Page 83 - CITS - Welder - Trade Practical

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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