August 30th, 2008 
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The modern use of laser welding is rooted in the scientific discovery of the first laser in the 1960s, when the effects of an amplified light beam forced by radiation emission were put into practice. The working principle behind laser welding actually lies in the emission generated at the meeting point between light and metal, with the latter emitting force radiation. Presently, laser welding is expanding in various domains of activity since it brings enormous advantages with it such as a very deep weld penetration and minimal levels of heat inputs which cannot be achieved with traditional welding technologies.
The energy transfer is the one that makes the difference between classical welding and laser welding in various domains of activity. We can talk about two elements that characterize the efficiency of laser welding; first of all the heat ratio required by a specific workpiece and then the melting power in the fusion area. Furthermore, laser welding does not depend on AC or DC outputs and it is not limited by the conductive property of a specific material. The contact and fusion are possible with almost any material without even creating x-rays or requiring the formation of a vacuum.
The working principle in laser welding is the energy of light, hence the results are almost impeccable with a welded joint that has highly superior resistant properties. The penetration of a metal piece is directly influenced by its physical properties like conductivity, thickness or density; when a concentrated beam of energy is applied to a workpiece, the melting is immediate before heat may affect the operational area as such. The force of the energy beam in a focal point is given by the careful choice of special lenses. Correct mirror and lens applications in laser welding may guarantee the concentration of the light beam on spots smaller that 0.005.
The main industries to profit from the use of laser welding are aerospace building, military and defense, medical research, instrumentation, electronics and so on. Laser welding actually improved the execution of many delicate works that were almost impossible to achieve before, and here we refer to the creation of very deep or narrow welds and the absence of any distortions in the process. Small or very thin items could not be joint very well before the development of laser welding, not to mention that the resistance of the welds is incredible as compared to those resulted from classical welding procedures.
Watch the video related to welding
3400 Mile road trip to pick up Pistol Pete’s new Pro-2 from U-Weld in Minnesota and shots from the offroad expo in Pomona. … Pistol Pete U-weld off road racing u-weld corr desert
Help answer the question about welding
Can foundation Piles be welded, if yes what is the welding procedure to be followed?During pile casting lenght of the pile was short of design lenght and it is proposed to increase length by welding. Is this allowed as per BS Standard. If yes what is the correct welding procedure to be followed.
About Author
Muna wa Wanjiru Has Been Researching and Reporting on Welding for Years. For More Information on Laser Welding, Visit His Site at LASER WELDING
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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
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.
Ramshack-ian!
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.
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!
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
good job fera!
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.
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 may want to do a search on that (google). That may give u the help u need. Good luck!
You'll probably need a formal internship or apprenticeship. Especially in this economy, there's no shortage of experienced workers.