Page 83 - CITS - Welder - Trade Practical
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WELDER - CITS



           EXERCISE 13: Single “V” butt joint on MS plate 10mm
                                    thick in overhead position (SMAW)


            Objectives

           At the end of this exercise you shall be able to
           •   select electrode, current, polarity and arc length
           •   preset and tack the beveled plate with root gap
           •   place the joint in overhead position
           •   deposit root run, 2nd run, 3rd run
           •   clean the weldment and inspect for surface defects.

















































            Job Sequence


           •   Prepare the plates to size as per drawing.
           •   Clean the beveled plate.

           •   Use spacers, maintain 2.5 mm root gap, tack one end and adjust the gap and tack the other end.
           •   Preset the plates 3° to take care of distortion as done in Ex. No. E32/3. 16.
              Note: Ensure safety apparels are worn.

           •   Arrange the work piece in overhead position.



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