Wire sculpture

Wire sculpture is the creation of sculpture or jewelry (sometimes called wire wrap jewelry) out of wire. The use of metal wire in jewelry dates back to the 2nd Dynasty in Egypt and to the Bronze and Iron Ages in Europe. In the 20th century, the works of Alexander Calder, Ruth Asawa, and other modern practitioners developed the medium of wire sculpture as an art form.
Alexander Calder.
Alexander Calder (1898–1976), an American sculptor, greatly developed the use of wire as a medium for sculpture with his kinetic and movement-based "Cirque Calder", as well as pieces such as "Two Acrobats", "Romulus and Remus", and "Hercules and Lion".
In 1926, after a stint spent making toys at the request of a Serbian toy merchant in Paris, Calder began creating his "Cirque Calder", a miniature, movable circus that uses movable wire models of various circus performers, like sword eaters and lion tamers. After this, Calder created complete pieces only using wire and in 1927 had a show of wire sculptures at the Weyhe Gallery in New York City. In 1930, he had a solo show of wire sculptures in Paris, at Galerie Billiet.
Calder’s wire sculptures of this period tended to be portraits, caricatures, and stylized representations of people and animals. While originally believing the medium of wire sculpture to be merely clever and amusing, as his work developed, he began to state that wire sculpture had an important place in the history of art and remarked on the great possibilities within the medium.“These new studies in wire, however, did not remain the simple, modest little things I had done in New York. They are still simple, more simple than before, and therein lie the great possibilities which I have only recently come to feel for the wire medium...
There is one thing, in particular, which connects them with history. One of the futuristic painters' canons, as propounded by Modigliani, was that objects should not be lost to view but should be shown through the others by making the latter transparent. The wire sculpture accomplishes this in a most decided manner!"
Ruth Asawa.
Ruth Asawa came to prominence when her wire sculptures appeared at both the Whitney Museum of American Art and the 1955 São Paulo Art Biennial. Asawa learned to use commonplace materials from Josef Albers, her teacher at Black Mountain College, and began experimenting with wire using a variety of techniques.
In the 1950s, Asawa experimented with crocheted wire sculptures of abstract forms that appear as three dimensional line drawings. She learned the basic technique while in Toluca, Mexico, where villagers used a similar technique to make baskets from galvanized wire.
 “I was interested in it because of the economy of a line, making something in space, enclosing it without blocking it out. It’s still transparent. I realized that if I was going to make these forms, which interlock and interweave, it can only be done with a line because a line can go anywhere.” 
In 1962, Asawa began experimenting with tied wire sculptures of images rooted in nature, geometry, and abstraction.
Contemporary practitioners.
Contemporary wire artists include:
Jewelry.
Because the needed tools are simple, wrapped wire jewelry can be learned and performed in home studios by hobby artists. Some of the tools used include pliers, pin vises, file, wire cutters, and mandrels.
The wire used may be of a variety of decorative metals in different cross-sections. Wire sculpture jewelry may have beads or gemstones integrated into the design.
Metals used.
For most people who start out working with wire, it is not cost-effective to jump straight to precious metals such as silver or gold. Therefore, less expensive craft wires made from softer materials such as brass, copper, aluminum, or gold fill can be used. The artist typically first gains experience exploring form while learning the feel of the wire. There are many ways wire can be handled and wrapped. Progression can be made to the more expensive metals such as 925 sterling silver and 14k gold-filled wire.
14k gold-filled wire is a tube of 14k gold that has a length of jewelers brass running through the middle. It is not like gold plated wire as there is approx 100 times more gold in gold filled than there is on the plated wire. With gold-filled wire that is designated 14/20 it means that a minimum 20% of the entire wire is 14k gold. As with solid gold the gold-filled wire can come in at least yellow and rose colors enabling the range of jewelry that can be made to be expansive.