23 / 1562
1/3
1
Cutting Tools
TiN
TICN
TiAlN
AlTiN
Fire
Tools made of high-speed steel or carbide, because of their generally good basic properties, are delivered with a bright finish
without extra surface treatment. For special applications it is recommended, that the tool is optimised for diverse requirements
by surface finishing processes, to achieve the following goals:
Surface finishing benefits at a glance
– Extended service life
– Lower cutting pressure
– Higher cutting speeds and feed rates
– Better surface quality
– Better dry processing
– Optimised hard processing
Surface finishing
wear- and diffusion resistance
hardness, toughness
heat hardness, oxidation stability
Hardness, toughness, wear resistance
Lower slippage resistance
hardness, wear resistance on cast iron
Surface finishing processes in comparison
TiN
gold-yellow
single-layer
1–4
2300
0.50
max. 600°
TICN
light brown
multilayer
1–4
3000
0.40
max. 400°
TiAlN
AlTiN
violet
multilayer
3
3200
0.55
max. 750°
Fire
red
multilayer
2–6
3300
0.60
max. 850°
grey
surface treatment
max. 5
400
–
max. 550°
silver-grey
surface treatment
20
1300
–
max. 550°
Surfaces-
Colour
Coating structure
Thickness
Hardness
Friction coefficient
Application-
finishing
µm
HV
versus steel
temperature
steam
Nitrated
TiN
TICN
TiAlN
AlTiN
Fire
dampf.
nitriert
Titanium-nitride coating
Titanium-nitride is a gold-coloured protective layer applied by
a PVD process (Physical Vapour Deposition). Greater hard-
ness combined with a low friction coefficient achieves a signi-
ficantly longer service life and improved cutting performance.
Titanium carbon-nitride coating
Titanium carbon-nitride is a wear-protection layer applied
by PVD, being harder than TiN and having a lower friction
coefficient. Tool performance is increased through greater
hardness and ductility combined with improved wear. The
TiCN coating is primarily used for NC drill bits, thread bores
and end mills.
Titaninum aluminium-nitride coating
Titanium aluminium-nitride is a multi-layer ceramic coating
applied using the PVD method. The resulting greater hard-
ness and oxidation stability make this coating ideal for higher
speeds and feed rates for extended tool life. The TiAlN coa-
ting is used mainly in drilling and milling machine processes,
and is also recommended for dry processing.
Aluminium titanium-nitride coating
Aluminum titanium nitride has a higher Al content compared
to titanium aluminum nitride. This ensures an even higher
oxidation resistance and has a greater layer hardness. The
AlTiN coating is used mainly in drilling and milling machine
processes, and is also recommended for dry processing.
Fire coating (TiAIN/TiN)
Fire is a TiAIN/TiN multi-layer coating with a gradient struc-
ture. The combined benefits of TiAlN and TiN coatings are
very good wear resistance with high thermal stability, hard-
ness and toughness. In addition to the conventional wet
application, this layer can also be used for minimum quantity
lubrication and dry machining. Fire coating is suitable for all
spiral drills, thread bores and end mills, as well as removable
discs.
Steam tempering
Steam tempering is a form of surface processing which
reduces slide resistance and prevents edge build-up.
Cold welding can also be avoided.
Steam tempering is primarily used with drills and thread
bores.
Nitriding
Nitriding is a surface machining process that increases hard-
ness and wear resistance. Particularly for working with highly
abrasive materials such as cast iron, which nitriding is parti-
cularly suitable for. Nitriding is primarily used with drills and
thread bores.
Nitrated
steam
23