html-Catalog FORMAT plus - EDE 2015 - 2017

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Surface finishing

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:

1 Cutting Tools

– Extended service life – Lower cutting pressure – Higher cutting speeds and feed rates

– Better surface quality – Better dry processing – Optimised hard processing

Surface finishing benefits at a glance

wear- and diffusion resistance hardness, toughness heat hardness, oxidation stability Hardness, toughness, wear resistance Lower slippage resistance hardness, wear resistance on cast iron

TiN

TiN 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.

TICN

TiAlN

AlTiN

Fire

steam

Nitrated

TICN 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. TiAlN

Fire 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.

dampf.

Steam tempering is primarily used with drills and thread bores.

AlTiN 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.

nitriert 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.

Surface finishing processes in comparison

Surfaces- finishing

Colour

Coating structure

Thickness

Hardness

Friction coefficient

max. 600° max. 400° max. 750° max. 850° max. 550° max. 550° Application- temperature

µm

HV

versus steel

gold-yellow light brown

single-layer multilayer multilayer multilayer

1–4 1–4

2300 3000 3200 3300 400 1300

0.50 0.40 0.55 0.60

TiN

TICN

violet

3

TiAlN

AlTiN

red

2–6

Fire

grey

surface treatment surface treatment

max. 5

– –

steam Nitrated

silver-grey

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