do you know something about welding?anything?!?
832417
I am not a welder but I know how to,,,,,kinda. I do know that when you weld with a torch, it is called Brazing. There are a few different types of electrical welding too. MIG, TIG, and Stick. \n\nI hope someone else will help me on this, but MIG is when you have a gun that the electrode (wire off of a reel) comes out when you press the trigger, as well as turns on the electric to apply to the electrode so it sparks when you touch the metal that you want to weld that has been grounded. MIG welders often use Argon as a shielding gas while welding. It helps the weld form better.\n\nTIG welding, I don't know much about. I think TIG welding uses a different gun that shoots an electrical arc to the piece(s) you want to weld, and you melt the two pieces with the arc while adding fill metal with a metal rod.\n\nStick welding is done when you have a welder that looks like there are jumper cables sticking out. You put one on the pieces to weld, and hold a stick electrode in the other. You turn on the welder and press the electrode to the metal. The electrodes are often covered with flux. Flux is to help your welds form properly to be strong. \n\nI think that you hammer the welds when done to see if they had alot of holes in them, and too see if they were formed properly. Hammering will flake the impurities off of the top so you can see the weld.
169774
I use a torch with MAPP guess whenever I solder copper pipes.  For welding iron, I use a MIG or arc welder.
159930
u will need access 2 an arc welder. find the metal u want(get a lot of heavy duty metal that will b easy 2 cary) \n\nstep1 cut the metal u will use 4 the top piece 2 the size u want with a gas welding torch\n\nstep2 cut the metal u will use 4 the 3 legs to the same size as each other but wutever height u want.\n\nstep3 weld the leg pieces together with a flat piece of metal to make a "T" (u will have 3 "T"s)\n\nstep4 weld the "T"s upside-down 2 the top bar.\n\nstep5 add a kinda thin (probly 1/8 inch) piece of metal 2 the top of the top bar (make t 1/8 inch pice about eight inches longer than the bar)\n\nstep6 weld the pieces 2gether\n\nstep7 bend the ends downward a lil bit\n\nstep8 now go use it!
875624
I went for welding tech but my actual degree is in Quality Management...my major focus is on fabrication and erection of structural steel...I have an associates plus AWS CWI, ASNT Level II in (5) Nondestructive Testing disciplines...\n\nMy recommendation is that you focus more towards the inspection end of things...the trades are great for someone coming up but you will already have a degree and can start at a higher level than most will ever attain...\n\nLook towards the American Welding Society not only for future job ideas but possible scholarships to help offset some of your costs for college...\n\nIf you truly want the trades then Iron workers, Boilermakers, or Pipe Fitters for Union work
615624
Im not sure what you need for tools in Welding Apprenticeship, from what I have found you need steel toed work boots, gloves and a welding helmet. I am also looking for apprenticeship in Canada in Welding! Best of luck!
1060369
Arc welding electrodes are identified using the A.W.S, (American Welding Society) numbering system and are made in sizes from 1/16 to 5/16 . An example would be a welding rod identified as an 1/8" E6011 electrode. \nThe electrode is 1/8" in diameter \n\nThe "E" stands for arc welding electrode. \n\nNext will be either a 4 or 5 digit number stamped on the electrode. The first two numbers of a 4 digit number and the first 3 digits of a 5 digit number indicate the minimum tensile strength (in thousands of pounds per square inch) of the weld that the rod will produce, stress relieved. Examples would be as follows: \n\nE60xx would have a tensile strength of 60,000 psi E110XX would be 110,000 psi \n\nThe next to last digit indicates the position the electrode can be used in. \n\nEXX1X is for use in all positions \nEXX2X is for use in flat and horizontal positions \nEXX3X is for flat welding\nThe last two digits together, indicate the type of coating on the electrode and the welding current the electrode can be used with. Such as DC straight, (DC -) DC reverse (DC+) or A.C.\n\n\nWelding Electrodes are wires or rods of metals or their alloys which are mainly used in welding. The primary purpose of using an electrode in welding is to maintain the arc needed for welding as well as supply the filler material at the point where the welding is done. It actually serves as a conductor for the current required to form the welding arc. The electrode may be consumed during the welding operation or may be just acting as a conductor. The metal electrode is mostly used as a cathode in direct current welding, whereas in alternating current welding the electrode is neither a cathode nor an anode.\n\n\n\nWelding Process \n\n\nA welding arc is created between the two metal pieces to be welded, using an electric power supply which can be either DC or AC. The power supply is so high that the arc created by it can melt the metal parts which form a part of the arc. If the electrode is the filler type, the arc created between the electrode and the base metal melts the electrode. The molten electrode serves at the filler material, enduring additional bondage between the welded parts. Additional filler materials and flux are used along with the electrodes to provide enhanced properties of the weld. Sometimes, even a special environment of a shielding gas is also provided to enhance the welding process.\n\n\n\nTypes of Welding Electrodes \n\n\nFactors which influence the classification of  welding electrodes are\n\n\n        Consumed electrode\n\n        Non-consumed electrode
142707
first you go over to the band-saw and cut a clean line through the CD along the crack. Then you take it to the belt-sander and sand that thing down till you have a perfect, clean, straight edge. Now you want someone to weld the two halves together. Someone in your neighbourhood likely can "plastic weld" When  the welding is done you just take the rough bits off back at the belt-sander and finnish it off with some 800 grit sandpaper and BLAMO. good as new (!)\n\nPS what is so important tha you cant live without it but didn't care to look after?
896821
Pardon my stupidity in Engineering...but there is magnesium in engines?? Huh...I learned something new I guess....
241867
If you can work on and fix them, look for a broken one that someone wants to get rid of.  How about 2-3 broken welders that can be cannibalized to feed each other parts.  Maybe it just seems broken and all it needs is an adjustment or to have a lead re-connected.  I've managed to get some free or near free things that way.  Just depends on how much legwork you are willing to do.  I'm sure you don't think that its just gonna fall into your lap... good luck getting your welder.
618928
Virtually all steels are quite weldable.  Those alloys with high percentages of certain metals like chromium must be welded in an inert atmosphere to prevent oxidation of the alloying metals.
33498
Are you talking about steel? If so, each one has his own set of possible problems. Most of it depends on chemistry and what the end use is going to be. Take a look at ASTM and API specifications. You might find your answer there. A metallurgist can answer your question.
308446
http://www.lasers.org.uk/laser_welding/briefhistory.htm\nhttp://www.google.com/search?sourceid=navclient&ie=UTF-8&rls=HPID,HPID:2005-17,HPID:en&q=history+of+lasers
93151
Remove panes adjacent to welds...Use cutting torch to cut thru welds...when window opens, re-install panes..
126443
Underwater welding is an important tool for underwater fabrication works. In 1946, special waterproof electrodes were developed in Holland by ‘Van der Willingen’. In recent years the number of offshore structures including oil drilling rigs, pipelines, platforms are being installed significantly. Some of these structures will experience failures of its elements during normal usage and during unpredicted occurrences like storms, collisions. Any repair method will require the use of underwater welding.
733397
You can go to a scrap metal yard around any commercial site that does fabrication. That's what we did when we were in school. Got tons of good stuff.
396543
If you are young enough (under 24) then take a look into job corps -- its free training and you can recieve a certificate of completion. I think they only have MIG but not TIG. Not sure about aluminum. Check out http://jobcorps.doleta.gov/
1176756
Time, temparature, and pressure are required to weld metals or polymers together.  Ultrasonic vibration is used as the heat source. Combined with pressure and a little time, it causes the molecules to integrate together resulting in a welded part.