TungThread

product_Turning_TungThread

Effective threading tools for CNC lathes, Swiss-type lathes, and multitasking machines

Standard items cover a wide variety of threading inserts

Applications & Features

External threadingInternal threading

1. Internal coolant tool holder

• Optimized two streams of high-pressure coolant jets to maximize productivity.
• Applicable direct connection with tube free.

Inserts & Grades

Inserts

External threading Inserts

  • Standard inserts covering a wide variety of thread types

Internal threading Inserts

  • Standard inserts covering a wide variety of thread types
Main Grades

AH725

  • P15 – P30 / M15 – M30 / K25 – K30 / S15 – S25
  • Good balance between wear and chipping resistance
  • Suitable for machining steel and stainless steel under general cutting conditions

SH725

  • P20 – P30 / M20 – M30
  • High wear resistance
  • Designed for machining steel and stainless steel

AH8015

  • M01 – M20 / S10 – S20
  • Good balance between wear and fracture resistance
  • First choice for machining heat-resistant alloy under general cutting conditions

Toolholders

External Threading

TungThread Toolholders

Internal Threading

TungThread Toolholders

Practical examples

Part: Shaft Parts
Material: 42CrMo4/SCM440
Toolholder: STVOL2525M4 (Vertical style)
Insert: TNMC43NT6PSTUBPT (3 croner)
Grade: AH725
Cutting conditions: Thread shape = Stub ACME (3 ¾ (95.25mm))
Vc = 70 m/min (230 sfm)
TPI = 6 TPI (4.23mm)
Number of passes = 30
Application: External Threading
Coolant: Wet
Machine: NC Lathe

Standard cutting conditions

Lay-down inserts
ISO Workpiece Workpiece
materials
Hardness Cutting speed Vc (m/min)
AH725 AH8015 T313V NS9530 TH10
Carbon steel < 200 HB 80 – 180 80 – 180 100 – 200 150 – 200
> 200 HB 60 -160 60 -160 100 – 150 100 – 170
Stainless steel 50 – 130 50 – 130 70 – 130
Cast iron 70 – 150 70 – 90
Aluminium 100 – 500
Heat-resistance alloys 10 – 40
High hardened steel 50 – 60 HRC 10 – 30

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