Answer: REWELD

AnswerCrossword Clue
REWELDFix by fusing, as metal
REWELDFuse again
REWELDBond anew
REWELDJoin again, in a way
REWELDFix, as a pipe joint
REWELDFix up the joint?
REWELDFix over, as a pipe joint
reweldto weld again