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Application filed by В.Н. МацневfiledCriticalВ.Н. Мацнев
Priority to SU2858372/27ApriorityCriticalpatent/SU828505A1/en
Application grantedgrantedCritical
Publication of SU828505A1publicationCriticalpatent/SU828505A1/en
FIELD: plastic material working. SUBSTANCE: method comprises steps of forming joined portion of groove and flat surface of panel in press; before forming step corrugating sheet blank with pitch and profile of its section corresponding to predetermined parameters of parts; straightening ends of corrugations for making inclined wrinkles along periphery in zone of intermediate portion between corrugations. EFFECT: possibility of making panels with grooves having depth more than their radius.
SU2858372/27A1979-12-251979-12-25Method of making panel with rectilinear grooves from sheet blank
SU828505A1
(en)