1) Discuss the following given types of welding. a) Projection welding b) Percussion welding. Specify the fundamentals of electrical resistance welding? Describe the process of seam welding with diagrams. describe the Electron Beam Gun construction and the process variables influencing weld quality with a neat sketch. Describe the process characteristics of the laser beam and Process parameters influencing the welding and cutting.
2) describe the procedures of the liquid penetrant testing Method. describe how eddy current testing is performed in order to evaluate the flaws in welded structure? Specify its merits and demerits. describe the various types of cupola? For melting steel which furnace is generally used? describe why the taper is avoided in the pattern?
3) Describe what is sand reclamation? Specify any two techniques that are used for the inspection of casting? describe few defects in the sand casting. Describe what is meant by the mercast process? prepare differences between centrifugal and semi centrifugal casting. Consider the factors that are need to be considered for casting design? Classify the material handling equipments for foundry ?