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.