Cross Flow During Twist Extrusion: Theory, Experiment, and Application
نویسندگان
چکیده
منابع مشابه
An Upper Bound Solution for Analysis of Twist Extrusion Process with Elliptical Die Cross-section
Twist extrusion process is a rather new route to produce highly strained materials. In this process, severe plastic deformation is applied by large shear strains. In current article, required energy for twist extrusion by use of admissible velocity field together with the upper bound technique is predicted. The proposed model is capable of considering the effect of various parameters such as di...
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The present paper deals with numerical comparison of two twist-based severe plastic deformation processes: (i) the elliptical cross-section spiral equal-channel extrusion (ECSEE) proposed recently as a novel process and (ii) the classical twist extrusion (TE). ECSEE was developed in attempt to process cylindrical work pieces and to generate more uniform strain distribution compared to classical...
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We propose an experimental method for investigating the kinematics of metal flow in twist extrusion (TE). The method is based on a theoretical model of the velocity field. The parameters of this model are determined to satisfy the observed flow-line for characteristic points of the specimen. The model incorporates two physical constraints: (1) metal flow is limited by the surface of the die; (2...
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The aim of the present study is to determine the feasibility of making a rectangular twist waveguide used to rotate electromagnetic waves. For this purpose, the process of fabricating an aluminum rectangular twist waveguide was simulated by making use of finite element method and Deform software. The optimum length and angle of the twist die for manufacturing a twist waveguide with inner cross ...
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ژورنال
عنوان ژورنال: Metallurgical and Materials Transactions A
سال: 2013
ISSN: 1073-5623,1543-1940
DOI: 10.1007/s11661-013-1661-7