Avaliação do fator de deformação redundante em trefilação de barras de cobre eletrolítico

• Ano de defesa: 1988
• Autor(a) principal: Haroldo Beria Campos
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Minas Gerais; UFMG
• Palavras-chave em Português: Engenharia Metalúrgica e de Minas; Engenharia metalúrgica; Deformações (Mecânica)
• Link de acesso: http://hdl.handle.net/1843/BUOS-8DGEP2

Due to the absence of an analysis of the dispersion of the values of the redundant deformation factor (ø) and the redundant work factor (ø), this study aims to develop it. This analysis was done using the techniques of superposition of curves x and voltage drawing. Electrolytic Copper was the material used in order to verify the models proposed by Atkins and Caddell (ø = C1 + C and o = i + m) and Johnson and Rowe (ø = 0.88 + 0.195 ), where + ( / r) (1 + (1-r) ½) 2 oem where are the terms of Hollomon equation ( ø m) for the collected material. The dispersion was always below 5% in both techniques. The equation proposed by Johnson and Rowe was seen in a range of 1.0 10.0 while the equations proposed by Atkins Cadell and unverified.