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Metallurgy is a domain of materials science and engineering that studies the physical and chemical behavior of metallic elements, their inter-metallic compounds, and their mixtures, which are called alloys. Metallurgy encompasses both the science and the technology of metals. That is, the way in which science is applied to the production of metals, and the engineering of metal components used in products for both consumers and manufacturers. Metallurgy is distinct from the craft of metalworking. Metalworking relies on metallurgy in a similar manner to how medicine relies on medical science for technical advancement. A specialist practitioner of metallurgy is known as a Metallurgist.
In metalworking and jewellery making, casting is a process in which a liquid metal is somehow delivered into a mold that contains a negative impression of the intended shape. The metal is poured into the mold through a hollow channel called a sprue. The metal and mold are then cooled, and the metal part is extracted. Casting is most often used for making complex shapes that would be difficult or uneconomical to make by other methods.
Die casting is a metal casting process that is characterized by forcing molten metal under high pressure into a mould cavity. The mould cavity is created using two hardened tool steel dies which have been machined into shape and work similarly to an injection mould during the process. Most die castings are made from non-ferrous metals, specifically zinc, copper, aluminium, magnesium, lead, pewter, and tin-based alloys. Depending on the type of metal being cast, a hot- or cold-chamber machine is used.
In scientific visualization and computer graphics, volume rendering is a set of techniques used to display a 2D projection of a 3D discretely sampled data set, typically a 3D scalar field.
In printing and typography, hot metal typesetting is a technology for typesetting text in letterpress printing. This method injects molten type metal into a mold that has the shape of one or more glyphs. The resulting sorts or slugs are later used to press ink onto paper. Normally the typecasting machine would be controlled by a keyboard or by a paper tape.
Sand casting, also known as sand molded casting, is a metal casting process characterized by using sand as the mold material. The term "sand casting" can also refer to an object produced via the sand casting process. Sand castings are produced in specialized factories called foundries. Over 60% of all metal castings are produced via sand casting process.
A casting vote is a vote that someone may exercise to resolve a deadlock. A casting vote is typically by the presiding officer of a council, legislative body, committee, etc., and may only be exercised to break a deadlock.
In the performing arts industry such as theatre, film, or television, a casting is a pre-production process for selecting a certain type of actor, dancer, singer, or extra for a particular role or part in a script, screenplay, or teleplay. This process is typically utilized for a motion picture, television program, documentary, music video, play, or television advertisement, etc. This involvement in a dramatic production, advertisement, and or industrial video is intended for an audience, or studio audience.
Casting Crowns is a contemporary Christian and Christian rock band started in 1999 by youth pastor Mark Hall, who serves as the band's lead vocalist, as part of a youth group at First Baptist Church in Downtown Daytona Beach, Florida. They later moved to Stockbridge, Georgia, and more members joined. Some members of the band currently work as ministers for Eagle's Landing First Baptist Church in McDonough, Georgia. The band has won a Grammy and a Dove Award.
The casting couch is a euphemism for the practice of soliciting sexual favors from a job applicant in exchange for employment in the entertainment industry, primarily acting roles. The practice is illegal in the United States. Predominantly male casting directors and film producers use the casting couch to extract sex from aspiring actors in Hollywood, Bollywood, Broadway, and other segments of the industry. The term casting couch originally referred to physical couches in the casting office, but is now a metonym for the phenomenon as a whole.
The Casting Society of America (CSA), founded in Los Angeles, California, in 1982, is a professional society of about 700 casting directors for film, television and theatre in Australia, Canada, India, France, Germany, Ireland, Spain, Italy, the United Kingdom and the United States. The society is not to be confused with an industry union. The Teamsters represent most of the major casting directors in Hollywood. Members use the post-nominal letters "CSA".
A foundry is a factory that produces metal castings. Metals are cast into shapes by melting them into a liquid, pouring the metal into a mold, and removing the mold material after the metal has solidified as it cools. The most common metals processed are aluminium and cast iron. However, other metals, such as bronze, brass, steel, magnesium, and zinc, are also used to produce castings in foundries. In this process, parts of desired shapes and sizes can be formed.
Backstage is an entertainment-industry brand aimed at people working in film and the performing arts, with a special focus on casting, job opportunities, and career advice.
An audition is a sample performance by an actor, singer, musician, dancer or other performer. It typically involves the performer displaying their talent through a previously memorized and rehearsed solo piece or by performing a work or piece given to the performer at the audition or shortly before. In some cases, such as with a model or acrobat, the individual may be asked to demonstrate a range of professional skills. Actors may be asked to present a monologue. Singers will perform a song in a popular music context or an aria in a Classical context. A dancer will present a routine in a specific style, such as ballet, tap dance or hip-hop, or show his or her ability to quickly learn a choreographed dance piece.
Casting is a manufacturing process in which a liquid material is usually poured into a mold, which contains a hollow cavity of the desired shape, and then allowed to solidify. The solidified part is also known as a casting, which is ejected or broken out of the mold to complete the process. Casting materials are usually metals or various time setting materials that cure after mixing two or more components together; examples are epoxy, concrete, plaster and clay. Casting is most often used for making complex shapes that would be otherwise difficult or uneconomical to make by other methods. Heavy equipment like machine tool beds, ships' propellers, etc. can be cast easily in the required size, rather than fabricating by joining several small pieces.
Spey casting is a casting technique used in fly fishing. Spey casting can be accomplished with either a normal length fly rod, or a rod referred to as a double-handed fly rod, often called a Spey rod. Spey rods can also be used for standard overhead casting.
The 1998 Islington Council election took place on 7 May 1998 to elect members of Islington London Borough Council in London, England. The whole council was up for election and the Labour Party lost overall control of the council to no overall control.
Section 40 of the Constitution of Australia provides that questions in the House of Representatives shall be determined by majority vote, excluding that of the Speaker.
The archaeology of Igbo-Ukwu revealed bronze artifacts dated to the 9th century A.D. which were initially discovered by Isiah Anozie in 1939 while digging a well in his compound in Igbo-Ukwu, an Igbo town in Anambra State, Nigeria. As a result of these finds, three archaeological sites were excavated in 1959 and 1964 by Thurstan Shaw which revealed more than 700 high quality artifacts of copper, bronze and iron, as well as about 165000 glass, carnelian and stone beads, pottery, textiles and ivory. They are the oldest bronze artifacts known in West Africa and were manufactured centuries before the emergence of other known bronze producing centers such as those of Ife and Benin. The bronzes include numerous ritual vessels, pendants, crowns, breastplates, staff ornaments, swords, and fly-whisk handles.
Germany participated in the Eurovision Song Contest 2017 with the song "Perfect Life", performed by Levina and written by Lindsey Ray, Lindy Robbins and Dave Bassett. The German entry was selected through the national final Unser Song 2017, organised by the German broadcaster ARD in collaboration with Norddeutscher Rundfunk (NDR).
References
- ↑ Grassi, J. "The Ablation Casting Process" (PDF). Retrieved 6 December 2012.
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