Punch pin with core, the surface layer of conical surface of which contains successively located grooves. The width of this groove is equal to the width of protrusion and depends on the speed of motion of punch and natural frequency of oscillation of billet.
申请公布号
UA29624(U)
申请公布日期
2008.01.25
申请号
UA20070007371U
申请日期
2007.07.02
申请人
KREMENCHUK M. OSTROHRADSKYI STATE POLYTECHNICAL UNIVERSITY
发明人
DRAHOBETSKYI VOLODYMYR VIACHESLAVOVYCH;TROTSKO OLEH VALERIIOVYCH;PYROHOV DMYTRO LEONIDOVYCH;MARTSYNIUK OLEH BOHDANOVYCH
