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General DCD Coatings

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Richter Precision, Inc. is pleased to introduce the Dynamic Compound Deposition (DCD) coating process: a proprietary low temperature coating process that synthesizes dry-film lubricant and wear resistant coating compositions. This process is ideally suited to depositing high-quality tribological coatings onto assembly/wear components in significant volumes at competitive pricing.

What is DCD coating?

Dynamic Compound Deposition is based on the principle of in situ mechanical activation and chemical transformation, and leads to considerably decreased friction coefficients and increased durability of the coating layers. Due to the specific conditions of synthesis, DCD coatings develop micro- and macro-structures that are well adapted for conditions of severe contact loading. For this reason, the DCD process is primarily suited to anti-friction, slide-wear, and high-load applications.

Richter Precision, Inc. proudly offers the following DCD coating compositions for tribological applications:

Name
Composition
Thickness (µm)
Micro-hardness (HV)
Coefficient of Friction
Oxidation Temp. (°C)
Max. Working Temp. (°C)
Process Temp.
Tribo-Kote™ S
(Mo,W)S2
1 to 3
Solid Lubricant
0.08 - 0.1
500-600
600
100°F / 38°C
Tribo-Kote™ S2
SiC / (Mo, W) S2
3 to 10
1000-1500
0.1
500-600
300
100°F / 38°C
Tribo-Kote™ S3
SiC / C-DLC
3 to 10
1500-3000
0.1
T>400
400
100°F / 38°C
Tribo-Kote™ S4
Carbon DLC
0.1 to 3
1500 - 2000
0.1
T>400
400
100°F / 38°C


Advantages of the DCD Process:

• Low temperature process (< 100°F)
• High micro-hardness (800-3000 HV)
• Low Coefficient of Friction (0.1 or less)
• Thin-film layers (.001-.010 mm.)
• Process ideally suited for high volumes
• Suitable for tight tolerances (+/-.0001)
• Relatively fast cycle times
• Deposits well onto all metal substrates
• Good corrosion resistant qualities
• Bond strength comparable to PVD
• No post-coating processing required
• Does not dramatically affect surface finish
• No significant geometry limitations
• Masking is possible, as required


The DCD coating process makes tribological coating of wear components in high volumes a cost-effective reality. Finally, improved performance and market advantage can be achieved at an acceptable cost-per-part.

Dynamic Compound Deposition in Tooling Applications

The deposition characteristics of the Dynamic Compound Deposition coating process make it extremely effective when used in conjunction with other coating processes such as PVD, CVD or TD. Typically, we will deposit a (Mo, W) S2 DCD coating on top of another coating: in this way you get the wear and abrasion benefits of the underlying PVD, CVD or TD coating layer combined with the extremely low coefficient of friction of the dry-film lubricant layer deposited with the DCD process.

This combination works well because PVD, CVD and TD all create varying degrees of micro-porosity: the DCD coating fills these micro-pores, as well as bonding to the surface of the coating layer. Even as the much softer dry-film lubricant layer wears from the surface of the coating, the DCD coating that has been impregnated into the PVD, CVD or TD micro-porosity is still acting as an effective dry film lubricant.

These standard Richter Precision Inc. PVD, CVD and TD processes used in conjunction with the Mo, WS2 DCD coating have shown dramatic tool life and performance improvement, especially in metal-forming applications:

Name
Composition
Thickness (µm)
Micro-hardness (HV)
Coefficient of Friction
Oxidation Temp. (°C)
Max. Working Temp. (°C)
Process Temp.
Titankote™C3+ S
CrN/CrC/(Mo, W) S2
3 to 7
2000-2200
0.15
550
600
700°F /375°C
Titankote™C6+ S
AlTiN / (Mo, W) S2
3 to 7
3000-3400
0.15
660
300
700°F / 375°C
Titankote™H+ S
TiC / (Mo, W) S2
5 to 15
3200-3400
0.15
440
400
1925°F / 1050°C
TDkote™ +S
VC / (Mo, W) S2
5 to 15
3400 - 3800
0.15
N/A
400
1925°F / 1050°C

If you are currently coating your metal-forming tools with PVD, CVD, or TD coating processes, it is time to consider ways to improve your current level of performance. DCD can take you to the next level.

If you are currently using no coatings on your metal-forming tools, then we guarantee that you will be amazed at the improvement in performance and overall life that these coatings can provide. With the overall savings generated through reduced scrap, reduced tooling costs, and increased production rates, you will understand when we say that you can not afford to use un-coated tools.

Please contact your Richter Precision Inc. representative for more information. We would be pleased to discuss how the Dynamic Compound Deposition (DCD) coating process can help your company. Call Today!

 

 
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