FIELD: welded flash-free tubes. SUBSTANCE: method comprises steps of shaping tube blank, welding its edges, reducing welded tube blank at deforming seam zone by critical deformation value, locally heating seam zone up to recrystallization temperature, removing flash. EFFECT: enhanced efficiency, increased strength of tool and enhanced quality of tubes due to lowered adhesion of metal onto tool.
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Authors
Dates
1997-12-27—Published
1996-04-02—Filed