Welding Process

Improved Essays
1.2 Types of welding
There are so many types of welding process to weld metal or non-metals are given below.
Welding is generally two types: (i) Conventional (ii) Nonconventional
1.2.1. Conventional welding
Arc welding
(i) Shielded metal arc welding (SMAW), (ii) Gas metal arc welding (GMAW), (iii) Flux cored arc welding (FCAW), (iv)Gas tungsten arc welding (GTAW) or tungsten inert gas (TIG) welding (v) Submerged arc welding (SAW), (vi) Plasma Arc Welding, (vii) Carbon arc welding, (viii) Atomic hydrogen welding, (ix)Arc spot welding, (x)Flux cored arc welding, (xi)Stud arc welding
Gas welding
(i) Oxy-acetylene welding
(ii) Air acetylene welding
(iii) Oxy-hydrogen welding
(iv) Pressure
(v) gas welding
Resistance welding
(i) Spot welding (ii) Seam welding (iii)
…show more content…
TIG can be used to weld most steels including stainless steel, nickel alloys such as Monel and Inconel, titanium, aluminum, magnesium, copper, brass, bronze, and even gold. GTAW can also weld dissimilar metals to one another such as copper to brass and stainless to mild steel.
1.3.1.2 Concentrated Arc
The concentrated nature of the GTAW arc permits pin point control of heat input to the work-piece resulting in a narrow heat-affected zone. A high concentration of heat at point is an advantage when welding metals with high heat conductivity such as aluminum and copper. A narrow heat-affected zone is an advantage because this is where the base metal has undergone a change due to the superheating of the arc and fast cooling rate. The heat-affected zone is where the welded joint is weakest and is the area along the edge of a properly made weld that would be expected to break under a destructive test.
1.3.1.3 No

Related Documents

  • Superior Essays

    Copper Gta Welding

    • 1640 Words
    • 7 Pages

    Schematic of the physical model for the susceptibility of hot cracking during copper GTA welding. (I). Free crystalline region The actual line of S-L is lower compared with its corresponding theoretical line because of the influence of under cooling and low-melting eutectic. The α-Cu is crystallized from the liquids when the welding pool cools down the actual line of S-L. In this region, the size of α-Cu is smaller and the quantity of α-Cu is fewer.…

    • 1640 Words
    • 7 Pages
    Superior Essays
  • Superior Essays

    Ionic Bonding Essay

    • 909 Words
    • 4 Pages

    They are used as mainly because of their properties; metals are strong, ductile, have high melting points and are excellent conductors of electricity. Other properties of metals are given below: • Can be made stronger by alloys and heat treatment. • Easily machined. • Most of them are heavy. • Susceptible to corrosion.…

    • 909 Words
    • 4 Pages
    Superior Essays
  • Improved Essays

    Titanium Alloy Essay

    • 841 Words
    • 4 Pages

    3. Beta titanium alloys. Commercially pure titanium alloys Alpha-beta titanium alloys Beta titanium alloy Medium Strength Strength ranges from Medium to High. Very high strength Corrosion Resistant Corrosion Resistant Corrosion Resistant Good creep strength Good creep strength Non heat treatable Heat treatable Heat treatable Not weldable Weldable Excellent mechanical properties at cryogenic temperature Good forming properties Readily Formable Example: Ti-6Al-4V(Grade 5) Grade 19, Grade 21, AMS 4983. Source:…

    • 841 Words
    • 4 Pages
    Improved Essays
  • Superior Essays

    Magnesium Alloy Essay

    • 1122 Words
    • 5 Pages

    The melting point ranges from 1422K to 1722k. Cast iron has good fluidity, cast-ability, good machine-ability, excellent resistance to deformation. Cast Iron have become a good engineering material with applications in machines, automotive industry parts such as cylinder heads, cylinder blocks, and gearbox cases. It has resistance to destruction and weakening by oxidation…

    • 1122 Words
    • 5 Pages
    Superior Essays
  • Improved Essays

    It can withstand fatigue and wear, and can be strengthened and hardened to an accurately controllable degree. It can be easily casted, corrosion resistant and reproduce fine detail. Moreover, it has high electrical conductivity at high temperatures. To introduce Beryllium into metals, Beryllium alloys of magnesium-aluminum, aluminum, nickel, copper, iron or cobalt are always used (Hornbostel, 1991). According to Harper (2001), Beryllium oxide, with a melting point of 2585 °C and specific gravity of 3.025, is a cubic close-packed and has a zinc blende structure.…

    • 780 Words
    • 4 Pages
    Improved Essays
  • Superior Essays

    Metal Fabrication Essay

    • 1780 Words
    • 7 Pages

    Melting metal into a liquid is an ideal choice for structures that require complex geometries. The raw materials used are typically molten metal, but concrete, epoxies, and clay are also used. Other common metals used in the casting process are aluminum, iron, steel, stainless steel, gold, silver, copper, and…

    • 1780 Words
    • 7 Pages
    Superior Essays
  • Improved Essays

    Iron oxide + Carbon→ Iron + Carbon dioxide 2Fe2O3 + 3C→ 4Fe + 3CO2 Iron oxide is reduced to iron and the carbon is oxidised to carbon dioxide. The blast furnace is so hot that carbon monoxide can also be used to reduce the iron oxide instead of…

    • 1011 Words
    • 5 Pages
    Improved Essays
  • Great Essays

    Analysis Of Magnet Wire

    • 1317 Words
    • 6 Pages

    It is used in the construction of transformers, inductors, motors, speakers, hard disk head actuators, electromagnets, and other applications which desire tight coils of wire. Magnet wire is preferred in the condition where the electrical setup requires high performance of power thus high number of coils of wires, but essentially to be fitted into a compacted space such as motor generators and transformers. Figure 2: Magnet wire 3.0 Material Analysis on Magnet Wire 3.1 Wire Interior Material Properties: Commonly, the magnet wire uses copper as the main material, while occasionally aluminium. Physically, copper has a yellowish red appearance and when polished develops a bright metallic lustre. Copper possesses a face-centred-cubic (FCC) crystal structure, with Atomic Packing Factor (APF) of 0.74.…

    • 1317 Words
    • 6 Pages
    Great Essays
  • Improved Essays

    Manufacturing Process Manufacturing process of brass involved combining the appropriate raw materials into a molten metal, which is allowed to solidify. After this process solidified metal are then changed through a series of operations to produce the desired brass stock. Actual manufacturing process depends on the desired shape and properties of the brass stock as well as on the machines and practices used in different brass plants. A very typical manufacture process used to produce brass sheet and strip. Characteristics The metal has both good heat and electrical conductivity and it is wear and spark…

    • 633 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Hydrogen gas is produced when iron combine with dilute HCl and dilute H2SO4. Fe + 2HCl → FeCl2 + H2↑ Fe + H2SO4→ FeSO4 + H2↑ 22. With concentrated H2SO4, ferric sulphate is formed. 2Fe + 6H2SO4 → Fe2(SO4)3 + 3SO2 + 6H2O 23. With dilute HNO3, ferrous nitrate is formed.…

    • 1001 Words
    • 5 Pages
    Improved Essays