Search found 1462 matches

by noddybrian
Sat Feb 08, 2020 4:53 am
Forum: Welding Forum General Shop Talk
Topic: medical oxygen tank- weldable alloy?
Replies: 13
Views: 1766

Re: medical oxygen tank- weldable alloy?

I was'nt aware that the pressure rating was reduced for gas & have regularly used them mainly as breathing air filters for use when diving off a surface compressor - never had one fail but equally I can;t say they are meant to be used this way - I probably should check up more on safety stuff ! ...
by noddybrian
Fri Feb 07, 2020 4:55 pm
Forum: Welding Forum General Shop Talk
Topic: medical oxygen tank- weldable alloy?
Replies: 13
Views: 1766

Re: medical oxygen tank- weldable alloy?

I've welded a bunch of assorted aluminum air & oxygen cylinders - never obviously going back into high pressure service but for any number of oddball uses - all welded fine - may I suggest it's easier to start with some form of filter housing than making from scratch from cylinders if your makin...
by noddybrian
Fri Feb 07, 2020 4:43 pm
Forum: Welding Forum General Shop Talk
Topic: Moving a shop sucks !
Replies: 14
Views: 1957

Re: Moving a shop sucks !

Moving really does suck - I feel for anyone having to move ( especially not of their own choice ) I been at it for weeks & still got stuff left - can't believe the amount I had & it's all heavy ! had some help but still trying to get hold of a crane lorry to move 2 lathes - 2 mills a drill &...
by noddybrian
Mon Jan 13, 2020 6:37 pm
Forum: Tig Welding - Tig Welding Aluminum - Tig Welding Techniques - Aluminum Tig Welding
Topic: Trying to decide on a Tig rig but I’m in a unique situation.
Replies: 63
Views: 9090

Re: Trying to decide on a Tig rig but I’m in a unique situat

Earth protection trips at least in the UK ( RCD's )tend to be 30ma trigger for house applications but these often cause nuisance tripping when used in outbuildings for a number of reasons where there is often no fault - there are however 80ma trigger breakers that can be used for certain purposes &a...
by noddybrian
Sat Jan 11, 2020 4:31 pm
Forum: Tig Welding - Tig Welding Aluminum - Tig Welding Techniques - Aluminum Tig Welding
Topic: Cast enginr repair
Replies: 13
Views: 1488

Re: Cast enginr repair

A little more info on the nature of the part would help - I think it unlikely from the pic that it is a valve seat or any top end engine part with what appears to be a needle roller bearing next to it - if we assume this is some sort of gear case & the bearing is an end support for a shaft then ...
by noddybrian
Fri Jan 03, 2020 7:24 pm
Forum: Welding Projects - Welding project Ideas - Welding project plans
Topic: Noob Welding in a Van
Replies: 27
Views: 6798

Re: Noob Welding in a Van

Lighten up on him guys - first off welcome to the forum dopefreerain. Fair point on the fuel tank - please make sure the patch you intend to weld is well away from that & fuel lines or wiring looms - the vehicle does not need to be " grounded " just ensure the earth clamp is as close a...
by noddybrian
Sat Dec 21, 2019 3:22 pm
Forum: Mig and Flux Core - gas metal arc welding & flux cored arc welding
Topic: fuel tank fabrication
Replies: 3
Views: 1409

Re: fuel tank fabrication

Welcome to the forum justynjspuk. Mig is fine for welding tanks & would be the most logical choice in steel as it is suited to seam runs without putting in excessive heat & causing undue warping ( Tig is OK for little tiny ones or stainless but usually quite unnecessary ) - sure others will ...
by noddybrian
Fri Dec 20, 2019 9:32 am
Forum: Tig Welding - Tig Welding Aluminum - Tig Welding Techniques - Aluminum Tig Welding
Topic: Argon Leak Between Reg and Tank
Replies: 13
Views: 3192

