Page 163 - CITS - Welder - Trade Practical

WELDER - CITS

EXERCISE 35 : Pipe welding 45° angle joint on M.S. pipe

ø 50mm and 3mm wall thickness (SMAW)

Objectives

At the end of this exercise you shall be able to
• prepare the development of pipe for 45° branch joint
• cut and prepare the pipes as per dimensions
• tack and complete the welding by manipulating the torch and filler rod.

Procedure for development of 45° branch pipe: Refer Fig 1. Draw a centre line AB.

Mark the points C, D, E and F taking the radius and the length of the given pipe with the centre line AB as
reference line.
On the line “CD” locate the position of the 45° branch pipe. This will be “G”.

Draw a 45° angle at the point “G”.
Choose a suitable height and mark the height of the branch pipe (GI) in 45° line from point G.

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CITS : C G & M - Welder - Exercise 35