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Arc welding ?

General Tech Talk

Moderators: toaddog, TWISTY, V8Patrol, Moderators

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Arc welding ?

Post by Dozoor »

Ok Q for the stick weld gurus ,
Always weld ok on the flats ,

But need to do some GOOD -- GOOD UPS :roll:

What is wrong with my technique ,

Welding upwards more amps than i use on flat , stick aimed nearly stright at the weld just a touch down at the hand 5/10 deg --

And i suck :oops:

Please giva me cluessss--
Engineer sees this trash he will Freak :roll:

Larry.
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Re: Arc welding ?

Post by redzook »

Dozoor wrote:
Please giva me cluessss--
Engineer sees this trash he will Freak :roll:

Larry.


so the engineer is happy with stick welding on suspesion mounts and that?

turn the car over so u r welding flat :D
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Post by OVERKILL ENG »

Less amps and a triangle type shape with electrode.
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Post by CHOPZUKI »

aim the rod up about 15 degrees, keep a short arc.

little higher amps is good it will make it easier.

try not to use triangle method with stick as you will get porosity running over the top of welds .

instead with stick you should use a side to side method like a ( but horizontal, like a slight u. move side to side as you slowly work it up. dunno if that makes sense but hope it helps. this is the way i was taught to do vertical up fillets.

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Post by matthewK »

welding up or down is very very hard with a stick welder

but welding down steady hand keeping it at 45deg angel and at a quicker speed then you would flat

welding up is a c**t of a job and im steel trying to learn that one

but for me most things that i want the job to look perfect i just weld with the migs at work :D

maybe try getting ur hands on a mig

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Post by Dozoor »

Thanks guys will throw all the clues at some scrap in the morrow,

x fingers , front chassis mounts where easy only on angles ,
But rears are verticals and are in a spot that will stand out like pos,s meer cat nuts.


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Post by Bush65 »

Make sure your electrodes are suitable for welding vertical - a good electrode can make a lot of difference.
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Post by V8Patrol »

Which way are you going ....up or down ????

Verticle UP:
set the amps to slightly higher,
angle the rod up slightly from the hand ( about 2" on a full rod)
weld from one plate to the other in a horizontal direction and for about 8mm ( asuming you are welding 4mm plate here )
stop for 3-4 secs
weld from one plate to the other in a horizontal direction and for about 8mm
stop for 3-4 secs
weld from one plate to the other in a horizontal direction and for about 8mm
stop for 3-4 secs
weld from one plate to the other in a horizontal direction and for about 8mm
stop for 3-4 secs

This is a simple solution for verticle ups and is reasonably strong, for increased strength run a verticle down first then a verticle up over the top of it


Verticle down:
Tricky weld for the novice but once mastered it gets a fair flogging, its also no all that strong on its own .....
increase amps
angle the rod up 30 degrees from the hand
weave the rod tip slightly from side to side about the thickness of the rod as you come down, sort of like a "Z" pattern. This allows the slag to fall off from the side of the arc and not down into it which is what causes most of the problems.
This technique is also a simple one and as you can see all you are really doing is very short horizontal welds on both styles.

Its largely practice and practice and then practice some more

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Post by bru21 »

check the fillets carefully after welding as flux can remain trapped in the crutch. use the colour as an indication, as the glow dies away start your next burn. the hotter without running the better for continuity and strength. remember its not the engineer you have to impress, rather your own safety that counts.

cheers

bru
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