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Robot welding is the use of mechanized programmable tools , which completely automate a welding process by both performing the weld and handling the part. Processes such as gas metal arc welding , while often automated, are not necessarily equivalent to robot welding, since a human operator sometimes prepares the materials to be welded.
Autogenous welding is a form of welding in which the filler material is either supplied by melting the base material or is of identical composition. [1] The weld may be formed entirely by melting parts of the base metal, and no additional filler rod is used. There is some variation in the use of this term.
Arc welding power supplies can deliver either direct (DC) or alternating (AC) current to the work, while consumable or non-consumable electrodes are used. The welding area is usually protected by some type of shielding gas (e.g. an inert gas), vapor, or slag. Arc welding processes may be manual, semi-automatic, or fully automated.
A successful orbital weld is 100% automatic and repeatable as long as the operator monitors variables and performs periodic inspections of the weld seam for complete penetration of the weld. Noticing that a variable has changed during the welding process is a necessary skill for orbital welding technicians and operators that can be easily missed.
A submerged arc welder used for training Close-up view of the control panel A schematic of submerged arc welding Pieces of slag from submerged arc welding exhibiting glassy surface due to silica (SiO 2). Submerged arc welding (SAW) is a common arc welding process. The first SAW patent was taken out in 1935.
Quote from the SAW article: "Underwater welding refers to a number of distinct welding processes that are performed underwater and should not be confused with the SAW process." Cheers —Preceding unsigned comment added by 211.31.36.94 ( talk ) 09:49, 24 December 2008 (UTC) [ reply ]
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