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The exhaustive list of topics in Welding Engineering in which we provide Help with Homework Assignment and Help with Project is as follows:

  • Welding Engineering:
    • Evolution of welding.
    • Welding processes.
    • Heat sources and shielding methods.
    • Welding arc.
    • Voltage distribution along the arc.
    • Thermionic and non-thermionic cathodes.
    • Theories of cathode and anode mechanism.
    • Arc characteristics and its relationship with power source.
    • Arc efficiency
    • Heat generation.
    • Effect of type of shielding gas on arc.
    • Isotherms of arcs.
    • Conventional welding power sources.
    • Constructional features.
    • Static and dynamic characteristics.
    • Duty cycle.
    • Influence of inductance on arc and power source characteristics.
    • Internal and external regulation.
    • Specific power source requirements.
    • Special welding power sources.
    • Consumable electrode welding processes.
    • Manual metal arc (MMA) welding.
    • Gas metal arc welding.
    • Pulsed MIG welding.
    • Submerged arc welding.
    • Significance of flux-metal combination.
  • Electroslag welding:
    • Heat generation.
    • Principle.
    • Gas tungsten arc welding.
    • Selection of polarity.
    • Plasma arc welding.
    • Transferred and nontransferred plasma arc welding.
    • Selection of gases.
    • Welding parameters.
    • Keyhole technique.
    • Effect of welding parameter on heat distribution.
    • Calculation of peak temperatures.
    • Thermal cycles.
    • Cooling rate and solidification.
    • Residual stresses and their distribution in welds.
    • Influence of residual stresses in static and dynamic loading.
    • Distortion.
    •  Engineering properties of steels.
    • Type of welds and weld joints.
  • Description of welds:
    • Terminology.
    • Definitions and weld symbols.
    • Edge preparation.
    • Sizing of welds in structure.
    • Design for Static loading.
    • Weld Calculations in lap.
    • Butt and fillet welds.
    • Design for fatigue loading.
    • Introduction to Fatigue.
    • Nature of the fatigue process.
    • Fatigue strength.
    • Factors affecting fatigue life.
    • Improvement methods for fatigue strength.
    • Reliability analysis and safety factors applied to fatigue design.
    • Chemical tests.
    • Metallographic tests.
    • Hardness tests.
    • Mechanical test for groove and fillet welds-full section.
    • Reduced section and all-weld- metal tensile tests.
    • Root, face and side bend tests.
    • Fillet weld break tests.
    • Creep & fatigue testing.
    • Non-Destructive Testing of Weldments.
    • Visual inspection.
    • Dye-penetrant inspection.
    • Magnetic particle inspection.
    • Ultrasonic inspection-principle of ultrasonic testing.
    • Radiographic inspection –principle of radiography.
    • X-ray tubes.
    • Gamma-ray sources.
    • Defect discernibility.
    • Eddy current inspection.
  • Leak tests:
    • N.D.T. Standard procedure for specification and qualification of welding procedure.
    • WPS.
    • PQR.
    • WPQ.
    • Solidification of weld metal.
    • Heat affected zone (HAZ).
    • Factors affecting properties of HAZ.
    • Gas-metal.
    • Slag-metal and solid state reactions in welding and their influence on soundness of weld joint.
    • Lamellar tearing and hydrogen damage.
    • Weldability.
    • Definition.
    • Factor affecting the weldability of steel Carbon equivalent.
    • Weldablity of steel.
    • Cast iron and aluminium alloys of commercial importance.
    • Failure analysis of welded joints.