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welding with pressure

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  • 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

  • welding — Technique for joining metallic parts, usually through the application of heat. Discovered in the 1st millennium AD during attempts to manipulate iron into useful shapes, the technique produced a strong, tough blade. Welding traditionally involved …   Universalium

  • Pressure regulator — A pressure regulator is a valve that automatically cuts off the flow of a liquid or gas at a certain pressure. Regulators are used to allow high pressure fluid supply lines or tanks to be reduced to safe and/or usable pressures for various… …   Wikipedia

  • Welding defect — A welding defect is any flaw that compromises the usefulness of the finished weldment. According to the American Society of Mechanical Engineers (ASME) welding defect causes are broken down into the following percentages: 41% poor process… …   Wikipedia

  • Pressure vessel — Vertical pressure vessels installed in a structure A pressure vessel is a closed container designed to hold gases or liquids at a pressure substantially different from the ambient pressure. The pressure differential is dangerous and many fatal… …   Wikipedia

  • welding — noun fastening two pieces of metal together by softening with heat and applying pressure • Derivationally related forms: ↑weld • Hypernyms: ↑fastening, ↑attachment • Hyponyms: ↑butt welding, ↑butt welding, ↑ …   Useful english dictionary

  • welding — the process of joining together two pieces of metal so that bonding accompanied by appreciable interatomic penetration takes place at their original boundary surfaces. The boundaries more or less disappear at the weld, and integrating crystals… …   Mechanics glossary

  • Plastic welding — is the process of welding plastic parts together. There are several techniques:Hot gas weldingThis is a plastic welding technique which is analogous to gas welding of metals, though the specific techniques are different. A specially designed heat …   Wikipedia

  • Gas metal arc welding — RMD redirects here. RMD may also refer to IRA Required Minimum Distributions. Gas metal arc welding …   Wikipedia

  • resistance welding — noun : a form of electric pressure welding in which the necessary heat is produced by a flow of current through the parts to be welded and sufficient pressure to make the weld is applied simultaneously with the flow of current compare butt… …   Useful english dictionary

  • forge welding — the welding of pieces of hot metal with pressure or blows. * * * …   Universalium

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