – for slotting and contouring
Close pitch – optimised for contouring
ap Dc D5m dmm l1
R220.94 -0040-12-4A 12 40 35 16 40 4
-0050-12-5A 12 50 45 22 40 5
-0063-12-6A 12 63 56 27 40 6
-0080-12-7A 12 80 62 27 50 7
-0100-12-9A 12 100 77 32 50 9
-0125-12-12A 12 125 90 40 63 12
Description
Dimensions (mm)
ap Dc D5m dmm l1
R220.94 -0040-12-5A 12 40 35 16 40 5
-0050-12-6A 12 50 45 22 40 6
-0063-12-8A 12 63 56 27 40 8
-0080-12-10A 12 80 62 27 50 10
-0100-12-12A 12 100 77 32 50 12
-0125-12-15A 12 125 90 40 63 15
Description
Dimensions (mm)
dm m
D 5m
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Copyright © Seco Tools AB
T4-12 Square Shoulder – Field Test
Result: Metal removal rate (Q): +50%
Tool life (pcs): +50%
Objective
Material: SMG: P5
Machine:
Vc = 160 m/min Vc = 110 m/min
n = 1592 rpm n = 1100 rpm
fz = 0,16 mm/teeth fz = 0,12 mm/teeth
Vf = 760 mm/min Vf = 400 mm/min
ap = 3,4 mm ap = 3 mm
ae = 20 mm ae = 20 mm
Q = 51,68 cm3/min Q = 24 cm
3/min
Coolant Yes Coolant = Yes
Time 165 minutes Time = 233 minutes
Pcs 15 pcs Pcs = 10 pcs
1.4104
Mori Seiki NH4000 DCG, BT40-taper
Tool supplier
Tool life per edge
Comparing SqT4-12 vs competitors tangential mounted insert cutter
Insert
Cutting data
R217.94-3232.3-12-3A Tangential Ø32mm z=3
LOEX120708TR-M12,F40M 13mm insert size (4 edges), P40 grade
Cutter
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Copyright © Seco Tools AB
T4-12 Square Shoulder – Field Test
Face milling with 75% radial engagement Customer comments: • Vibration-free machining
• T4-12 smooth cutting
process
• Better surface finish
with T4-12
Objective
Material: SMG: K4
Machine:
Application: Contouring and slot milling of work piece bottom face
Vc = 282 m/min Vc = 235 m/min
n = 1795 rpm n = 1496 rpm
fz = 0,23 mm/teeth fz = 0,16 mm/teeth
Vf = 2477 mm/min Vf = 1196 mm/min
ap = 2,5 mm ap = 2,5 mm
ae = 37,5 mm ae = 37,5 mm
Q = 232 cm3/min Q = 112 cm
3/min
Coolant Yes Coolant = Yes
Time 164 minutes Time = 140 minutes
Pcs 90 pcs Pcs = 50 pcs
Tool life per edge
Comparing SqT4-08 vs Competitors conventional mounted insert cutter
Insert
Cutting data
R220.94-0050-12-6A Cutter Ø50 z=5
LOEX120708TR-MD13,MK2050 Double sided insert 12mm, K30 grade
Cutter
GGG40
Toyoda FH500J, BT50-taper
Tool supplier
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Copyright © Seco Tools AB
T4-12 Square Shoulder – Field Test
Random, both slotting and contouring
Result: 100% better tool life
with T4-12
Objective
Material: SMG: P5
Machine:
Vc = 250 m/min Vc = 250 m/min
n = 1590 rpm n = 1590 rpm
fz = 0,25 mm/teeth fz = 0,25 mm/teeth
Vf = 1988 mm/min Vf = 1988 mm/min
ap = 6 - 11 mm ap = 6 - 11 mm
ae = 3 - 50 mm ae = 3 - 50 mm
Q = n/a cm3/min Q = n/a cm
3/min
Coolant Dry Coolant = Dry
Time 60 minutes Time = 30 minutes
Pcs n/a pcs Pcs = n/a pcs
FE 410
Soraluce FP12000, DIN 50-taper
Tool supplier
Tool life per edge
Comparing SqT4-12 vs competitors tangential mounted insert cutter
Insert
Cutting data
R220.94-0050-12-5A Tangential Ø50mm z=5
LOEX120708TR-M12,MP2500 11mm insert size (4 edges), P30 grade
Cutter
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