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End Mill Coatings

In stock, uncoated tools can now be coated in 3 days or less!!*

Applying a coating to a tool allows the user to substantially increase speeds and feeds while minimizing tool wear. So that you may choose the best coating for your particular application, Melin provides any one of our 3 standard coatings (TiN, TiCN, and AlTiN) for the same coated price. Most common sizes are stocked with coatings.

Melin coats nearly all tools in house using a state of the art coating center in our Cleveland facility. Controlling the coating process allows us to:

maintain excellent coated tool inventories
preserve low costs associated with coating tools
reduce lead times to apply coatings to uncoated tools

To order standard coated tools, simply add TiN, TiCN, or AlTiN after the tool name or change the 1 in the first digit of the EDP number to 2 for TiN, 4 for TiCN, or 5 for AlTiN.

Other coatings include nACo (read complete details in this Cutting Tool Engineering article), ZrN, CVD, and PVD.

* Standard coatings (TiN, TiCN, AlTiN).

Standard coatings:

Titanium Nitride (TiN)
Titanium Carbonitride (TiCN)
Aluminum Titanium Nitride (AlTiN)

Other coatings available:

nACo - Aluminium Titanium Nitride + Silicon Nitride
CVD Diamond Coating (Dia)
Zirconium Nitride (ZrN)
Black Oxide

TiN - Titanium Nitride
Hardness - 2900HV Thermal Stability - 950F

The ideal coating for a wide range of applications, materials, and cutting conditions where tool life and higher feeds and speeds are operating objectives. The high lubricity of TiN facilitates chip flow, prevents build up and reduces cutting forces and temperature. TiN reduces wear and improves chip formation to extend tool life. TiN is a good choice for for the machining of iron-based materials, molding of plastics, and for components requiring resistance to abrasive and adhesive wear.

TiCN - Titanium Carbonitride
Hardness - 4000HV Thermal Stability - 750F

An exceptional high hardness and low coefficient of friction coating which provides excellent wear resistance. TiCN performs well cutting alloy steels, stainless steels, and in high speed cutting where moderate temperatures are generated at the cutting edge. Provides an excellent surface quality on machined components. Also, excellent in applications which require high feed and speed rates.

AlTiN - Aluminum Titanium Nitride
Hardness - 4500HV Thermal Stability - 1450F

AlTiN has very similar features to TiAlN. It is ideal for high temperature cutting operations in the same materials as TiAlN and has the same oxidation effect. AlTiN has a higher aluminum content which makes it much harder and smoother than TiAlN. It is ideal for smaller depths of cut and excels in high speed and dry machining applications and when machining hardened steel.

STANDARD COATING APPLICATION CHART

		EDP First Digit	Hardness	Thermal Stability
TiN	Titanium Nitride	2	2900HV	500C (950F)
TiCN	Titanium Carbonitride	4	4000HV	400C (750F)
AlTiN	Aluminum Titanium Nitride	5	4500HV	800C (1450F)

Material	Hardness	1st Choice	2nd Choice
Aluminum		TiCN	TiN
Alloy Steel	160-240HBn	TiN	TiCN
Alloy Steel	23-38	TiN	TiCN
Alloy Steel	>38	AlTiN	AlTiN
Carbon Steel	160-240HBn	TiN	TiCN
Carbon Steel	23-38	TiN	TiCN
Carbon Steel	>38	AlTiN	AlTiN
Hardened Steel		nCAo	AlTiN
Low Carbon Steel	130-240HBn	TiCN	TiN
Low Carbon Steel	23-38	TiN	TiCN
Low Carbon Steel	>38	AlTiN	AlTiN
Gray Cast Iron	180-220HBn	AlTiN	AlTiN
Nodular Cast Iron	220-320HBn	nCAo	AlTiN
Austenetic Stainless Steel	180-220	TiCN	TiN
Martinsitic Stainless Steel	<35	AlTiN	TiCN
Martinsitic Stainless Steel	>=35	nCAo	AlTiN
Ni Alloys		nCAo	AlTiN
PH Stainless Steel	<35	AlTiN	TiCN
PH Stainless Steel	>=35	nCAo	AlTiN
Ni, Co, Fe Based Superalloys		AlTiN	AlTiN
High Si Aluminum		nCAo	AlTiN
Titanium		nCAo	AlTiN

Find the right coating for the job along with current prices and availability in our tool search area.

* In July 2002, Melin discontinued the use of TiAlN as a standard coating. We highly recommend the much harder AlTiN coating for TiAlN applications (AlTiN: 4500HV vs. TiAlN: 2600HV).

MELIN TOOL COMPANY • 5565 Venture Drive, Cleveland, Ohio 44130
Phone: (800) 521-1078 or (216) 362-4200 •Fax: (800) 521-1558 or (216) 362-4230

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