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projection welder

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  • Spot welding — is a type of resistance welding used to weld various sheet metal products. Typically the sheets are in the 0.5 3.0 mm thickness range. The process uses two shaped copper alloy electrodes to concentrate welding current into a small spot and to… …   Wikipedia

  • Human eye — Infobox Anatomy Name = Eye Caption = Schematic diagram of the human eye. The human eye is similar to most mammalian eyes.Dynamic rangeThe retina has a static contrast ratio of around 100:1 (about 6 1/2 stops). As soon as the eye moves (saccades)… …   Wikipedia

  • Sunspot — A sunspot is a region on the Sun s surface (photosphere) that is marked by intense magnetic activity, which inhibits convection, forming areas of reduced surface temperature. They can be visible from Earth without the aid of a telescope. Although …   Wikipedia

  • Welding — is a fabrication process that joins materials, usually metals or thermoplastics, by causing coalescence. This is often done by melting the workpieces and adding a filler material to form a pool of molten material (the weld puddle ) that cools to… …   Wikipedia

  • Table saw — A table saw, equipped for cutting large pieces of sheet stock. Other names Sawbench Classification Power tool Manufacturer Bosch, Makita …   Wikipedia

  • Jonathan James Cramer — (1975 ) is a storyteller, musician, arc welder, and author.He was born in Nashua, New Hampshire, in the United States. He graduated from Hollis/Brookline High School, Hollis, New Hampshire, in 1993, and from the University of New Hampshire in… …   Wikipedia

  • Industrial radiography — is the use of ionizing radiation to view objects in a way that cannot be seen otherwise. It is not to be confused with the use of ionizing radiation to change or modify objects; radiography s purpose is strictly viewing. Industrial radiography… …   Wikipedia

  • Doctor Steel — This article is about the musician and internet personality, Dr. Steel. For other articles relating to Doctor Steel , see Dr. Steel (disambiguation). Doctor Steel Doctor Steel with his robot band Background information …   Wikipedia

  • Electric resistance welding — (ERW) refers to a group of welding processes such as spot and seam welding that produce coalescence of faying surfaces where heat to form the weld is generated by the electical reistance of material vs the time and the force used to hold the… …   Wikipedia

  • Alexandrov Ensemble soloists — G.Y. Andryushchenko: soloist of the Ensemble, Bolshoi Theatre soloist and People s Artist of Russia, who died 12 January 2011 This is an alphabetical list of the basso profondo, bass, bass baritone and tenor soloists who have performed with the… …   Wikipedia

  • WOMAN — This article is arranged according to the following outline: the historical perspective biblical period marriage and children women in household life economic roles educational and managerial roles religious roles women outside the household… …   Encyclopedia of Judaism

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