|
List Of Metalworking Occupations
Metalworking occupations include: The oldest of the metalworking occupations * Smith (a.k.a. metalsmith), such as blacksmith or silversmith * Jeweler * Founder The machining trades * Production machinist, which may involve various related machining occupations that often overlap: ** Manual machine tool operator ** CNC programmer is the person who takes the drawings made by engineers and draftsperson and creates a CNC program to cut the part ** CNC setup hand, the person who sets up the machine and its tooling before the operator takes over ** CNC operator: the person who feeds stock to the machine, changes cutting inserts, checks quality, cleans and lubricates the machine, etc. * Tool and die maker and related machining occupations: ** Moldmaker ** Patternmaker ** Modelmaker The fabricating and erecting trades * Steel erector, also known as an ironworker * Welder Lincoln Electric (1994). ''The Procedure Handbook of Arc Welding''. Cleveland: Lincoln Electric. . * Bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smith (metalwork)
A metalsmith or simply smith is a craftsperson fashioning useful items (for example, tools, kitchenware, tableware, jewelry, armor and weapons) out of various metals. Smithing is one of the oldest metalworking occupations. Shaping metal with a hammer (forging) is the archetypical component of smithing. Often the hammering is done while the metal is hot, having been heated in a forge. Smithing can also involve the other aspects of metalworking, such as refining metals from their ores (traditionally done by smelting), casting it into shapes ( founding), and filing to shape and size. The prevalence of metalworking in the culture of recent centuries has led '' Smith'' and its equivalents in various languages to be a common occupational surname (German Schmidt or Schmied, Portuguese Ferreiro, Ferreira, French Lefèvre, Spanish Herrero, Italian Fabbri, Ferrari, Ferrero, Ukrainian Koval etc.). As a suffix, ''-smith'' connotes the meaning of a specialized craftsperson—for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pipefitter
A pipefitter or steamfitter is a tradesman who installs, assembles, fabricates, maintains, and repairs mechanical piping systems. Pipefitters usually begin as helpers or apprentices. Journeyman pipefitters deal with industrial/commercial/marine piping and heating/cooling systems. Typical industrial process pipe is under high pressure, which requires metals such as carbon steel, stainless steel, and many different alloy metals fused together through precise cutting, threading, grooving, bending, and welding. A plumber concentrates on lower pressure piping systems for sewage and potable tap water in the industrial, commercial, institutional, or residential atmosphere. Utility piping typically consists of copper, PVC, CPVC, polyethylene, and galvanized pipe, which is typically glued, soldered, or threaded. Other types of piping systems include steam, ventilation, hydraulics, chemicals, fuel, and oil. In Canada, pipefitting is classified as a compulsory trade, and carries a v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polishing
Polishing is the process of creating a smooth and shiny surface by rubbing it or by applying a chemical treatment, leaving a clean surface with a significant specular reflection (still limited by the index of refraction of the material according to the Fresnel equations). In some materials (such as metals, glasses, black or transparent stones), polishing is also able to reduce diffuse reflection to minimal values. When an unpolished surface is magnified thousands of times, it usually looks like a succession of mountains and valleys. By repeated abrasion, those "mountains" are worn down until they are flat or just small "hills". The process of polishing with abrasives starts with a coarse grain size and gradually proceeds to the finer ones to efficiently flatten the surface imperfections and to obtain optimal results. Mechanical properties The strength of polished products can be higher than their unpolished counterparts owing to the removal of stress concentrations pres ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Band Saw
A bandsaw (also written band saw) is a power saw with a long, sharp blade consisting of a continuous band of toothed metal stretched between two or more wheels to cut material. They are used principally in woodworking, metalworking, and lumbering, but may cut a variety of materials. Advantages include uniform cutting action as a result of an evenly distributed tooth load, and the ability to cut irregular or curved shapes like a jigsaw (tool), jigsaw.. The minimum radius of a curve is determined by the width of the band and its kerf. Most bandsaws have two wheels rotating in the same plane, one of which is powered, although some may have three or four to distribute the load. The blade itself can come in a variety of sizes and tooth pitches (teeth per inch, or TPI), which enables the machine to be highly versatile and able to cut a wide variety of materials including wood, metal and plastic. Band saw is recommended for use in cutting metal as it produces much less toxic fumes an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automation
Automation describes a wide range of technologies that reduce human intervention in processes, mainly by predetermining decision criteria, subprocess relationships, and related actions, as well as embodying those predeterminations in machines. Automation has been achieved by various means including Mechanical system, mechanical, hydraulic, pneumatic, electrical, electronic devices, and computers, usually in combination. Complicated systems, such as modern Factory, factories, airplanes, and ships typically use combinations of all of these techniques. The benefit of automation includes labor savings, reducing waste, savings in electricity costs, savings in material costs, and improvements to quality, accuracy, and precision. Automation includes the use of various equipment and control systems such as machinery, processes in factories, boilers, and heat-treating ovens, switching on telephone networks, steering, Stabilizer (ship), stabilization of ships, aircraft and other applic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oiler (occupation)
