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What is the best tool coating for your metal removal application?

March 31st, 2011

The ability to prolong the life of your cutting tools depends greatly on the type of tool coating used. A post in MoldMaking Technology speaks about this topic:

The right surface treatment on small round tools can increase overall life, decrease cycle time and promote better surface finishes. Unfortunately, choosing the right coating for your high production application can be a confusing and arduous task. Each one has advantages and disadvantages in the machining process. An improper selection can lead to less tool life than an uncoated tool and sometimes result in more problems than solutions.

There is a vast selection of PVD (Physical Vapor Deposition), CVD (Chemical Vapor Deposition) and alternate surface treatments that are readily available from your manufacturers or coating facilities. This article will better associate you with some common coating attributes and some popular PVD and CVD choices. Each one of these characteristics plays a major role in determining which treatment may be the most beneficial for an application.

The article goes on to talk about different coating characteristics such as hardness, wear resistance, surface lubricity, oxidation temperature and anti-seizure.

It also mentions the different types of common tool coatings, such as Titanium Nitride (TiN), Titanium Carbo-Nitride (TiCN), Titanium Aluminum Nitride (TiAlN or AlTiN), Chromium Nitride (CrN) and Diamond.

A cost-effective coating can be dependent on many things, but there are usually one or more viable choices for every application. Choosing the correct coating and its attributes can mean the difference between a successful operation and one that shows little to no difference. Depths-of-cut, speeds and coolants can all have an effect on the way a surface treatment may react.

It can be very difficult to determine the best coating systems for your machine tool applications. Tru-Edge can assist with this and figure out the best solution for you.  Contact us today with any questions or view our coating systems page for more info on what we offer.