Topics: Arc welding, Welding, Gas tungsten arc welding Pages: 3 (621 words) Published: April 27, 2013
Homework research assignment

With the aid of a neat diagram explain what electric arc welding is. The dictionary defines electric arc welding as “A technique in which metals are welded using heat generated by an electric arc.” It is a type of welding that uses a welding power supply to create and electric arc between an electrode (the dictionary defines electrode as “A conductor through which electricity enters or leaves an object, substance, or region.”) and the base material to melt the metals at the meeting point.

What equipment and consumables are needed in a basic electric arc welding setup? The equipment and consumables needed for a basic electric arc welding setup are: * Welding machine
* Electrode
* Cables
* Clamps
* Metal to be welded
Safety equipment
* Heavy leather gloves
* Long sleeve jacket
* Welding goggles and helmet

With the use of diagrams, explain a basic welding technique (like a butt or a fillet weld)

The fillet weld is the most common weld.it is used 80% of the time in welded construction, whereas the butt weld is only used 15% of the time. The welding technique of a fillet weld is used to join two flat pieces of steel at a 90 degree angle. A fillet weld requires a greater heat setting in comparison to the butt weld. The welding technique of a butt weld is used to join parts which are nearly parallel but do not overlap. It is made by gradually heating up the two weld ends with a metal plate and then joining them under a specific pressure.

What types of metals can be arc welded?
The types of metals that can be welded are determined by what method of arc welding used. The spectrum includes iron, nickel, bronze, brass, steel, aluminium, stainless steel and titanium. You can weld most commonly used industrial metals using one or more of the arc welding methods. What is the safety risks involved with electric arc welding? Heat and sparks: Because of many common welding procedures involve an...

Bibliography: http://en.wikipedia.org/wiki/Arc_welding
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