Full Penetration and Full Fusion
Full Penetration and Full Fusion
(OP)
Can anyone tell me difference between full penetration welding and full fusion welding?
Thanks in advance
Thanks in advance
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RE: Full Penetration and Full Fusion
Full fusion means the filler metal (or in the case of no filler metal the joining metal) is completely bonded to the parent metal. Ex. soldering is not full fusion.
RE: Full Penetration and Full Fusion
If so, I could say that full penetration weld is always full fusion. Is that right?
Kyong
RE: Full Penetration and Full Fusion
RE: Full Penetration and Full Fusion
Fusion in B 31.3 is defined as 'the melting together of filler metal and base metal, or of base material only which results in coalescence. If you mean full fusion to be interpretated as complete fusion then complete fusion is defined in section IX as "fusion which has occurred over entire base material surfaces intended for welding, and between ALL layers and passes.
i also take that when you say full penetration you mean full weld joint penetration, joint penetration is defined in ASME section IX as "The distance the weld metal extends from the weld face INTO a joint, exclusive of weld reinforcement"
hope this helps
RE: Full Penetration and Full Fusion
Thank you very much.
Now I understood.
kyong