forming rolls
111Rotary piercing — is a hot working metalworking process for forming thick walled seamless tubing. There are two types: the Mannesmann process and Stiefel process. Mannesmann process A schematic of rotary piercing. Key: 1. Roller configuration 2. The process starts …
112abrasive — abrasively, adv. abrasiveness, n. /euh bray siv, ziv/, n. 1. any material or substance used for grinding, polishing, etc., as emery, pumice, or sandpaper. adj. 2. tending to abrade; causing abrasion; abrading. 3. tending to annoy or cause ill… …
113automation — /aw teuh may sheuhn/, n. 1. the technique, method, or system of operating or controlling a process by highly automatic means, as by electronic devices, reducing human intervention to a minimum. 2. a mechanical device, operated electronically,… …
114percussion instrument — a musical instrument, as the drum, cymbal, triangle, xylophone, or piano, that is struck to produce a sound, as distinguished from string or wind instruments. [1870 75] * * * A musical instrument that is struck (or sometimes shaken or scraped) to …
115Dates of 2008 — ▪ 2009 January As we meet tonight, our economy is undergoing a period of uncertainty.… At kitchen tables across our country, there is a concern about our economic future. U.S. Pres. George W. Bush, in his final state of the union address, January …
116List of Pokémon (320–386) — Pokémon has 646 (as of Pokémon Black and White) distinctive fictional species classified as the titular Pokémon. These creatures and entities reside throughout various locations of the fictional Pokémon universe and can be caught by humans… …
117Native American civil rights — are the civil rights of Native Americans in the United States. Although indigenous to the Americas, American Indians became one of many minorities and the movement for American Indian civil rights began almost as soon as Europeans started to… …
118November 2010 — was the eleventh month of that year. It began on a Monday and ended after 30 days on a Tuesday. Portal:Current events This is an archived version of Wikipedia s Current events Portal from November 2010 …
119Vickers Wellington — infobox Aircraft name = Wellington type = bomber, anti submarine aircraft manufacturer = Vickers Armstrongs (Aircraft) Ltd. caption = Wellington B Mk. IA. The geodesic construction is evident through the perspex windows along the aircraft s side …
120Messerschmitt Bf 109 — Bf 109 Restored Messerschmitt Bf 109G 6 Role Fighter Manufacturer …
