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Meusburger Coatings increase the service life of cutting punches

| Editor: Steffen Donath

A coating can make an enormous difference in various areas. With the right coating for the right job, the service life of a tool can be extended and machine downtimes can also be reduced this way.

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Coated cutting punches from Meusburger
Coated cutting punches from Meusburger
(Source: Meusburger)

The abrasive and adhesive wear that occurs during the stamping process on the cutting punch is minimised by coatings. This leads to a significant increase in the service life of cutting punches and consequently also reduces machine downtimes. In addition, the retracting forces are reduced due to the lower coefficient of friction. Different coatings are used depending on the materials to be punched. We provide you with an overview of the common coatings with their respective properties and application areas in the following:

 Titanium nitride (TiN)

TiN is considered the classic standard coating and is often used today. This coating is tried and trusted for cutting tools. TiN coated cutting punches are suitable for sheet metal with low and medium hardness.

 Aluminium chromium nitride (AlCrN)

AlCrN is the most commonly used ‘all-round coating’ and covers the largest area of application. In terms of performance, the AlCrN coating is clearly superior to the TiN coating. In contrast to TiN, this coating is also recommended for sheet metal with high hardness.

 Diamond-like carbon (DLC)

The DLC coating has been used in mould making applications for some time now to minimise wear on guide pillars, centring devices and ejectors. Due to the very low coefficient of friction, DLC coated cutting elements are used for punching non-ferrous materials such as aluminium, brass or copper, as these are prone to galling.

 Comparison

The graph compares the service life of the different coated punches. The increase in service life when a coating is applied is evident.

The graph compares the service life of the different coated punches.
The graph compares the service life of the different coated punches.
(Source: Meusburger)

Configurable cutting punches with coating

In Meusburger’s innovative online cutting punches configurator, the cutting punches can be individually configured with the desired coating in addition to the cutting dimensions, special length etc.: www.meusburger.com/cutting-punches-configurator. The CAD data is then immediately available for download.

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