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Wire is generally made by pulling a rod through progressively smaller dies until it reaches the correct diameter. This work hardens the alloy and can make it too hard and stiff to use. Most wire is annealed after drawing to soften it and make it more usable. Annealing is done at a temperature of around 70 - 80% of the melting temperature on a scale that starts at absolute zero (-273.15 degrees Celsius or 0 Kelvin). Annealing allows the atoms to rearrange themselves into a lower energy state. For a work hardened material the dislocations can sort themselves out and even disappear as new, much more perfect crystals arise. Copper work hardens so much that it is normally annealed one or more times between drawing steps. For electrical wire it is generally drawn to final size after the last annealing - this gives a smooth, shiny surface and a wire that has some stiffness, but not too much.
http://www.evergreengardenworks.com/copperwi2.htm
What else can I help you with?
Is copper wire the same as thugsten wire?
No. Copper wire is made of the element copper. Tungsten wire is made of the element tungsten. Copper wire is made to conduct electricity. Tungsten wire is made for the filament in light bulbs as tungsten does not melt under even very high temperatures.
What is copper wire a compound or an element?
Copper wire is made of the element copper. Copper is a pure substance, not a compound, because it is made up of only one type of atom.
What is telephone wire made of?
Copper
Can copper wire be made into a magnet?
The copper wire has to be wound around a iron core to get the full effect of electromagnetism.
What is a tipi made out of in the beothuk?
copper wire
What is fuse wire made?
copper and tin
Why does die cast copper parts fetch a higher scrap price than bare wire?
castings made from copper alloy are a higher grade of copper than the copper in wire. Also, the insulation on the copper wire needs to be removed,
What is the chemical name of copper wire?
Copper. The wire is made of elemntal copper not a chemical compound. (Note the copper used may sometimes be alloyed with another metal or occasionally be a solid solution of small amounts of oxide in the pure metal. This improves the durability and handling characteristics of the wire.)
Is copper wire mixture or substance?
Copper wire is a substance because it is made up of a single type of material, which is copper. It is not a mixture of different substances.
Is copper wire a pure substance heterogeneous mixture or homogeneous?
copper is an ELEMENT therefore it is not a heterogeneous OR homogeneous mixture.
Are paperclips made out of copper wire?
Yes, it is possible.
What are some electronic parts made out of?
Copper wire
