roughness of CRC TS Coating
08-26-2008, 02:42 PM, (This post was last modified: 08-26-2008, 02:57 PM by mehongbo.)
#1
roughness of CRC TS Coating
Hi,

Does anyone know the typical surface roughness of TS crc coating after grinding should be on combustion parts?

Thanks

H.B.
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08-26-2008, 03:27 PM,
#2
RE: roughness of CRC TS Coating
Hi H.B.

Sign0016 to the Surface Engineering Forum.

First I assume "crc coating" is chromium carbide/nickel chromium coating.

I don't know what is typically required for combustion parts, but typical Ra roughness capabilities for these coatings lies somewhere between 0.1 - 0.6 micrometres for grinding with possibility of getting down to ~0.05 with lapping/super-finishing. Obviously, this is very dependent on process parameters, materials and grinding procedures.
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08-26-2008, 07:42 PM,
#3
RE: roughness of CRC TS Coating
(08-26-2008, 03:27 PM)Gordon Wrote: Hi H.B.

Sign0016 to the Surface Engineering Forum.

First I assume "crc coating" is chromium carbide/nickel chromium coating.

I don't know what is typically required for combustion parts, but typical Ra roughness capabilities for these coatings lies somewhere between 0.1 - 0.6 micrometres for grinding with possibility of getting down to ~0.05 with lapping/super-finishing. Obviously, this is very dependent on process parameters, materials and grinding procedures.


Very good. I appreciate it Gordon

H.B.
Reply
10-14-2010, 09:56 AM,
#4
RE: roughness of CRC TS Coating
(08-26-2008, 03:27 PM)Gordon Wrote: Hi H.B.

Sign0016 to the Surface Engineering Forum.

First I assume "crc coating" is chromium carbide/nickel chromium coating.

I don't know what is typically required for combustion parts, but typical Ra roughness capabilities for these coatings lies somewhere between 0.1 - 0.6 micrometres for grinding with possibility of getting down to ~0.05 with lapping/super-finishing. Obviously, this is very dependent on process parameters, materials and grinding procedures.

Great answer! Normally we get Ra to .125~.25 on combustion parts.
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