September 1st, 2006 
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Like in all domains that require precision of execution, welding makes use of conventional standard signs that help to the better execution of a weld according to blueprints. The welding symbols systematized by the American Welding Society indicate the exact place where welds need to be made, the kind of joint necessary for it and the amount of filler to be used in the joint. Learning how to work with welding symbols is part of the training programs welders have to attend before receiving any certifications. What do welding symbols actually consist of? The main basic elements are the arrow, the reference line and the tail.
All welding symbols are built starting from the reference line, this is the very foundation of the sign as such on which you add other data necessary for the process. The connection between the reference line and the joint area is made by the arrow, but the direction of the arrow has no influence on the meaning of the reference line. Last but not least, the tail is not a compulsive element of all welding symbols, some have it, others don’t. It is generally used in case you want to add some information or supplementary specification to the process.
There are all sorts of peculiarities connected to the use of welding symbols. For instance, if any signs are included in the lower part of the reference line, you’ll have to make the weld on the side of the joint indicated by the tip of the arrow. In case the welding symbols are present on the upper side of the reference line, then the weld needs to be made on the side opposite to the direction pointed by the tip of the arrow. Both sides of the joint must be welded when you have signs included on both sides of the reference line. Deciphering such instructions from blueprints is essential for the proper working of the welding process.
Two kinds of welding symbols may appear on the reference line and they are essential when it comes to understanding how to make a specific weld. The most important sign here is a circle that means “welding all around”, thus, you will have to make the weld all around the joint in the direction indicated by the tip of the arrow. Sometimes it is not possible to weld around one single surface, and in such cases, the presence of the circle would be incorrect. Under such circumstances there should be other specificities related to the process.
Watch the video related to welding
interesting instruction to acetylene weld
Help answer the question about welding
Can a woman succeed in the welding world?I want to know if there are any welders out there, who can give me some pointers in which direction to head, when I get out of welding school. I'm in my 40's, pretty dang gung-ho, and want enjoy what & where I'm welding.
About Author
Muna wa Wanjiru Has Been Researching and Reporting on Welding for Years. For More Information on Welding Symbols, Visit His Site at WELDING SYMBOLS
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oh my god. stupid landlords.
I’m sure I lived in that building. In the aparment those two windows on the right go in to. This is really weird to see.
(my username is purely coincidental btw)
Ramshack-ian!
The fabrication of hull of large ships is normally done by panels assembled into blocks then the blocks are assembled into sections of the vessel and finally the sections are joined to form the hull.
First, panels consisting of plates and stiffeners are made. In the fabrication of the panels submerged arc welding is most suitable since most of the welding are made on flat surfaces and these can be done using automatic welding machines. Several of these machines can be run by a single operator
.For the assembly of the blocks however, most of the welding operations are done manually because automatic welding machines may no longer be suitable.
Manual arc welding is also used in the assembly of the blocks to form a section of the vessel and also for welding the sections of the hull together.
My suggestion is that you take one of those 6 week welding courses at the local college.
You just don't start by reading a book.
Now i have an office job, but i have been a welder fitter for 20 years.
Make sure the first thing you buy is a fire extinguisher
Do not use welding glass. It does not protect camera lens at all.
Go to a store and buy appropriate filter even a bigger one and attach it to your camera.
Crazy. . . It’s awesome that you got it all on video though. I’d love to see the welder guys deny that in court.
you use what is most comfortable you need to be able to see the puddle of molten metal to make sure you have good penetration and a decent looking bead I prefer a glass #10 and a glass cover plate how ever I'm thinking of buying a self darkening helmet as the price has come down to around $ 50 the auto darkening system has been on the market for about 15-20 years my brother bought one when they first came out and paid about $ 275 but the novelty wore off for him you can get a auto darkening from http://www.harbor freight.com Do not look at the light with out a welding lens as you will burn your eyes out!
The WPS is the specific directions instructing the welder in how to execute the weld. It would specify method (mig, co2, stick, submerged arc, etc.), material for the base metal and the filler metal, directions of travel, position of the weld (horizontal, vertical, angular, etc), voltage, and similar variables.
Any WPS must be qualified to demonstrate that it produces the weld characteristics that are desired. It then becomes the recipe so to speak for each welder to follow.
A WPS is typically written by a person experienced in welding.
good job fera!
welding is a physically demanding job, regardless of the type, most of the time you are sitting or standing for long periods of time, but it is also a great trade to have, if your asking about strength, it depends on the job, if you are production welding then you do not need to be very strong, but if you are a welder-fitter you would need alot of strength, because you would be handling material by hand and it can get pretty heavy, basically its up to you to know what type of welding you want to get into, and if you feel that it would be right for you in a physical sense. hope that helps with your question, good luck.
You'll probably need a formal internship or apprenticeship. Especially in this economy, there's no shortage of experienced workers.
you may want to do a search on that (google). That may give u the help u need. Good luck!
get an arc welder that has at least 200 amps dc
a name brand such as lincoln miller etc
practice with the 6013
switch to 7018 for higher strength
mig welds are strong but brittle they will break without warning if overloaded
and yes i know a lot of shops use the mig on everything
but if they see what i see all of the time they wouldn,t
arc welds will usually start cracking before they fail
on the lighter metals you are talking about the mig would be ok or if you plan to do any aluminum welding
but if you want to go to heavier metal later the arc welder is better
most of my welding is done on 3/4 inch or thicker metal
i will use my mig if it is nonstructural
if you think what i say about a mig is not true try fillet welds on 1/4 inch plate then bend them