Re: Argon Leak Between Reg and Tank

@ VA-Sawyer - my bad - sorry for the confusion - it's weird how it's possible to be so sure in the mind yet wrong on something in reality - the reason I say it's BSP is over the years I've made various fittings to adapt cylinders or regulators & keep taps & dies in 5/8" BSP - I thought ...
by noddybrian
Wed Dec 18, 2019 3:06 pm
Forum: Tig Welding - Tig Welding Aluminum - Tig Welding Techniques - Aluminum Tig Welding
Topic: Argon Leak Between Reg and Tank
Replies: 13
Views: 3192

Re: Argon Leak Between Reg and Tank

I agree the threads only create a clamping force on the cone seat so any blemish on either side of the seat can cause a leak but I doubt scotchbrite will help - it really only polishes the brass shiny - any damage will still be there - regulators mostly leak only when they've been dropped & have...
by noddybrian
Mon Dec 16, 2019 4:21 am
Forum: Metal Cutting
Topic: Portable band saw cutting
Replies: 10
Views: 3176

Re: Portable band saw cutting

Stand came with it free all included for £150 & a 3 year warranty - slightly fiddly to take on & off the stand but really cuts straighter than I imagined when on the stand.
by noddybrian
Fri Dec 13, 2019 3:16 pm
Forum: Metal Cutting
Topic: Portable band saw cutting
Replies: 10
Views: 3176

Re: Portable band saw cutting

I recently got a cheapo portable bandsaw just for a site job not expecting to like it but have been very pleased with it for the price - it came with a horizontal stand which is basically one from a14" chop saw - I think if you find a dead chopsaw in the trash it would be fairly easy to adapt t...
by noddybrian
Tue Dec 03, 2019 3:23 pm
Forum: Stick Welding/Arc Welding - Shielded Metal Arc Welding
Topic: What i am doing wrong
Replies: 12
Views: 2223

Re: What i am doing wrong

A couple of thoughts - you have plenty of available amps & the 5mm material will easily allow you to use a bigger rod say 3.25mm which is far easier to start with - I always find the little 2mm like you have seem more difficult so maybe reserve those for thinner material & buy some bigger ro...
by noddybrian
Tue Nov 19, 2019 3:47 pm
Forum: Welding Forum General Shop Talk
Topic: Hot ground clamp
Replies: 9
Views: 1064

Re: Hot ground clamp

Yes - but according to the Vogons resistance is futile !
by noddybrian
Fri Nov 15, 2019 3:16 pm
Forum: Tig Welding - Tig Welding Aluminum - Tig Welding Techniques - Aluminum Tig Welding
Topic: Repair of gun part
Replies: 6
Views: 976

Re: Repair of gun part

I'd like to find something constructive to say about that but really at a loss for words ! if the responsible party is ever found they are truly in need of a pineapple !
by noddybrian
Fri Nov 08, 2019 4:46 am
Forum: Tig Welding - Tig Welding Aluminum - Tig Welding Techniques - Aluminum Tig Welding
Topic: Magnesium saw repair
Replies: 9
Views: 1554

Re: Magnesium saw repair

I'm doubtful it's magnesium - likely just an alloy with some in it - if it actually is nearly all magnesium them from my limited experience it's not worth trying to conventional weld it - last time I tried to ( part was unknown but not expected to be magnesium ) it caught fire close to the weld &...
by noddybrian
Wed Nov 06, 2019 5:05 am
Forum: Tig Welding - Tig Welding Aluminum - Tig Welding Techniques - Aluminum Tig Welding
Topic: Student - Stainless 2G w/o Gap kicking my back side - HELP
Replies: 8
Views: 955

Re: Student - Stainless 2G w/o Gap kicking my back side - HE

That's looking good - really solid progress congrats - I feel that a joint with a corner is easier to follow & traps the shielding gas - I find that open corners / flat grooves are harder as my eyesight is very poor & I don't have much vision in my right eye - it was a good call to try a dif...
by noddybrian
Wed Nov 06, 2019 4:56 am
Forum: Welding Forum General Shop Talk
Topic: Tapped Holes on Welding Table
Replies: 8
Views: 1512

