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Subject: Re: arc strikes as defects ?
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Date: 08/12/03 at 2:28 AM
Posted by: eachampati
E-mail: sneachampati[AT55]yahoo.com (replace [AT55] with @ to reply)
In Reply to: arc strikes as defects ? posted by william peters on 07/11/02 at 1:37 PM:
While striking the arc, welder should ensure it happens on the bevel of pipes and not on the pipe parent metal adjucent to weld. However,in practice ,while care is taken at start of welding invaribly sometimes at the time of removal of elctrode some welders do strike the diminishing arc on the parent metal as they move the hand. The defects so caused are normally not so serious and superficial and can be tested for thickness reduction by surface grinding and itching test. Is it generally acceptable? How serious really are such defects?
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