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DoOcto

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product_Milling_DoOcto

Ideal for steel and cast iron face milling

A single cutter body with 4 insert options broadens its application range

Applications & Features

Applications

Face millingCoolant hole

Features

1. Inserts are available in single-sided or double-sided geometry

  • ONMU / ONHU: Double-sided, octagonal inserts (economy)
  • SNMU / SNHU: Double-sided, square inserts (large cutting depths)
  • OWMT: Single-sided, octagonal insert (with low cutting load, high feed rates)

2. Enhanced cutter body lineup

• Including cutter diameters of >ø315 mm or extra close pitched design for effective cast iron milling.

 



For general purpose
Optimized orientation of coolant outlet which is located in a large chip gullet facilitates smooth chip evacuation. Large clamping screw enhances insert security.
Cutter diameters: ø80 mm – ø315 mm



For efficient cast iron milling
Offers twice as much insert density as a screw clamping style cutter with easy indexability.
Cutter diameters: ø80 mm – ø160 mm

Inserts & Grades

Inserts

ONHU07-W

  • Wiper insert with 8 cutting edges for ONMU/ONHU inserts

ON*U07-MJ / -ML

  • Economical Double sided octagonal insert, 16 corners available

OWMT08-HJ

  • Octagonal Milling Inserts with Positive Rake and HJ chipbreaker, 8 corners available

OWMT08-ML

  • Octagonal Milling Inserts with Positive Rake and ML chipbreaker, 8 corners available

SNHU17-W

  • Double sided wiper insert with 2 cutting edges in using with SNMU/SNHU insert

SN*U17-MJ / -ML

  • Double sided square inserts with large depth of cut
Main Grades

AH3135

  • High fracture resistance
  • Suitable for machining steel and stainless steel under general cutting conditions

T3225

  • High chipping and fracture resistance
  • Suitable for milling steel and stainless steel

AH120

  • Good balance between wear and fracture resistance
  • Suitable for machining steel, stainless steel, and cast iron under general cutting conditions

Cutter bodies

Bore Type

TAN07 (ø63 – ø315mm)

45deg screw clamp type face mills with double sided octagonal or square inserts

Bore Type

TAN07-W (ø63 – ø200mm)

45deg wedge clamp type face mills with double sided octagonal or square inserts

Practical examples

Example #1

Automotive Industry

Part: Cylinder block
Material: FC250
Cutter: TAN07R160M50.8-15 (ø160 mm, z = 15)
Insert: ONHU0705ANTN-ML
Grade: AH120
Cutting conditions: Vc = 180 (m/min)
fz = 0.18 → 0.2 (mm/t)
Vf = 780 → 1080 (mm/min)
ap = 3 (mm)
ae = 100 (mm)
Application: Face milling
Coolant: Dry
Machine: Vertical M/C, BT50
Example #2

Automotive Industry

Part: Crank shaft
Material: SCM435 / 34CrMo4
Cutter: TAN07R100M31.7-07 (ø100 mm, z = 7)
Insert: ONMU0705ANPN-ML
Grade: AH3135
Cutting conditions: Vc = 80 (m/min)
fz = 0.18 (mm/t)
Vf = 320 (mm/min)
ap = 3 (mm)
ae = 75 (mm)
Application: Face milling
Coolant: Wet
Machine: Specialized machine
Example #3

General Engineering

Part: Elbow
Material: SCS10 / 25Cr5NiMoN
Cutter: TAN07R200M47.6-12 (ø200 mm, z = 12)
Insert: OWMT0807AAER-ML
Grade: AH3135
Cutting conditions: Vc = 70 (m/min)
fz = 0.2 (mm/t)
Vf = 267 (mm/min)
ap = 1 (mm)
ae = 180 (mm)
Application: Face milling
Coolant: Wet
Machine: Horizontal M/C, BT50

