Page 209 - CITS - Fitter Trade Pactical - Volume - 2

FITTER - CITS

The beginner in gas welding must practice the following steps correctly.
Fusing of a metal using a proper gas flame.
Holding the blowpipe in a correct position.
Fusion run in a straight line using the leftward technique.

Cleaning and setting the job-piece
Clean the job-piece surface with a steel-wire brush and emery paper.
Set the job-piece on a fire-brick welding table, raising the left edge app. 15mm. (Fig 1)

Fig 1

Holding the blowpipe and flame in correct position for proper fusion.

Hold the blowpipe and flame in such a position that the axis of the joint is parallel to the operator’s body (Fig 2)

Fig 2

The angle of the nozzle with welding line 60°-70° (Fig.3) the fuse metal forms a small puddle on the molten pool
on the job surface at the right edge (Fig 3) give a slight circular motion to the blowpipe.

Fig 3

Making fusion run without a rod
Move the blow pipe in a leftward direction as you get local fusion.

Keep the molten pool on the punch line. (Fig 4)

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CITS : C G & M - Fitter - Exercise 54