Re: Tapped Holes on Welding Table

My take on the tapped holes is if your doing stick / mig on the table absolutely don't have them - if your doing exclusively Tig & the table is thick enough to restrain parts from moving while welding then yes it can be useful - I assume the thread used matches the generic cheapo mill clamp sets...
by noddybrian
Mon Oct 28, 2019 3:24 pm
Forum: Mig and Flux Core - gas metal arc welding & flux cored arc welding
Topic: 1ph vs 3ph
Replies: 6
Views: 967

Re: 1ph vs 3ph

Every 3 phase welder I've used seems to run smoother & better than on 240 volts - no science to back this up but I think as the arc changes during welding this causes current fluctuations & the higher voltage combined with less time of the supply going through 0 volts gives a smoother more s...
by noddybrian
Wed Oct 23, 2019 1:36 pm
Forum: Tig Welding - Tig Welding Aluminum - Tig Welding Techniques - Aluminum Tig Welding
Topic: Auto Darkening Helmet
Replies: 7
Views: 982

Re: Auto Darkening Helmet

Solar charged helmets can suffer with lack of available light to keep the battery maintained when stored so it's always worth leaving them out in the sun or under the strongest available light source for a few hours to be certain - it is however far more likely that due to a combination of low amps ...
by noddybrian
Sun Oct 20, 2019 7:56 am
Forum: Welding Forum General Shop Talk
Topic: GENERATOR/WELDER/COMPRESSOR
Replies: 11
Views: 1313

Re: GENERATOR/WELDER/COMPRESSOR

An inverter generator to power small tools is a good idea - they drink less fuel & are quiet - obviously powering a welder is a bit different - the size required alone is a problem. I would not call the Mosa junk - I know quite a few small service vans that carry one around as they are very rest...
by noddybrian
Sat Oct 19, 2019 4:40 pm
Forum: Welding Forum General Shop Talk
Topic: GENERATOR/WELDER/COMPRESSOR
Replies: 11
Views: 1313

Re: GENERATOR/WELDER/COMPRESSOR

I've used one of those Mosa welders a few times in a pinch but really can't say I liked it - no way would I buy one - they have very poor arc strike & snuff out real easy ( I presume but can't confirm very low OCV ) I also don't feel they put out what is claimed in amps but this was a well used ...
by noddybrian
Tue Oct 15, 2019 3:24 pm
Forum: Metal Cutting
Topic: How to drill a 1.5" diameter hole
Replies: 21
Views: 5730

Re: How to drill a 1.5" diameter hole

Thanks Mike - been a while since I watched it - could'nt remember exact quote- now I'm hoping for a thread where we can work in the Dyatlov " 3.6 Roentgens not great - not terrible " quote from Chernobyl ! it's my new favorite !
by noddybrian
Mon Oct 14, 2019 3:35 am
Forum: Mig and Flux Core - gas metal arc welding & flux cored arc welding
Topic: Böhler E71T-1C/1M 045 dual shield wire
Replies: 1
Views: 635

Re: Böhler E71T-1C/1M 045 dual shield wire

Looks good - never tried wire from them but till the price got crazy I used & liked they're 7018 - it was the go to rod for doing a test plate. good job on the filming - it's not easy getting arc shots - could possibly be a little brighter ? I take it you had the camera behind an auto dark hood ...
by noddybrian
Wed Oct 09, 2019 2:50 pm
Forum: Welding Forum General Shop Talk
Topic: I need opinions on a repair...
Replies: 22
Views: 1652

Re: I need opinions on a repair...

Only logical choice of threads used in that era here would be BSF or BSW ( as it's bigger than BA runs to ) & you appear to have neither ! so someone subsequently using what they had at hand for a repair has likely used metric - M8 would be 20.32 TPI so I'd try a metric bolt in them or clean the...
by noddybrian
Sat Oct 05, 2019 3:13 pm
Forum: Mig and Flux Core - gas metal arc welding & flux cored arc welding
Topic: New to welding, just looking for some advice
Replies: 13
Views: 1670

Re: New to welding, just looking for some advice

@ Oscar - sorry can't provide a link - it was in my local Lidl store a while back - ( not sure you guys have Lidl across the pond but it's much like Aldi ) they do special offers every Thursday & Sunday - sometimes it's tools & on that occasion they had the dreaded 130 amp flux core welder w...