Page 220 - CITS - Fitter Trade Pactical - Volume - 2

FITTER - CITS

Fig 3

Fig 4

• forming a keyhole near the weld crater of the tack weld to ensure complete penetration. (Fig 5)
• maintaining travel speed similar to the speed used for straight beading. Clean the root run thoroughly and
observe penetration.

Fig 5

Ensure no slag particles are adhering on the root run.

The crater is to be properly filled in each run.
Deposition of covering layers
Deposit 1st covering layer i.e., the second run using a ø 4.00 mm medium coated MS electrode and 160 amps
welding current. A weaving motion for the electrode has to be given to ensure enough metal is deposited in the
groove and both edges of the plates are fused.

205

CITS : C G & M - Fitter - Exercise 54