html-Catalog FORMAT plus - EDE 2015 - 2017

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Milling Cutters

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 tools are optimised for diverse applications by surface finishing processes, to achieve the following goals:

Surface finishing benefits at a glance TiN

– Extension of the tool's life – Reduced cutting force – Increased cutting speed and feed rate

wear- and diffusion resistance

TICN

hardness, toughness

heat hardness, oxidation stability Hardness, toughness, wear resistance Slippage resistance hardness, wear resistance on cast iron

TiAIN

– Improved surface finish – Improved dry processing – Optimised hard processing

Fire

2 Cutting Tools

Nitrated steam

Titanium-nitride coating TiN Titanium-nitride is a gold-coloured protective layer applied by a PVD process (Physical Vapour Deposition). Higher hardness combined with a lower friction coefficient achieves a significantly longer service life and improved cutting performance. The TiN coating is primarily used for drills and thread bores.

Fire coating (TiAIN/TiN) Fire Fire is a TiAIN/TiN multi-layer coating with a gradient structure. The combined benefits of TiAlN and TiN coatings are very good wear resistance with high thermal stability, hardness and toughness. In addition to the conventional wet application, this layer can also be used for minimum quantity lubrication and dry machining.

Titanium carbon-nitride coating TiCN 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, ductility com- bined with improved wear. The TiCN coating is primarily used for NC drill bits, thread bores and end mills.

Zirconium-nitride coating ZrN Zirconium-nitride is suitable for machining non-ferrous materials, and especially for aluminum alloys. This coating is not good for cold welding of aluminium. Associated with high layer hardness and oxidation resistance are advantages that increase tool service life and effective feed rate and cutting speed

Steam tempering steam 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.

Titaninum aluminium-nitride coating TiAIN Titanium aluminium-nitride is a multi-layer ceramic coating applied using the PVD method. The resulting greater hardness and oxidation stability make this coating ideal for higher speeds and feed rates for extended tool life. The TiAlN coating is used mainly in drilling and milling machine processes, and is also recommended for dry pro- cessing.

Nitriding Nitrated Nitriding is a surface machining process that increases hardness and wear resistance. Particularly for working with highly abrasive materi- als such as cast iron, which nitriding is particularly suitable for. Nitriding is primarily used with drills and thread bores.

Titaninum aluminium-nitride S coating TiAlN-S This coating is particularly recommended for machining hardened materials (> 70 HRC). It is used mainly for end mills and is characterised by high wear resistance. Dry machining is also possible as is HSC machining.

Signum coating (TiALN/SiN) Thanks to the special nano-composite structure with a protective layer of TiALN and SiN this coating, with 5500 HV is one of the hardest on the market. Particularly for hard machinability materials. High standard wear resistance combined with high diffusion resis- tance. Signum

Diamond coating This coating is particularly suitable for the processing of reinforced plastics, aluminum and copper alloys. The friction coefficient on steel is very low. Diamond

Surface finishing processes compared

Surfaces- finishing

Colour

Coating structure

Thickness

Hardness

Friction coefficient

max. 600° max. 400° max. 750° max. 1200° max. 350° max. 850° max. 900° max. 550° max. 550° max. 800° Application- temperature

µm

HV

versus steel

gold-yellow light brown

single-layer multi-layer multi-layer multi-layer

1 –4 1 –4

2300 3000 3200 4500 5000 3300 3400 400 1300 5500

0.50 0.40 0.55 0.45 0.15 0.60 0.50

TiN

TiCN

violet

3

TiAIN

blue

0.5–4 0.5–2 2 –6 0.1–3

TiAlN-S

black

–

Diamond

red

multi-layer multi-layer

Fire

light-gold

ZrN

grey

surface treatment surface treatment

max. 5

– –

Nitrated steam

silver-grey red-bronze

20

multi-layer

1 –5

0.55

Signum

2/3