Coating Classifying and Advantage |
| Coating Type | AlTin | TiAlN | TiSiN | Naco |
| Hardness(HV) | 3300 | 2800 | 4300 | 42(GPA) |
Thickness(UM) | 2.5-3 | 2.5-3 | 3 | 3 |
Oxidation Temp.(°C) | 900 | 800 | 1000 | 1200 |
Friction Coefficient | 0.35 | 0.3 | 0.25 | 0.4 |
Color | Black | Bronze | Bronze and gold | Blue |
| High heat stability | Normally cutting | Suitable for heavy cutting, and high hardness cutting | For high precision cutting |
Suitable for high speed, dry cutting | Suitable for cutting mould steel, stainless
steel | Suitable for high hardness cutting, mould steel processing |
Most suitable for carbide cutting tools, turning insert | | |
For longer tool life and a better finish in general purpose milling
applications, these solid carbide end mills are harder, stronger,
and more wear resistant than high-speed steel and cobalt steel end
mills.
Their extreme hardness means they are brittle, so a highly rigid
setup, such as a CNC machine, is necessary to prevent the end mill
from breaking.
They have a ball end for milling rounded slots, slopes, and
contours.
All are center cutting, allowing plunge cuts into a surface.
End mills with fewer flutes provide better chip clearance for
high-volume, high-speed plunge, slotting, and roughing cuts;
end mills with more flutes provide a finer finish and operate with
less vibration when run at high speeds.
Use uncoated end mills for general purpose milling and short
production runs.
Use coated end mills for demanding, high-speed jobs in hard
material as well as for longer production runs.
They’re more wear resistant than uncoated end mills.
Titanium-nitride (TiN) coated end mills create less friction than
uncoated end mills, which means they last longer when run at
similar speeds.
Titanium-carbonitride (TiCN) coated end mills have a hard, smooth
finish that resists chipping and wear and prevents material from
accumulating on the cutting edge.
They’re especially good for use in aluminum.
Titanium-aluminum-nitride (TiAlN) coated end mills dissipate heat
better than other end mills, especially at high speeds.
At high temperatures, the coating creates a layer of aluminum oxide
that transfers heat to the chips, keeping the tool cool, even when
used without lubrication.
