- Draw plate
A draw plate is type of die consisting of a hardened steel plate with one or more holes through which wire is drawn to make it thinner. A typical plate will have twenty to thirty holes so a wide range of diameters can be drawn.
With a mandrel, a draw plate can be used to draw tubes of metal. Plates are available in many different sizes and shapes for drawing different shapes of wire, including round, square, oval, half-round and hexagonal. The plate has rows of holes drilled through it which are slightly wider at the back.
When drawing, the plate is held securely in a vise or other fixture. Annealed wire is filed at one end to give it an initial taper. The tapered end is inserted into a hole with a final diameter just smaller than its current width. Special pliers, called draw tongs are used to hold the tip of the wire and pull it through, sometimes with the aid of grease or wax as a lubricant. Small diameter wire may be drawn manually, while very thick wire may require a drawing bench with a crank. Often, a wire can be drawn three times in a row before it needs to be re-annealed. This must be done because drawing wire work-hardens it, which causes the wire to become brittle. Brittle wire that has not been annealed may snap during the drawing process.
Draw plates reduce the thickness of wire by reshaping the metal; increasing length while decreasing diameter. As such, a piece of wire will become considerably lengthened during the drawing process.
- ^ Littell, Eliakim; Littell, Robert S. (1892), The Living age, 195, Littell, Son and Co., p. 512, http://books.google.com/books?id=4xEuAAAAYAAJ&pg=PA512.
Jewellery Forms MakingPeopleProcessesTools MaterialsPrecious metal alloysMineral gemstonesAventurine · Agate · Alexandrite · Amethyst · Aquamarine · Carnelian · Citrine · Diamond · Diopside · Emerald · Garnet · Jade · Jasper · Lapis lazuli · Larimar · Malachite · Marcasite · Moonstone · Obsidian · Onyx · Opal · Peridot · Quartz · Ruby · Sapphire · Sodalite · Sunstone · Tanzanite · Tiger's eye · Topaz · Tourmaline · TurquoiseOrganic gemstones Terms Related topics: Body piercing · Fashion · Gemology · Metalworking · Wearable art
Wikimedia Foundation. 2010.
Look at other dictionaries:
draw-plate — drawˈ plate noun A plate supporting dies for drawing wire or tubing • • • Main Entry: ↑draw … Useful english dictionary
draw|plate — «DR PLAYT», noun. a plate with tapering holes through which wire is drawn to regulate its size and shape … Useful english dictionary
Draw plate — Draw plate. См. Плита вытяжки. (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) … Словарь металлургических терминов
draw plate — filjerė statusas T sritis chemija apibrėžtis Gaubtelis su skylutėmis cheminiam pluoštui formuoti. atitikmenys: angl. draw plate; sprinneret rus. фильера … Chemijos terminų aiškinamasis žodynas
draw plate — metal plate with hole used to form wire or tubing with small diameter by drawing non formed metal through the hole … English contemporary dictionary
draw plate (die) — Смотри Фильера … Энциклопедический словарь по металлургии
Draw bench — A Draw bench is a machine used to do cold work on a metal, such as changing the shape of the metal without applying heat and applying only pressure. Machine Construction It consists of a chain drive, driven by a motor and a set of gears. The… … Wikipedia
Club Atlético River Plate — For other uses, see River Plate (disambiguation). River Plate Full name Club Atlético River Plate Nickname(s) Los Millonarios (The Millionaires) El Millo (T … Wikipedia
Fast Draw — This article is about the firearms sport of Fast Draw. For information on the 1968 game show, see Fast Draw (game show). Fast Draw is a sport based on the romanticized art of the gunslingers in the American Old West, using traditional single… … Wikipedia
Club Atlético River Plate Puerto Rico — River Plate Puerto Rico Full name Club Atlético River Plate Puerto Rico Nickname(s) River Plate, River, RPPR … Wikipedia