Fabrication Process Joining two or more elements to make a single part is termed as fabrication...
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Fabrication ProcessJoining two or more elements to make
a single part is termed as fabrication process.
Fairly large numbers of industrial components are made by fabrication process .
Examples: Aircraft ,Shipbuilding, Bridges, Sheet metal parts etc.
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Classification Of Fabrication Process
Mechanical joining by means of bolts, screws and rivets.
Welding, Brazing and Soldering.
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Welding is a joining process that uses heat, pressure, and/or chemicals to fuse two materials together permanently. Welding covers a temp range of 1500º F - 3000º F (800ºC - 1635ºC).
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Types Of Welding
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Plastic Welding The pieces are heated to a plastic state and
then forced together by external pressure.
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Fusion Welding
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Gas welding ( oxy acetylene, air –acetylene ,oxy -hydrogen)
Resistance welding (Butt, Projection, percussion ,spot , seam)
Thermit weldingSolid state welding ( friction, diffusion ,
ultrasonic, explosive)Advance welding (electro beam ,laser beam)
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Classification of ARC
WeLding
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WELDING
ARC WELDING
Carbon arc weldingMetal arc weldingGas metal arc welding(MIG)Gas tungsten welding (TIG)Submerged arc weldingPlasma arc weldingElectro slag welding
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WELDING PARAMETERS
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Carbon Arc WeldingIn carbon arc welding heat is produced with an arc between a carbon electrode and work, normally no shielding gas is used.
Carbon arc welding process can be used as an all position welding process.
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Carbon Arc Welding
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MIG WeldingIn mig welding process a consumable wire of 0.8 to 2.4 mm dia is wounded in spool form is feed at a preset speed through a welding torch where it is provided the electrical connection and the shelding gas.
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MIG WELDING
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TIG WELDINGTig welding is a process in which the source of heat is an arc formed between a non consumable tungsten electrode and the work piece, shielding gas argon is supplied continuously during welding
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TIG WELDING
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TIG WELDING
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Submerged Arc WeldingSubmerged arc welding is the process in which continuous copper coated spooled wire is used with loose granulated powder ahead of the arc , so to protect the molten pool from atmospheric gases.
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Submerged Arc Welding
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Carbon-Electrodes
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Welding Troch & Cable
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TIG Welding Machine
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TIG Welding Torch
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Tungsten Electrodes
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Gas Regulator
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TIG WELDING
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