do you know something about welding?anything?!?

Question

i have a paper on welding. and i don't know anything about it...!(not really!i know how it's done but i never learned the words for what i did!) i don't know the professional words in the biz, shall we say...! does anyone know anything about it? a website also would be really helpful.
there were two kinds we did, for one we used electricity and the other one we used gasses(O2 and C2H4 )
what are they called? what was the whole hammering thing about?(for electricity! i think there were some electrodes that we used and they had a layer or something...! God i'm hopeless!:(( )
(i'm in university,engineering, and we had a course. not in english,so now that i'm surffing the web trying to find something for that course, i don't know any of the words in english!so i need help asap!)

I know the words in my own language...! i don't know them in english.and that's how i need them.for example what is the thing that you do at the beginning when you want to attach 2 metals together? for a few seconds you melt the electrode,right? what is that called? i think i need a list of what you do and the names...!

Answer 1

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.

I 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.

TIG 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.

Stick 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.

I 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.

Answer 2

Welding is a fabrication process that joins materials, usually metals or thermoplastics, by causing coalescence. This is often done by melting the workpieces and adding a filler material to form a pool of molten material (the weld puddle) that cools to become a strong joint, but sometimes pressure is used in conjunction with heat, or by itself, to produce the weld. This is in contrast with soldering and brazing, which involve melting a lower-melting-point material between the workpieces to form a bond between them, without melting the workpieces.


Arc weldingMany different energy sources can be used for welding, including a gas flame, an electric arc, a laser, an electron beam, friction, and ultrasound. While often an industrial process, welding can be done in many different environments, including open air, underwater and in space. Regardless of location, however, welding remains dangerous, and precautions must be taken to avoid burns, electric shock, poisonous fumes, and overexposure to ultraviolet light.

Until the end of the 19th century, the only welding process was forge welding, which blacksmiths had used for centuries to join metals by heating and pounding them. Arc welding and oxyfuel welding were among the first processes to develop late in the century, and resistance welding followed soon after. Welding technology advanced quickly during the early 20th century as World War I and World War II drove the demand for reliable and inexpensive joining methods. Following the wars, several modern welding techniques were developed, including manual methods like shielded metal arc welding, now one of the most popular welding methods, as well as semi-automatic and automatic processes such as gas metal arc welding, submerged arc welding and flux-cored arc welding. Developments continued with the invention of laser beam welding and electron beam welding in the latter half of the century. Today, the science continues to advance. Robot welding is becoming more commonplace in industrial settings, and researchers continue to develop new welding methods and gain greater understanding of weld quality and properties.

GOOD LUCK¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡

Answer 3

I weld with a MIG welder. It operates on electricity, copper lines, and 02, and Acetylene gas. You must also use a magnet, and jumper cable to operate machine.

Answer 4

well,,,I can help you....I work in Company manufacture Welding machines....Also I am engineer.....

But which language Can I help for it? You said I dont know any words in English???

Contact me,,,and lets talk about it......

Answer 5

I could help you... i did welding during my workshop practice...