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WELDING

WELDING. Fabrication Process. Joining 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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WELDING

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  1. WELDING

  2. Fabrication Process Joining 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.

  3. Classification Of Fabrication Process • Mechanical joining by means of bolts, screws and rivets. • Welding, Brazing and Soldering.

  4. Definition for welding 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).

  5. Types Of Welding

  6. Plastic Welding The pieces are heated to a plastic state and then forced together by external pressure.

  7. Fusion Welding

  8. Gas welding ( oxy acetylene, air –acetylene ,oxy -hydrogen) • Resistance welding (Butt, Projection, percussion ,spot , seam) • Thermit welding • Solid state welding ( friction, diffusion , ultrasonic, explosive) • Advance welding (electro beam ,laser beam)

  9. Classification of ARC WeLding

  10. WELDING PARAMETERS

  11. Carbon Arc Welding • In 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.

  12. Carbon Arc Welding

  13. MIG Welding • In 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.

  14. MIG WELDING

  15. TIG WELDING • Tig 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

  16. TIG WELDING

  17. TIG WELDING

  18. Submerged Arc Welding • Submerged 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.

  19. Submerged Arc Welding

  20. Carbon-Electrodes

  21. Welding Troch & Cable

  22. TIG Welding Machine

  23. TIG Welding Torch

  24. Tungsten Electrodes

  25. Gas Regulator

  26. TIG WELDING

  27. THANK YOU

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