Page 59 - CITS - Welder - Trade Practical
P. 59
WELDER - CITS
Job Sequence
• Prepare and clean the plates.
• Set the Tee joint as per drawing and tack weld (Fig 1)
• Fix the joint in horizontal position.
• If DC machine is used, connect the electrode to the negative and use short arc to control arc blow.
• To avoid distortion due to contraction preset the plates such a way that the angle of the tack welded joint is
increased to 92° to 93° on the welding side.
• Deposit the root run without weaving.
• Hold the electrode at the center of the joint and start from leftward and use proper technique to avoid excessive
metal deposition at the bottom of the plate.
• Deslag and clean the root run.
• Deposit the second and third run using stringer bead technique covering the previously laid bead partially and
the plate surface.
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CITS : C G & M - Welder - Exercise 8
