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topic 28824

Grinding HVOF coatings

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Looking for
HVOF
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A discussion started in 2004 but continuing through 2018

(2004)

Q. We want to cylindrical grind thermally sprayed HVOF coatings(chromium carbide and tungsten carbide). In a second case the coating is to be flush ground with metallic uncoated steel(SS 316 or hardened EN24)

If anybody can suggest suitable grinding wheel, tips, techniques. Expert and experienced advice will be highly appreciated.

VIKRAM
THERMAL SPRAY JOB SHOP - CHANDIGARH, INDIA


(2004)

A. Conventional grinder equipped with large diameter, narrow diamond wheel will cut carbides as butter. Otherwise if you use standard wheels, you will be wasting valuable time, wheel and the machine will suffer a lot to cut through it.

Guillermo Marrufo
Monterrey, NL, Mexico


March 2, 2008

A. Of course carbide is very hard and you need diamond to cut it.
I'm HVOF experienced operator, I would like to know more about your question to help you

Hamid H
- Bezier, France



March 4, 2018

Q. We are providing services of HVOF coating of tungsten carbide & chrome oxide,we are facing vibration and rough surface during grinding. Can anyone recommend the best grinding or polishing wheel to get the roughness of the surface below Ra 2.

Muhammad Karam
Abahsain Group - Alkhobar Saudi Arabia


April 12, 2018

A. When we grind TCC we use special diamond edged cutters. We are fortunate that a company around the corner from us makes these up especially for us, but I'm sure similar products exist on the market.

Oliver Gwynne
B&B precision - Huddersfield, west yorkshire, UK


sidebar2 May 1, 2018

thumbs up sign I guess the duration from the time the thread started till now (14 years)..calls for an award..RIGHT TED !!!!

vikram dogra
Vikram Dogra
Irusha India - Chandigarh, India


May 2018

Hi Vikram. I don't know offhand whether your response on your own thread 14 years later is the widest ranging time period for a single person or not, but thanks for sticking with us through thick and thin :-)

Your earliest posting was on topic 4562 on leap day 2000. Currently, the oldest thread with a response in 2018 is topic 0085 started in 1995.

Something I'd really love to see is for one of the elementary school students who posted a science project question in the early days to return and tell us they've earned their doctorate :-)

Regards,

pic of Ted Mooney
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey
Striving to live "Aloha"



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