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Application filed by Виробничо-Науковий Центр "Трубосталь", Производственно-Научный Центр "Трубосталь"filedCriticalВиробничо-Науковий Центр "Трубосталь"
Priority to UA95062790ApriorityCriticalpatent/UA26284C2/en
Publication of UA26284C2publicationCriticalpatent/UA26284C2/en
The invention relates to working of metals by pressure. Before lengthwise bending a pipe an eccentric transverse wall thickness variation is set within the limits of 10 to 30 %, the polishing is performed on internal and external surfaces, and bending is carried out in such a manner that the maximum thickness of the wall of pipe is placed in the area of emergence of maximum tensile stresses.
UA95062790A1995-06-141995-06-14
METHOD OF BOWING PIPES
UA26284C2
(en)