An oiler (also known as a "greaser") is a worker whose main job is Lubrication, to oil machinery. In previous eras there were oiler positions in various industries, including maritime work (navy, naval and Ship transport, commercial), Rail transport, railroading, steelmaking, and mining. Today most such positions have been eliminated through technological change; lubrication tends to require less human intervention, so that workers seldom have oiling as a principal duty. In the days of ubiquitous plain bearings, oiling was often a job description in and of itself. Today, shipping is the economic segment that most thoroughly retains the notion of the oiler as a separate position. On a Merchant vessel, merchant ship, an oiler is an unlicensed rate of the engineering department. The position is of the junior rate in the engine room of a ship. The oiler is senior only to a Wiper (occupation), wiper. Once a sufficient amount of sea time is acquired, the Oiler can apply to take a seri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laborer
A laborer ( or labourer) is a person who works in manual labor typed within the construction industry. There is a generic factory laborer which is defined separately as a factory worker. Laborers are in a working class of wage-earners in which their only possession of significant material value is their labor. Industries employing laborers include building things such as roads, road paving, buildings, bridges, tunnels, pipelines civil and industrial, and railway tracks. Laborers work with blasting tools, hand tools, power tools, air tools, and small heavy equipment, and act as assistants to tradesmen as well such as operators or cement masons. The 1st century BC engineer Vitruvius writes that a good crew of laborers is just as valuable as any other aspect of construction. Other than the addition of pneumatics, laborer practices have changed little. With the introduction of field technologies, the laborers have been quick to adapt to the use of this technology as being ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Damascening
Damascening is the art of inlaying different metals into one another—typically, gold or silver into a darkly oxidized steel background—to produce intricate patterns similar to niello. The English term comes from a perceived resemblance to the rich tapestry patterns of damask silk. The term is also used to describe the use of inlaid copper interconnects in integrated circuits. As its name suggests, damascene gets its name from Damascus, Syria and the ancient artisans that created and exported this craft. Background The technique, while also being used on firearms, has a long history in Japan, where it was used to decorate katana fittings, particularly tsuba. Known as zougan (象嵌) in Japanese, it has developed its own subset of terms to describe the particular patterns, although "shippou-zougan" is an enamelling technique which most Westerners would consider closer to champlevé. Damascened-inlay jewelry, especially of Japanese origin, is sometimes referred to as shakudo f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pewterer
Pewter () is a malleable metal alloy consisting of tin (85–99%), antimony (approximately 5–10%), copper (2%), bismuth, and sometimes silver. In the past, it was an alloy of tin and lead, but most modern pewter, in order to prevent lead poisoning, is not made with lead. Pewter has a low melting point, around , depending on the exact mixture of metals. The word ''pewter'' is possibly a variation of "spelter", a term for zinc alloys (originally a colloquial name for zinc). History Pewter was first used around the beginning of the Bronze Age in the Near East. The earliest known piece of pewter was found in an Egyptian tomb, , but it is unlikely that this was the first use of the material. Pewter was used for decorative metal items and tableware in ancient times by the Egyptians and later the Romans, and came into extensive use in Europe from the Middle Ages [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Furniture
Furniture refers to objects intended to support various human activities such as seating (e.g., Stool (seat), stools, chairs, and sofas), eating (table (furniture), tables), storing items, working, and sleeping (e.g., beds and hammocks). Furniture is also used to hold objects at a convenient height for work (as horizontal surfaces above the ground, such as tables and desks), or to store things (e.g., cupboards, Shelf (storage), shelves, and drawers). Furniture can be a product of design and can be considered a form of decorative art. In addition to furniture's functional role, it can serve a symbolic or Religion, religious purpose. It can be made from a vast multitude of materials, including metal, plastic, and wood. Furniture can be made using a variety of woodworking joints which often reflects the local culture. People have been using natural objects, such as tree stumps, rocks and moss, as furniture since the beginning of human civilization and continues today in some househol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Farrier
A farrier is a specialist in equine hoof care, including the trimming and balancing of horses' hooves and the placing of shoes on their hooves, if necessary. A farrier combines some blacksmith's skills (fabricating, adapting, and adjusting metal shoes) with some veterinarian's skills (knowledge of the anatomy and physiology of the lower limb) to care for horses' feet. Traditionally an occupation for men, in a number of countries women have now become farriers. History While the practice of putting protective hoof coverings on horses dates back to the first century, evidence suggests that the practice of nailing iron shoes into a horse's hoof is a much later invention. One of the first archaeological discoveries of an iron horseshoe was found in the tomb of Merovingian king Childeric I, who reigned from 458 to 481 or 482. The discovery was made by Adrien Quinquin in 1653, and the findings were written about by Jean-Jacques Chifflet in 1655. Chifflet wrote that the iro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marquetry
Marquetry (also spelled as marqueterie; from the French ''marqueter'', to variegate) is the art and craft of applying pieces of wood veneer, veneer to a structure to form decorative patterns or designs. The technique may be applied to case furniture or even seat furniture, to decorative small objects with smooth, veneerable surfaces or to freestanding pictorial panels appreciated in their own right. Marquetry differs from the more ancient craft of inlay, or intarsia, in which a solid body of one material is cut out to receive sections of another to form the surface pattern. The word derives from a Middle French word meaning "inlaid work". Materials The veneers used are primarily woods, but may include bone, ivory, turtle-shell (conventionally called "Tortoiseshell material, tortoiseshell"), mother-of-pearl, pewter, brass or fine metals. Marquetry using colored Straw marquetry, straw was a specialty of some European spa resorts from the end of the 18th century. Many exotic wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
