Page 190 - CITS - Fitter Trade Pactical - Volume - 2

FITTER - CITS

Skill Sequence

Ensure the setting of an outside corner joint as per drawing.

Adjust current 60- 90 Amp in AC.(Refer Table 1 of fabrication - welder Ex.No. 2.2.02)
Use a backing bar made from a piece of steel angle with its apex bevelled or radi used to accommodate the pen-
etration bead.

Hold the sheet on to the backing bar with steel strap. (Fig 1)
– correct alignment and uniformity of bead with correct penetration after cleaning the welded joint thoroughly.
– uniform ripples with equal width and height of bead (Fig.2).

Fig 1

Fig 2

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CITS : C G & M - Fitter - Exercise 52