Carbide

Excellence in precision machining and machining of hard-to-cut materials
These material grades use WC micro-grain carbide, the hard layer of which is granulated to a micro size 1µm as the substrate. Furthermore, the substrate is coated by the PVD method with TiN, TiCN, and/or TiAlN. The end results are materials that are suitable for precision machining and machining of difficult-to-cut materials. Inserts in these grades are tougher and harder than carbide and come with precision sharp cutting edges. They even have superior toughness and sharper cutting edges than ultra micro-grain carbide grades, with excellent wear resistance and thermal crack resistance.

Carbide grade

General carbide structure

General carbide structure

Micro-grain carbide structure

Micro-grain carbide structure

Super micro-grain carbide structure

Super micro-grain carbide structure

The result of intensive reseach and development for improving carbide grades
The NTK carbide grade series shows very stable performance under a wide range of conditions. NTK uses micro-grain carbide well balanced between wear resistance and toughness, as substrate.
Features

Superior cutting performance

No burrs

Machined with our insert with a sharp cutting edge

Burrs

Machined with a competitor's product with a honed cutting edge

Relentless pursuit of better cutting performance
NTK takes pride in its carbide grade series.
Their outstanding cutting performance is due to the grinding of ultra sharp cutting edges. Sharper cutting edges provide for better burr control, lower tool pressure, holding tighter tolerances and reducing work hardening.
Features

Precise analysis on insert wear patterns

Build-up edge

Build-up edge

Chipping / fracture

Chipping / fracture

Flank wear

Flank wear

Wear on rake

Wear on rake

Continuous research on insert tool life
Damage to insert cutting edges varies depending on the machining process and the work material. There are various types of coatings that reduce such damage to prolong the tool life. NTK's carbide series offers a variety of coated insert grades which have been developed to improve their resistance characteristics, including wear, fracture, adhesion, oxidation and the like, by utilizing our state-of-the-art technology.

QM3

Superb wear resistance and fracture resistance in interrupted cutting

QM3

Spindle
4135Spindle
330 SFM
.0012 IPR
.008" DOC
WET
NTK : QM3 600 pcs
Competitor's
PVD-coated carbide
300 pcs
Features
  • Excellent toughness and wear resistance for wide speed range
  • Stable interrupted machining of steel
Best for Optimized for Excellent in
  • Carbon steels
  • Stainless steels
  • Alloy steels
  • Heat resistant alloys

Swiss-type lathes

Conventional lathes

Wear resistance

DT4

Excellent heat resistance for Swiss-type lathes

DT4

Pin
440 CSSPin
260 SFM
.002 IPR
.039" DOC
WET
NTK : DT4 1100 pcs
Competitor's
PVD-coated carbide
800 pcs
Features
  • Excellent oxidation resistance for Swiss-type lathes
Best for Optimized for Excellent in
  • Titanium alloys
  • Stainless steels
  • Alloy steels
  • Carbon steels
  • Heat resistant alloys

Swiss-type lathes

Oxidation

Heat resistance

DM4

Excellent oxidation resistance

DM4

Case
Inco 718Case
130 SFM
.001 IPR
.008" DOC
WET
NTK : DM4 110 pcs
Competitor's
PVD-coated carbide
90 pcs
Features
  • Best oxidation resistance for high temperature machining
  • Optimized for Conventional / Swiss-type lathes
Best for Optimized for Excellent in
  • Titanium alloys
  • Stainless steels
  • Alloy steels
  • Carbon steels
  • Heat resistant alloys

Conventional lathes

Swiss-type lathes

Oxidation

Heat resistance

TM4

Next generation standard insert grade Swiss-type lathes

TM4

Automobile parts
304 SSAutomobile parts
260 SFM
.0008 IPR
.047" DOC
WET
NTK : TM4 950 pcs
Competitor's
PVD-coated carbide
500 pcs
Features
  • Excellent dimensional stability and tool life thanks to triple titanium layers with excellent adherence to insert substrate
Best for Optimized for Excellent in
  • Carbon steels
  • Stainless steels
  • Alloy steels

Swiss-type lathes

Balance

VM1

High precision machining of small diameter parts

VM1

Plug
12L14Plug
460 SFM
.0006 IPR
.004" DOC
WET
NTK : VM1 800-1000 pcs
Competitor's
PVD-coated carbide
150 pcs
Features
  • Especially for machining free cutting steels (SUM materials)
  • For high-precision machining with longer tool life even in the high-speed machining range
Best for Optimized for Excellent in
  • Carbon steels
  • Stainless steels
  • Alloy steels

Swiss-type lathes

Edge sharpness

ZM3

The best selling grade for automatic lathes

ZM3

Case
1010Case
330 SFM
.0047 IPR
.012"-.015" DOC
WET
NTK : ZM3 6000 pcs
Competitor's
PVD-coated carbide
 150 pcs
Features
  • Stabilizes machining dimensions thanks to the coating being firmly adhered to the substrate
  • A wide range of cutting tools in various sizes available for automatic lathes
Best for Optimized for Excellent in
  • Carbon steels
  • Stainless steels
  • Alloy steels
  • Non-ferrous materials

Swiss-type lathes

Conventional lathes

Adhesion resistance

Coating Specifications
  Q-Coat TM-Coat DM-Coat DT-Coat V-Coat Z-Coat
Thickness Thick Thin Thick Thin Thin Thick
Wear Resistance  
Heat Resistance      
Adhesion Resistance        
Edge Sharpness      
Composition TiCN Multilayer Multilayer Multilayer TiCN TiN

◎1st choice   ○2nd choice

KM1

Good for non-ferrous materials like PEEK, Brass, Aluminum and Copper

KM1

Spool machining
5056(Aluminium)Spool machining
300-560 SFM
.0016 IPR
.02"-.20" DOC
WET
NTK : KM1 300 pcs
Competitor's
PVD-coated carbide
200 pcs
Features
  • Very sharp cutting edges with uncoated Micro-grain carbide
  • Excellent adhesion resistance because of mirror-finish
  • A wide range of cutting tools in various types available for Swiss-type lathes
Best for Optimized for Excellent in
  • Aluminium
  • Plastic
  • Non-ferrous materials

Swiss-type lathes

Edge sharpness

KM1

CP1

For roughing cast iron and ductile cast iron

CP1

HUB
Ductile Cast IronHUB
660 SFM
.0047 IPR
.004" DOC
WET
NTK : CP1 200 pcs
Competitor's
CVD coated carbide
100 pcs
Features
  • High wear resistance achieved by laminating thick film TiCN layer and Al2O3 layer as the coating; Great for cast iron cutting even in high-speed range
  • Excellent deposition resistance due to our original insert rake surface treatment to bring the mirror finish
  • Can also be used for machining ductile cast iron
Best for Optimized for Excellent in
  • Ductile cast iron
  • Gray cast iron

Conventional lathes

Wear resistance

CP1