Standard cutting conditions

Negative type

ISO Workpiece material Hardness Priority Recommendation Cutting speed
Vc (m/min)		 Feed per tooth
fz (mm/t)
Grade Chipbreaker
Low carbon steel
S15C, SS400, etc.
C15E4, E275A, etc.		 – 200HB First choice AH3225 MJ 100 – 250 0.2 – 0.5
– 200HB Fracture resistance AH3135 MJ 100 – 250 0.2 – 0.5
– 200HB Wear resistance T3225 MJ 200 – 350 0.2 – 0.4
– 200HB Low cutting force AH3225 ML 100 – 250 0.2 – 0.4
High carbon steel
S45C, S55C, etc.
C45, C55, etc.		 200 – 300 HB First choice AH3225 MJ 100 – 230 0.2 – 0.4
200 – 300 HB Fracture resistance AH3135 MJ 100 – 230 0.2 – 0.4
200 – 300 HB Wear resistance T3225 MJ 180 – 300 0.2 – 0.4
200 – 300 HB Low cutting force AH3225 ML 100 – 230 0.2 – 0.4
Alloy steel
SCM440, SCr415, etc.
42CrMo4, 17Cr3, etc.		 150 – 330 HB First choice AH3225 MJ 100 – 200 0.2 – 0.4
150 – 330 HB Fracture resistance AH3135 MJ 100 – 200 0.2 – 0.4
150 – 330 HB Wear resistance T3225 MJ 150 – 250 0.2 – 0.4
150 – 330 HB Low cutting force AH3225 ML 100 – 200 0.2 – 0.4
Stainless steel
SUS304, etc.
X5CrNi18-9, etc.		 – 200HB First choice AH3135 MJ 100 – 200 0.1 – 0.3
– 200HB Wear resistance T3225 MJ 100 – 250 0.1 – 0.3
Grey cast iron
FC350, FC450 etc.
GG35, GG45, etc.		 150 – 250HB First choice AH8015 MJ 100 – 250 0.1 – 0.5
150 – 250HB Wear resistance T1215 MJ 150 – 300 0.1 – 0.5
150 – 250HB Low cutting force AH8015 ML 100 – 250 0.1 – 0.5
Ductile cast iron
FCD600, etc.
600-3, etc.		 150 – 300HB First choice AH8015 MJ 80 – 200 0.1 – 0.5
150 – 300HB Wear resistance T1215 MJ 100 – 300 0.1 – 0.5
150 – 300HB Low cutting force AH8015 ML 80 – 200 0.1 – 0.5
Titanium alloy
Ti-6Al-4V, etc.		 – HRC 40 First choice AH3135 ML 30 – 60 0.1 – 0.3
Heat resistant alloy
Inconel718, etc.		 – HRC 40 First choice AH8015 ML 10 – 40 0.05 – 0.15
Hardened steel 40 – 50HRC First choice AH8015 MJ 80 – 130 0.1 – 0.2
40 – 50HRC Fracture resistance AH3225 MJ 80 – 130 0.1 – 0.2
50 – 60HRC First choice AH8015 MJ 50 – 70 0.05 – 0.1

Positive type

ISO Workpiece material Hardness Priority Grade Cutting speed
Vc (m/min)		 Feed per tooth: fz (mm/t)
ML HJ*
Low carbon steel
S15C, SS400, etc.
C15E, etc.		 – 200HB First choice AH3135 100 – 300 0.1 – 0.4 0.5 – 1.5
High carbon steel
S45C, S55C, etc.
C45, C55, etc.		 200 – 300 HB First choice AH3135 100 – 230 0.1 – 0.3 0.5 – 1.5
Alloy steel
SCM440, SCr415, etc.
42CrMo4, 17Cr3, etc.		 150 – 330 HB First choice AH3135 100 – 200 0.1 – 0.3 0.5 – 1.5
Stainless steel
SUS304, etc.
X5CrNi18-9, etc.		 – 200HB First choice AH3135 100 – 150 0.1 – 0.3 0.3 – 0.7
– 200HB Fracture resistance AH130 100 – 150 0.1 – 0.3 –
Grey cast iron
FC350, FC450 etc.
GG35, GG45, etc.		 150 – 250HB First choice AH3135 100 – 250 0.1 – 0.4 0.5 – 1.5
Ductile cast iron
FCD600, etc.
600-3, etc.		 150 – 250HB First choice AH3135 80 – 200 0.1 – 0.3 0.5 – 1.5
Titanium alloy
Ti-6Al-4V, etc.		 – HRC 40 First choice AH3135 30 – 60 0.1 – 0.3 0.3 – 0.7
– HRC 40 Fracture resistance AH130 30 – 60 0.1 – 0.3 –
Heat resistant alloy
Inconel718, etc.		 – HRC 40 First choice AH3135 10 – 40 0.05 – 0.15 0.1 – 0.3
– HRC 40 Fracture resistance AH130 10 – 40 0.05 – 0.15 –
Hardened steel 40 – 50HRC First choice AH3135 80 – 130 – 0.1 – 0.3
50 – 60HRC First choice AH3135 50 – 70 – 0.03 – 0.07

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