Questions about welding stainless

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Re: Questions about welding stainless

Postby Dude » Sat Jul 24, 2021 10:36 am

20210724_100902.jpg


This is what I use bluc.
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Re: Questions about welding stainless

Postby bluc » Sat Jul 24, 2021 2:18 pm

Good idea :handgestures-thumbupleft: I am still few weeks away from starting. Still need few bits and pieces. Found the shop with the regulator thanks.
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Re: Questions about welding stainless

Postby bluc » Sat Jul 24, 2021 2:21 pm

When jointing stainless to copper with filler wire do you use stainless or copper wire?

I realise most seem to just fusion but thought some filler would make for a nice flat join once sanded back?
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Re: Questions about welding stainless

Postby RuddyCrazy » Sat Jul 24, 2021 3:21 pm

bluc wrote:When jointing stainless to copper with filler wire do you use stainless or copper wire?

I realise most seem to just fusion but thought some filler would make for a nice flat join once sanded back?


Bluc I've never done this before and as I finally have a day off tomorrow I'll fire up my tig and try it using 309 SS filler rod. 309 is a good one for joining dissimilar metals and I have welded cast iron using 309 welding rods before with great success.

Just setup your new toys and have a go mate as that is the best way to learn instead of asking to be spoonfed every detail :laughing-rolling: :laughing-rolling: :laughing-rolling: if you stuffup well mate it's part of the learning curve and you can then say don't do it that way but if you do it again well mate the blonde cap will be put on few weeks :laughing-rolling: :laughing-rolling: :laughing-rolling:

Also a good fused joint should be nice and flat and no sanding needed.
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Re: Questions about welding stainless

Postby bluc » Sat Jul 24, 2021 4:13 pm

:handgestures-thumbupleft: watching tube video some say fusing can leave a concave shape..
Itching to get started just gotta do some other stuff first..
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Re: Questions about welding stainless

Postby Dude » Sat Jul 24, 2021 4:33 pm

bluc wrote:When jointing stainless to copper with filler wire do you use stainless or copper wire?

I realise most seem to just fusion but thought some filler would make for a nice flat join once sanded back?


I use silicone bronze. It is brazing rather than welding.
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Re: Questions about welding stainless

Postby Dude » Sat Sep 11, 2021 8:37 am

This is a before and after cleaning the stainless welds. I used a brush on product which does not require a poisons licence and works well. It took about 20 min then a quick rub with a piece of scotchbrite.
If it is allowed I will post the product and where I got it from.


mini size.jpg
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Re: Questions about welding stainless

Postby RuddyCrazy » Sat Sep 11, 2021 4:47 pm

Eh Dude that a huge weld mate, now a trick i found when I was working in the food industry was to bend a filler rod around the joint then fuse the weld and keep the whirlpool under 5mm. If one purges the weld will be on both sides and be of food grade :handgestures-thumbupleft:

So try it mate and see just how well it works. It worked for me and I'm sure you will have great results so give it a go mate but the start tack I'll leave to you so you can learn.

Cheers Bryan
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Re: Questions about welding stainless

Postby bluc » Sat Sep 11, 2021 5:05 pm

Is that walking the cup bryan? Dude would be interested to hear bout that paste for sure :handgestures-thumbupleft:
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Re: Questions about welding stainless

Postby RuddyCrazy » Sat Sep 11, 2021 5:16 pm

bluc wrote:Is that walking the cup Bryan? Dude would be interested to hear bout that paste for sure :handgestures-thumbupleft:



Yes it is mate if the right size cup is chosen then it is a breeze :handgestures-thumbupleft:
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Re: Questions about welding stainless

Postby Dude » Sun Sep 12, 2021 8:57 am

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Re: Questions about welding stainless

Postby bluc » Sun Sep 12, 2021 11:02 am

I was wondering about that i spotted it a while back good to know it works :handgestures-thumbupleft:
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