Page 108 - CITS - Welder - Trade Practical

WELDER - CITS

Skill Sequence

Fillet ‘T’ weld in MS sheet 2mm in vertical position

Objectives: At the end of this exercise you shall be able to
• prepare and weld fillet ‘T’ weld in MS sheet 2mm in vertical position.

Keep one of the sheets vertically at 90° to the bottom sheet (Fig 1) and tack weld using neutral flame at the ends
of the joint in proper alignment and at the centre.

Fig 1

Maintain the angle of the blowpipe at 75-80° and filler rod at 40° respectively to the line of weld in vertical upward
direction. (Fig 2) Also maintain a blowpipe angle of 45° between the sheet surfaces. (Fig 3)
Control the molten pool steadily and weld the fillet joint on the root by melting both the surfaces to be joined
equally.
Dip the end of the filler rod continuously in the molten pool and proceed welding upward.
The above-mentioned procedure will help to fuse the root and both the sheet surfaces of the joint uniformly as well
as control sagging of molten metal deposited into the joint.
Ensure uniform speed of torch travel against the gravitation pull of the hand due to the weight of blowpipe, hose
etc.

91

CITS : C G & M - Welder - Exercise 19