DoTwistBall

product_Milling_DoTwistBall

Radius cutter for 3-dimensional machining due to helical cutting edges

Unique twisted insert geometries assures secure insert clamping for high stability
Two types of inserts fit one cutter: radius and high efficiency inserts

Applications & Features

High feedProfilingPocketingShoulder milling RFace millingSlotting RHole enlarging

1. Multi-functional cutter body with superior reliability

• Two types of inserts fit one cutter: radius and high efficiency inserts.
• Secure insert clamping to prevent insert from moving during machining.

2. High-feed insert with greater depth of cut

• Smooth chip control enables stable machining.

 

3. Radius insert with high reliability

• Insert cross section is designed to be 2 times as large as that of a round insert.
• Excellent chip evacuation in various applications.

Inserts & Grades

Inserts

LNMX-MJ/LNMX-ML

  • Radius insert
  • Maximum depth of cut
    – LNMU04: 4.0 mm
    – LNMU05: 5.0 mm
    – LNMU06: 6.0 mm

LNMX-HJ/LNMX-HL

  • For High-feed machining
  • Maximum depth of cut
    – LNMX04: 1.3 mm
    – LNMX06: 2 mm
Grades

AH8015

  • Good balance between wear and fracture resistance
  • First choice for machining heat-resistant alloy under general cutting conditions

AH3225

  • Good balance between wear and fracture resistance
  • Suitable for 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

AH3135

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

Cutter bodies

Shank type

EXLN (ø20 – ø40 mm)

Cylindrical type holder for radius or high-feed milling

Modular Type

HXLN (ø20 – ø32 mm)

Modular head (TungFlex) for radius or high-feed milling

Bore type

TXLN (ø40 – ø63 mm)

Bore type for radius or high-feed milling

Practical examples

Part: Fixture part
Material: SUS304
Cutter: EXLN04M025C25.0R03 ( ø25, z = 3)
Insert: LNMX0405R4-MJ
Grade: AH3135
Cutting conditions: Vc = 220 ← 120 (m/min)
fz = 0.4 ← 0.1 (mm/t)
Vf = 3360 ← 535 (mm/min)
ap = 3.5 ← 3 (mm)
ae = 15 (mm)
Application: Shoulder milling
Coolant: External supply
Machine: Vertical M/C
Part: Slide core
Material: NAK80 (40HRC)
Cutter: EXLN04M025C25.0R03 ( ø25, z = 3)
Insert: LNMX0405R4-MJ
Grade: AH3135
Cutting conditions: Vc = 150 (m/min)
fz = 0.3 ← 0.15 (mm/t)
Vf = 1720 ← 573 (mm/min)
ap = 4 ← 5 (mm)
ae = 7 ← 5 (mm)
Application: Shoulder milling
Coolant: External supply
Machine: Vertical M/C
Part: Turbine blade
Material: 13Cr-Mo stainless steel
Cutter: EXLN04M032C32.0R04 (ø32, z = 4)
Insert: LNMX0405R4-MJ
Grade: AH3135
Cutting conditions: Vc = 220 (m/min)
fz = 0.30  (mm/t)
Vf = 2,626 (mm/min)
ap = 1.0 (mm)
Application: Profile milling
Coolant: Dry
Machine: Turning center

Standard cutting conditions

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