Direction: Answer the question
1. Explain/Simplify in your own word the process of on weld in flat position Answer in 30 words
2. Explain on your own word the difference between hot pass and filler.
3. In the absence of E6011 and E6010 electrode is possible to use E7018 electrode for root pass? Defend your answer in 40 words
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Answers
Answer:
1. The easiest type perform is the flat position, which also sometimes called the down hand position . It involves welding on the top side of the point .In this position the molten metal is drawn down word into the joint .The result is faster and easier weld .
2. Hot pass :-
The weld the passes the immediately fallows the stringer (root) pass .A root breed and hot pass generally the minimum amount of weld that must be done before the crane / side boom e.t.c. can be realized and the weld can left completely to to cool and the filled and capped at the later time/ date .
Filling pass:-
It is the amount of weld bead necessary to fill the weld joint ... keyhole - refers to the shape of the hole that is formed while welding an open root joint , particularly with an AWS 6010 SMAW electrode .It allows for good penetration and to in the complete weld .
3.The 7018 is the backbone of structural welding .This rod runs diffrence from 6010and 6011 rods -it is much smoother and easier .More of a"drag" rod , the 7018 is also referred to as a low hydrogen , or low high , rose in the field . The flux contains almost no hydrogen , and the rod produces smooth, strong welds that are very ductile.
For these reason , these rods are used extensively in structural welding .