Spray Welding
 

Does anyone know who does this?

Re: Spray Welding
 

Most electric motor shops will spray or metalize shafts & thurn them down. That is what you are after isn't it?

Re: Spray Welding
 

Tiz,

In addition to what Jason stated, look for companies
performing "thermal coatings", "plasma spray" and
"wire spray". Those are some common names for
the process.

It works by melting the media (wire or powder) which
makes it a plasma and then re-depositing it onto the surface
to be coated. It does not heat the part up like normal welding
or cause problems with embrittlement such as platings. The
build-up can also be reasonably thick to allow for re-machining.

The only caution is you must find a product that meets
your requirements for wear resistance, corrosion,
hardness, etc..etc.

Good luck.

Re: Spray Welding
 

There is a place in Brooksville Florida that does i called Bryner Machine. They actually got into when they were asked to buils a few of the machines for another company and they wound up building one for themselves. Pretty cool stuff.

Re: Spray Welding
 

Isn't that what we did on my Oddysey gas tank?

Re: Spray Welding
 

I found that it works on light duty applications but it will peel off under heavy duty loads.

I know of a few places around Chicago that does that type of work.

Re: Spray Welding
 

What are you looking to coat?

Re: Spray Welding
 

What did you break now, Greg?! :D

Re: Spray Welding
 

Then the bonding surface wasn't preped right, dirty, or the area to be sprayed wasn't machined deep enough.
My dads machine shop used to build spray equipment for METCO, a company that was in Westbury, Long Island. We also bought several spray booths and guns so we could do our own work. Some of the jobs we did were rollers for news paper printing presses. These rollers were 16' long and 4' in diameter, solid steel, weighed in around 3600 lbs. We sprayed the bearing surfaces and applied a special coating to the surfaces that contacted the paper.
We also sprayed the interior of giant pump housings for EXXON Corp.. The housing was wine glass shaped, about 6' in diameter and 5' tall. These pumps moved some sort of abrasive slurry that ate the insides out of the pumps. Our coating application alowed them to double the life span and repair the worn housings.
We did many, many smaller shafts and a couple automotive crankshafts. We even sprayed an aluminum hard coat to the inside of aluminum alarm bells where the striker hit the bell.
I never heard of one delaminating during the 4 years I worked there.

Re: Spray Welding
 

Additional seaches you may perform will be arc spray, flame spray or DOD-STD-2138 SH is the military name for sprayed metals. Generally these coatings are used to repair or enhance existing materials. Apply aluminum onto a cheap and strong milds steel surface 8-10 mils of aluminum for instance for corrosion protection. Concrete statue may be coated with bronze or coper and after weathering look like a metal work of art. Navy uses this process under 2138 for corrosion protection. Many times surfaces such as shafts are built up with steel and other alloys. Do not confuse this with structural repair - If you have a hole in you BB 540 arc spray will not be the way to fix this. Flame, HVOF or Plasma are generally used on small parts,10 sq/ft or less, arc spray is used to coat large surfaces including thousands of sq/ft

Re: Spray Welding
 

See that you are in Ohio, there is a company here in Dayton OH called Industrial Grinding that does flame spray. Might what to try them, but I have to warn you, they are pricie.
One of the best in the business though, they do alot of work for GE Aircraft Engines, their stuff CAN'T come off.

Re: Spray Welding
 

How about spraying a stainless steel coating on the steel prop shaft of a SSM 5 or 6 drive? Will this process work for that application and not effect the strength and temper of the metal. Goal is to eliminate rusting/pitting of the shaft.

Any phone numbers for you guys that do this?

Rick

Re: Spray Welding
 

We Can Do It.......shoot Me An Email

Re: Spray Welding
 

Iggy
Does your dad still do plasma spraying? We currently use Plasma coating and are always looking for other vendors.

Re: Spray Welding
 

Thanks for all the good info!!! I found a shop in Cecil Ohio that can do plasma spraying they do this all the time and works very well!! RV I am welding the bearing surface on a propshaft for a #4 SSM the place i am using said this is a piece of cake. Will See.......

Re: Spray Welding
 

Must be Hart's. Tell Randy I said HI!

RD

Re: Spray Welding
 

Yes that wasn't hard, as to there is nothing else in that town.
I will say hi.

Re: Spray Welding
 

SSM prop shafts had a hard chrome surface where the seal ran. If it's a #3 early shaft... they can be "sleeved" in stainless ( I did this to mine) if they are the later shafts with the splines only on the end... then they will have to be hard chromed and regound. I have a guy that can do that too. AT A REASONABLE PRICE... Call me ( 818 ) 240-2923

Re: Spray Welding
 

tizbad4,
I was talking with Matt at TNT or Galen at Speedmasters and he said that when ever they welded on the shaft it would break (especially if it was used in a Cat application). Not sure what type of welding he was referring to, my guess was to fill pits is shaft and regrind for seal surface. Don't know how this differs from what you are having done or the 'spray welding' that is being discussed.

Rick

Re: Spray Welding
 

Yes I also spoke to Galen and he was refering to other welding not spray welding.

Re: Spray Welding
 

baja27, sorry, no. He retired and sold the business, which is now closed, about 28 years ago. I tried looking up a listing for METCO Industries but I think they too went belly up.