Severe plastic deformation by equal channel angular pressing: product quality and operational details

Materials Research

Anibal De Andrade Mendes Filho¹  Erika Fernanda Prados¹  Gustavo Trindade Valio¹  José Benaque Rubert¹  Vitor Luiz Sordi¹  Maurizio Ferrante¹ 

[1] ,Universidade Federal de São Carlos Departamento de Engenharia de Materiais São Carlos SP ,Brazil

关键词: ECAP;    die geometry;    die manufacture;    ECAP operation;   

DOI  :  10.1590/S1516-14392011005000045

来源: SciELO

【 摘 要 】

As a technique, Equal Channel Angular Pressing (ECAP) is simple and inexpensive. However, if die manufacture and operational details are not carefully planned and implemented, difficulties arise, which can interfere with the product characteristics and the pressing operation itself. The present paper offers guidelines on die design and manufacture, emphasizing geometry, material and heat treatment. Further, operational parameters such as lubrication, pressing temperature, deformation routes, die closure procedure and the influence of channel cross section on maximum acceptable load are described. Additionally, the effects of those variables on the product characteristics (deformation level and homogeneity) and integrity, plus process control and safety, are discussed.

【 授权许可】

CC BY   
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