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23rd Apr 2015, 08:39 PM #1Most Valued Member
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Need someone to look over my welds
hey guys ive done some welding today and need someone to look over my weld, these are MIG welds i cant see much thru my helmet as my eye sight is poor i can however see most of where my joint is before its welded butcant really focus on the molten bead
anyways enough of that can someone tell me if these welds are sufficient? im welding 65x35x2.5mm RHS steel if these are ok welds i will tie in the corners as i do the other sides
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23rd Apr 2015, 10:21 PM #2Member
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What a strange request or is this some sort of set-up. Have you considered wearing eye glasses?
Experienced in removing the tree from the furniture
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23rd Apr 2015, 11:00 PM #3Most Valued Member
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Hi Gazza, depending on the type of helmet you use, magnification lenses are available for the inside of the helmet. I know they are available for about 90 X 45 sized lenses, not sure for the new auto lenses. Your welds look OK too, a lot better than I've seen others do.
Kryn
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23rd Apr 2015, 11:46 PM #4Most Valued Member
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rod i found that funny u thought this may be a setup lol nah mate its a genuine question i dont have any qualifications for welding and i have limited experience, i do the odd welding job probably two to three times a year so i dont do much welding
i do need glasses mate im 34 and last time i had a eye check i couldnt read the bottom line i know im in crap i need contact lenses but havent done anything about it so far
Kyrn yeah im using one of the $50 ebay auto helmets more than likely made in china thing is i can see TIG welding fine thru the same helmet but mig is at a fast pace and by the time my eyes adjust im finished the weld lol, thanks for checking out the welds it gives me confidence that im going down the right path, just wasnt sure about my welds
just if argon was free iwould be doing much better tig welds but at $100 buck a bottle i'd go thru a few during this project lol so flux cored mig it is
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24th Apr 2015, 12:56 AM #5Senior Member
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Is this "gasless mig" can be a bit hard to see the pool with gassless. Also too gasless your ment to drag along similar to stick welding. Might weld you see a bit better.
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24th Apr 2015, 01:04 AM #6Most Valued Member
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i went out to the shed about half an hour ago armed with a torch and believe it i have the welder set up gun positive with gasless wire that explains the spatter, i will grind down the welds and re do them,do u think the gun positive is why i couldnt see the arc properly? ill also pick up some engineers chalk hopefully i can see the line and where to weld
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24th Apr 2015, 09:11 AM #7Diamond Member
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You always get a bit of spatter with gasless - can't remember if what's there is excessive or not.
A couple of things to help see - you can remove the gas shroud to give you a much better view of the tip, you can run forwards or backwards as needed (which is actually the same for gas MIG) and you can run a fan across the job to blow the smoke away.
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24th Apr 2015, 09:52 AM #8New Member
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Hey Gazza, this might seem like a silly question but does your helmet have a "grind" & "weld" mode? I say this because you said it takes a while for your eyes to adjust and it maybe on grind mode... I've done that before. Also does your helmet have a shade adjustment on it? My helmet has shade adjustment from 9-13 with 9 being lighter and 13 being darkest. I usual tig on 9 and mig on 13. Because the arc is much brighter.
Having a good light source before you start the arc is also a good thing to help see the joint. Just some ideas.
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24th Apr 2015, 11:58 AM #9Most Valued Member
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rusty i will remove the gas shroud and give that a try
mark it only has light to dark knob on the side ive tried all settings and its on the best one for TIG but i still cant see the MIG weld
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24th Apr 2015, 02:46 PM #10Most Valued Member
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i may start again guys, the steel im using now has been sitting out the back for around 4-5 months so a little rusty and its 65x35x2.5mm im actually thinking of making the whole trailer from 50x50x5 and using a 65x65x?for the drawbar
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24th Apr 2015, 07:53 PM #11Most Valued Member
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ok today i cleaned up some scrap and tested "gun positive top weld" and "gun negative bottom weld", the correct way of welding with gasless wire gun negative the heat thats came off it was bloody hot i used my tig gloves not a good idea... lol but the weld looks a lot smoother, does the bottom bead look sufficient? if so i will use that for future welds and aim for the same thing
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24th Apr 2015, 08:15 PM #12New Member
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Need someone to look over my welds
Looks like your getting good penetration on the bottom weld. A good test of the set up is butt welding to piece of scrap together at 90 degree. Weld it up and then bash it with a hammer until it breaks. If the steel breaks before the weld you're on a winner. Mig welding also requires a good earth so make sure you clean a good contact point for your earth clamp.
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24th Apr 2015, 08:38 PM #13Most Valued Member
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very good advice mark thanks for that i done that once before on aluminum weld but i forgot all about it since i dont weld much, ill weld a couple pieces together and use the sledge hammer to try break the weld once im happy its an ok weld i will weld the job old age im forgetting all the little tricks lol
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25th Apr 2015, 12:21 AM #14
If you wear reading glasses to read then you need to wear them to weld. If they are bifocal or multifocal they will be no good to weld with, you need the single focal length like the cheap readers from the chemist or big w, going up to a higher level (say if you can read with +2 then go to +2.5)will also help with your welding.
Your helmet will have clear lenses to protect the shaded lens, these need to be replaced regularly as they become cloudy when wiped. Cheap auto helmets are not as clear before or after darkening.
GMAW solid wire/gas shielded, +ve hand piece.
FCAW tubular wire/flux core, -ve hand piece.
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25th Apr 2015, 12:31 PM #15Most Valued Member
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