Ensaios de extrusão de barras entre matrizes de perfil sigmoidal

Preliminarily, simple and plane-strain compression tests were made with pure and commercial lead in order to determine their isotropy and work-hardening conditions. Strip-extrusion experiments were afterwards made with a sigmoidal die profile for the maximum reduction condition, and with a straight die profile with the sarne reduction and axial lenght. The resul ts were compare d with those predi cted by the sigmoidal profile theory and comparisons were made between the two types of profiles. The influences on the process of work-hardening, friction and granulometry were also verified.

Grantor dc:publisher

Universidade Federal do Rio de Janeiro

Year dc:date.issued

1973

Author dc:creator

• Danna, Francisco Luiz

Advisor dc:contributor.advisor

• De La Penha, Guilherme

• Extrusão
• Mecânica dos sólidos

Statement dc:rights

• Acesso Aberto

Language dc:language

por

Handle dc:identifier.uri

http://hdl.handle.net/11422/3473

OAI identifier oai:identifier

oai:pantheon.ufrj.br:11422/3473