April 23rd, 2009 
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Forge welding is said to be the oldest welding technique ever used by early blacksmiths, dating back to the Iron Age when ancient Egyptians and people from Eastern Mediterranean began to refine the craft of welding iron metals together.
Also known as “fire welding,” this method attempts to fasten together two or more metal components through a process of heating, hammering and striking. It is also the “simplest” solid-phase bonding method that utilizes heat and pressure to create the weld.
Being able to join a host of similar and dissimilar materials, forge welding is very versatile. Although this technology has been around for centuries, it was not until the first half of the second millennium A.D when forge welding was formalized upon the publication of Vannoccio Biringuccio’s book entitled “De la pirotechnia” in 1540. This book contains descriptions of early forge welding techniques. However, due to the advent of industrialization which gave birth to more sophisticated welding methods, this technique has been replaced.
There are two ways of doing forge welding. One way is through solid-state diffusion which is applied to bond two similar metal components. This results in a weld that contains only the welded metals with no bridging materials or fillers. This application requires tedious surface preparation because too much oxidation of the faying surfaces would lessen the joint strength significantly. Another method of forge welding is by the formation of a lower melting temperature eutectic. This is being done between dissimilar materials, allowing you to make weld that is stronger than individual metals.
One of the most popular applications of forge welding is the manufacturing of pattern-welded blades. In this process, steels are repetitively drawn out, folded back and welded upon itself. Another lesser known application is the production of shotgun barrels. In this method, metal wire is coiled onto a mandrel before forging it into a barrel.
For a forge welding job to be successful, 50-90% of the melting temperature is recommended. Take note that steel welds at a much lower temperature than iron. Utmost care must be taken to prevent overheating the metals.
Watch the video related to welding
expected and completely different out come with a 240sx with a welded rear. had fun with it though
Help answer the question about welding
What type of respirator filter should you use when welding galvanized steel?I have a North full face respirator, but I'm not sure which is the right filter to use when welding galvanized steel. I think it might be the organic vapor filter, but I'm not sure.
About Author
Andrei Smith writes for Midwest Metal Products, one of industry’s leaders in providing wire-formed, sheet metal fabricated and tubular metal products such as fan guards. Learn more information about wire forming.
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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)
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
You'll probably need a formal internship or apprenticeship. Especially in this economy, there's no shortage of experienced workers.
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.
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!
Ramshack-ian!
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.
Crazy. . . It’s awesome that you got it all on video though. I’d love to see the welder guys deny that in court.
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.
good job fera!
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
you may want to do a search on that (google). That may give u the help u need. Good luck!