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Badger1bear
If your not on fire, then your too far away
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dont weld in the rain to avoid shock
Richard.
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There is a really long drawn out answer to this with every case scenario involved but I'll stick to a short one.
The weld could break and depending on what that weld is doing or holding people could die. Simple.
breckarns
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thanks I appreicate that
Richard.
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If there is a WPS involved then there is a reason the company/customer has paid to have one of those created for the job. Going outside of procedure can lead to legal proceedings taken against the welder/company depending on the severity of the outcome. H&S would definitely investigate with intention to prosecute if it caused an accident.
breckarns
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Thanks Richard, but what if we're talking purely about welding indoors for example a workshop
daleyd
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I'm not a professional welder but surely common sense would tell you that it depends on what is being welded? If it's something structural then the effects could be catastrophic causing multiple deaths/ injuries. If it's a nut and bolt sculpture in someone's living room then the effects are nil.
As said above, how long is a piece of string?
As said above, how long is a piece of string?
breckarns
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That's a very technical question for someone just starting out, most beginners post a picture of some snotted on blobs and ask what thery're doing wrong.
Sounds more like an exam question rether than just someone asking for a bit of advice.
I apologise for asking people who have been doing it for years what could potentially happen if I use the wrong settings
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I was just kidding, it's just not the usual sort of beginner's post we get on here.
I'm guessing you're doing a course of some sort rather than having just bought a welder and learning how to use it?
Richard sums it up well, using the wrong settings could lead to a catastrophic failure if the item being welded is used in a critical application.
I'm guessing you're doing a course of some sort rather than having just bought a welder and learning how to use it?
Richard sums it up well, using the wrong settings could lead to a catastrophic failure if the item being welded is used in a critical application.
Badger1bear
If your not on fire, then your too far away
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most beginners post a picture of some snotted on blobs and ask what thery're doing wrong.
.
I would like to see you say that the next time a newbie posts up a picture of his first attemp LOL
breckarns
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Ah right, well I've had a couple of weeks to get my head around the basic stuff. Yes welding is part of the mechanical engineering course that I'm on, so there isn't any exams I would just like to know the effects on a small-scale thing like i'm doing.
You'd probably get a weld which looks bad, in which case, you wouldn't trust it if you had any sense.
You could get a weld which looks good but has no penetration and would be deceptive. It could fail under load and the consequences of it failing would depend on what the application was. If you were serious about building whatever it was, lifting gear, kids swings, especially if it was for sale, there'd be approvals, a WPS and testing.
Most amateur welding projects designed to carry any sort of load and have a risk of dangerous failure are heavily over-engineered, added to which, I think most of us aren't called on to do things like that, and would be inclined to steer clear.
You could get a weld which looks good but has no penetration and would be deceptive. It could fail under load and the consequences of it failing would depend on what the application was. If you were serious about building whatever it was, lifting gear, kids swings, especially if it was for sale, there'd be approvals, a WPS and testing.
Most amateur welding projects designed to carry any sort of load and have a risk of dangerous failure are heavily over-engineered, added to which, I think most of us aren't called on to do things like that, and would be inclined to steer clear.
cumbriasteve
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He has come very close to in the pastI would like to see you say that the next time a newbie posts up a picture of his first attemp LOL
Badger1bear
If your not on fire, then your too far away
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Badger1bear
If your not on fire, then your too far away
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- kent
Challenge accepted
now we wait for a
now we wait for a
Richard.
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Been more specific then.
Traveling too fast equates to very low heat input which generates hardness and a brittle HAZ
Too slow has the opposite effect. High heat input large grain structure in the weld and the result is low mechanical toughness. Too much wire speed can result in a cold weld if it's highly exaggerated as you chill the pool with high amounts of cold metal. But it can also lead to burn through as wire speed increase increases penetration. Too little wire feed gives lack of penetration. Voltage gives arc spread and generally increasing it too far beyond the rate of wire been fed in causes undercut. Too little volts and cold laps, lack of fusion are the effects. These are the common effects of going too far/not far enough with the basic settings.
Traveling too fast equates to very low heat input which generates hardness and a brittle HAZ
Too slow has the opposite effect. High heat input large grain structure in the weld and the result is low mechanical toughness. Too much wire speed can result in a cold weld if it's highly exaggerated as you chill the pool with high amounts of cold metal. But it can also lead to burn through as wire speed increase increases penetration. Too little wire feed gives lack of penetration. Voltage gives arc spread and generally increasing it too far beyond the rate of wire been fed in causes undercut. Too little volts and cold laps, lack of fusion are the effects. These are the common effects of going too far/not far enough with the basic settings.
