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By RUSSELL 
Date 11-08-2010 04:06
Edited 11-08-2010 21:29
-deleted original post by RUSSELL
Note to INEEDHELP:
I merged all of the questioning threads into this one to clean up the forum, all duplicate threads were deleted.
Any further spamming or shot gunning all of the boards with the same question will be dealt with by the admin. or myself.
The forum users here are great folks when you have serious questions and they have a great wealth of knowledge that carries over from multiple fields of welding and inspection. People use this forum for serious questions and do not want to have to sift through lots of one word posts to find answers to their questions.
Please ask questions if you cannot find the answers within the archives. I certainly do not want anyone to be shy about asking questions, but your previous method of questioning was completely out of hand and must stop immediately.
-Moderator-
John Wright
how do x rays and uv light differ? wavelenghts .... velocity of propagation..... uv light has greater penetration powers... or uv has greater enegy
a transformer has 1000 windings in the primary and 100 windings in the secondary and 460 volts at 30 amps applied to the secondary ... what is the secondary??
what is an arc welding power source which has unchanging potential called
can an irregular bead with poor penetration under cut and not enough weld metal in the joint be caused by travel speed being to slow?
Think about the question... is this a true or false question?....is there anything at all in that statement that would make the statement false?
.....travelling too slow usually does what?
.....travelling too fast does what?
with me John to slow makes fall out or blow thur and to fast is undercut and no penetration
When thinking about travelling speeds, I think about it piling up when travelling too slow, and then when travelling too fast, it doesn't have time to fill in.
so i was 1/2 right i was just explaing what happens with me
I took your 1st reply as 100% correct, because what you described is exactly what can happen....travelling really, really slow will make you burn through and fall out the bottom, and visa versa
I learned the hard way that i was moving to slow and burning to hot lol
It's a bad question all around in my opinion. Need more info...
Horizontal spray GMAW or FCAW can have undercut if the speed is too slow from the effects of gravity or undercut from going too fast, because there is no time too fill the pool.
Poor penetration can come from too fast or too slow with just about any process if the weld metal piles up or is starved.
I agree, I was assuming SMAW as those types of questions had pictures showing a weld that was welded way too fast.
By jwright650 
Date 11-09-2010 14:03
Edited 11-09-2010 14:07
Hey John,
After careful thought:
Answer1: Late for work.....
Answer2: Get you a speeding ticket.....
Denny
Very True. LOL
a transformer has 1000 windings in the primary and 100 windings in the secondary and 460 volts at 30 amps appleid to the secondary... what is the secondary?
That sounds like a homework problem on the design and functions of a welding power supply. This question and the other question on series inductor can be answered by reading the Welding Handbook, Chapter One, Welding Processes.
46 volts @ 300 amps assuming no losses.
Best regards - Al
what gmaw method eses high currents high voltage large diameter filler wire to weld in mostly flat and horizontal
Now don't you wish you read the assignment!
Al
LMAO Al!! Must be a trick question
I think he saw the question and panicked.
Hey Mods,
Hopefully one of you will send this OP to the Twilight Zone.....he will be right at home....
Denny
C'mon guys, go easy on him. His homework questions are very difficult, and this isn't something a quick google search would turn up.
He's asking about the GMAW "uphand weave method". This is used with your hand "up" above the weld traveling horizontally, and moves the wire quickly, because of the high currents and large diameter filler involved.
;)
Um, respectfully speaking rlitman, he did not ask about a "technique" or method of manipulation... He asked what method of transfer that uses high currents, high voltage large diameter filler wire to weld in mostly flat and horizontal positions, although he didn't quite spell the word "uses" (Maybe he was in a hurry? ;) ) completely and left out the word transfer... I believe that is what the OP meant to convey in the original post... This poster can indeed find the answer in the book quite easily if he or she just decides to open it up for once and try! ;)
Now I'm not going to give the poster an answer because I do believe that the OP can find the answer to the question in any decent Welding Technology book which covers the GMAW process as well as many other processes used in modern welding today... So to the original poster, open the book and read it to find the answer to your question because the answer is easier to find than you think! ;) ROTFLMFAOAAA!!! :) :) :)
Respectfully,
Henry
Oh, I see my mistake in interpreting his question. See, that's why it was a tricky question. I guess up hand was just assumed as the technique, but he needs to know the method of transfer.
Ok, back to the subject:
He's talking about male type (since this is GMAW and the wire is coming out of the gun) Cathode Anode Transfer in the spray mode then, or "male CAT spray" for short.
This should be obvious, because with female type or Short-circuit Positive Anode Yttrium Erbium Doped or (SPAYED for short), you don't get into spray mode.
;)
Am I the only one who understood your answer?
HAHA.
Your really >spray< those questions around eh?
Thats a big knowledge >transfer<
Time to get into study >mode<
Are you for real? Get any current welding textbook available to you and read. This is not the place to come ask questions like this. If you were one of my students I would fail you in a heart beat.
does ANSIZ 49.1 allow oxygen to be used as a sub for compressed air when necessary?
read the ansi bulletin you referenced.
ANSI Z49.1
Available for free download at AWS.org
does ANSIZ 49.1 allow oxygen to be used as a sub for compressed air when necessary?
Now this is one that needs a more serious answer.
The good news is that AWS actually has ANSI Z49.1 "Safety in Welding, Cutting, and Allied Processes" available for free on their site:
http://www.aws.org/technical/facts/This is a must for everyone to read. You'll have to read this yourself for the answer. Sorry I can't help with this one.
does DCEN mean the work piece lead is connected to the negative terminal of the power supply?
Ugh, another trick question.
Isn't that Digitally Controlled Entropy Nozzle. That's a special term for computer guided laser welding which doesn't have a terminal (unless it's done in a train or bus station).
INEEDHELP,
Enough is enough Jack. Read the book.
RTFB. Welding is not just a job Son its an ADVENTURE.It can be a GREAT ADVENTURE IF you are WILLING to WORK at it.
Do have a serious question about this subject. Why does a welder need to know how many volts/ amps off of a secondary? I am having enough trouble learning how to manipulate the rod let alone learn electricity on the side.
The secondary side is the welding side, you need to know where your machine is operating to know that you are welding within the welding procedure parameters.
Thank you, makes sense now.
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