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Coating Application Guide
Coating Properties
Physical Vapor Deposition, Questions and Answers

Coating Application Guide

Cutting Tools Infinium
Material Being Machined
Carbon Steel * * *
Alloy Steel * * *
Hardened Alloy Steel * * *
Stainless Steel * * *
Cast Iron * * *
Titanium * * *
Nickle Based Alloys * *
Kovar * *
Forming and Stamping Dies * *
Forging and Extrusion Dies * *
Die Casting Molds *
Plastic Molds (Abrasion Resistance) * *
Plastic Molds (Corrosion Resistance) * *
Plastic Molds (Release Problems) *
Poor Lubrication Applications *


Coating Properties

Cutting Tools Infinium
Microhardness (HV) 2500-3000 3000-3700 2100-2500 3000-3700 2200-2600
Coefficient of Friction* 0.5 0.4 0.5 0.4 0.5
Thickness (um) 1-4 1-4 1-4 1-4 1-4
Oxidation Temperature (°C) 500 400 650 900 550
Color gold grey, copper silver violet-black bright gold
*against steel (dry)


Physical Vapor Deposition, Questions and Answers

How thick is the coating? 1-4 microns thick (25 microns = 0.001 inch)
What is the build-up? Uniform 1-4 microns over the entire surface being coated.
Can I re-coat? Yes, but increased film stress due to coating thickness may cause failures.
What does PVD mean? Physical Vapor Deposition.
What is the difference between PVD and CVD (Chemical Vapor Deposition)? CVD coatings are usually thicker and are done at higher temperatures.
How much does the coating penetrate into the surface? Not at all.
Can you strip the coating? Yes, on steels.
Can you “mask”certain areas of the tool? Yes, the shank of a cutting tool is automatically masked. Masking on other types of parts can be done for additional cost.
Can you coat over black oxide? No.
Can you coat over chrome plating? Yes.
I already have tools coated with TiN; but now I want TiAlN. Can you simply coat over the TiN? Yes, but there may be issues with the total coating thickness and performance will not equal coating on uncoated tools.
How do you price the coating? Coating type, quantity, part size, and load size.
Can you “double dip” the tool for me? No, coatings are optimized for the correct thickness. Too thick and the coating will fail.
What about coating inside diameters? We can coat 1-1/2 times the diameter of the bore down into the part.
What can you coat? Carbides, Steels (some considerations due to temperature), light alloys (engineering approval), non-ferrous heavy metals (engineering approval), electroplated parts (engineering approval)
Can you coat aluminum? Yes, but requires engineering approval.
I have a tool that I only need the tip coated so can I get a better price? No, coating price is based on the total volume that the tool takes up.
What is the smallest tool you can coat? Tools as small as you can make. Tools as small as 0.015″ are common. Smaller tools may require special tooling.
What is your turn around time? Typically 3-5 days for PVD.
Can you do 24 hr. or 48 hr. service? How much? Yes, with expedite charges.
Do I have to do anything special to the tools before I send them in? No.
Do you have quantity breaks for better pricing? Consult with our Sales Staff.
What about “brazed tip” tooling? We need to know the braze temperature.
How long does the actual coating process take? 6 to 8 hours.
Can I clean the tools/parts myself and save time and money? No, the cleaning is an important part of the coating process.
Do I need special coolants for coated tools? No.
Can I run “dry” with coatings? Speak with our Application Engineers.
Do you have a minimum order charge? $100.00