Abstract A novel method of cold drawing process high spiral angle tube made 304 stainless steel is proposed. Forming principles are calculated. New dies designed and manufactured. Numerical simulation corresponding experiments carried out. quality defects discussed. Various factors affecting metal flow during studied in detail. Finite element model established. The variation load presented. dis...

This paper presents a process condition diagram (PCD) that not only identifies conditions under which materials fracture during bar drawing, but also infers the presence or absence of microdefects such as microvoids and microcracks in drawn material accumulative damage changes owing to die semi-angle reduction ratio. The values were calculated by finite element (FE) analysis. critical determine...

Hirschi argued that delinquent youth tend to form relatively "cold and brittle" relationships with peers, depicting these youths as deficient in their attachments to others. The current analysis explores connections between delinquency and the character of adolescent romantic ties, drawing primarily on the first wave of the Toledo Adolescent Relationships Study, and focusing on 957 teens with d...