March 16th, 2008 
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Welding has been around for centuries, though not in the forms most commonly used today. One of the first welding processes ever used was known as forge welding. Forge welding attempts to join two metals through a process of heating, and then pounding and striking. It’s what blacksmiths did. But since then, there have been quite a few advancements in the welding world. With these new methods and techniques, welding has left the confines of industrial settings and can now be done practically anywhere – even underwater or in outer space!
As you can guess from the history of welding, the ability to join two or more pieces of metal together in a strong bond has been fundamental in our advancements in all areas of life, from housing to transportation; from manufacturing to repairs. Understanding welding basics can come in handy at work, but it will just as often come in handy around the house, in the workshop or on the farm. Because of this, welding is a skill that almost anyone can benefit from, male or female, young or old.
Why Weld?
If you own any equipment or machinery that is metal, welding will certainly serve as a useful skill. Some typical goals of a welding job include:
Fixing stress cracks
Reinforcing weak joints, and
Cutting/shaping new parts and adapters from raw plating.
For chores like these, many welders rely on a process known as arc welding. Arc welding is a method where during the welding process, an electrical current jumps through an air gap (between a positively charged electrode and a negatively charged steel plate) and produces an enormous amount of heat. This heat is produced at the end of a welding rod, and when it does, metal can be melted. Well, it’s a little more complicated than that, but the concept is the same.
Perhaps the most common and economical welding method used today is AC (alternating current) arc welding. You can locate a simple AC welder just about anywhere, such as your local farm store or home improvement center. This welding process is ideal for most of your simple, routine welding jobs. Therefore, AC arc welding is ideal for those of you just starting out.
Minimize Your Risk
While arc welding isn’t incredibly complicated, there are a few risks and hazards that you should be aware of:
1. Exposure to radiation
2. Flying sparks (in the form of globs of molten metal)
3. Electric Shock
4. Fumes
5. Damage to your eyes, and
6. Burns
However, by wearing protective clothing and specialized welding helmets and other gear, you can greatly reduce the inherent risks of welding. Here are a few other tips to help keep you safe while arc welding:
Make sure to work on a dry floor. Wear thick rubber shoes and dry leather welding gloves.
Be sure to use insulated electrode holders.
Check to make sure that your equipment is all properly grounded.
Keep your work area properly ventilated to avoid inhaling any potentially toxic fumes.
Be on the look out for flying bits of melted metal.
Most importantly, be aware of any other people who are around you. If they aren’t wearing the proper gear, then keep them away from your project.
This will get you started welding safely – one of the most important things when learning a new craft.
Watch the video related to welding
Principles, procedures, and techniques. What happens at the MIG arc? Identifies weld equipment and setup before welding. www.MillerWelds.com
Help answer the question about welding
Does a welding table get hot when its being welded on?I need to design a welding table for shops class but i don't know how hot the table gets when its being welded on. Also will a part of the table that's not close to the area that's being welded on, will it get hot? Like the legs or something.
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nice weld
the metal isnt dirty enough to affect it. I certified with metal that looked like that
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
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.
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.
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
making a triangle is a good technique
I would like to see that weld cut open and sent to a lab for testing. HE DID NOT EVEN CLEAN THE METAL. Dirty welds have poor penetrations and are set up to fail. People, if you are too lazy to clean the metal, don’t weld.
Have you guys seen “You Can’t Weld This!”? It’s pretty funny… The guys over at WeldingMart com had it made! Do a youtube search for it
You'll probably need a formal internship or apprenticeship. Especially in this economy, there's no shortage of experienced workers.
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!
you may want to do a search on that (google). That may give u the help u need. Good luck!
Hahaha I work at a Sawmill If the welders where I work cleaned all the metal before they welded they wouldnt be welding very much! I see them blast the metal quikly with a torch and then weld away!
18v with 260 wire… I think you should use less wire, more like 190-210. But that’s just me. Weld would look flatter. Have a nice d@y! =)
Dont hold….!!!!
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.
very nice hand still
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.