منابع مشابه
Optimization of Axisymmetric Extrusion Die Profiles
In this research, optimization process of axisymmetric extrusion dies is proposed. Plastic zone is analyzed using finite element method in the Eulerian system with flow formulation. The die profiles are defined by Bezier curves with six control points. Two effective functions are considered in this research; standard deviation of the strain rate and the rate of energy consumption during extrusi...
متن کاملAluminum extrusion with a deformable die
In aluminum extrusion, a work-piece (billet) is pressed through a die with an opening that closely resembles the desired shape of a profile. By this process, long profiles with an enormous variety of cross-sections can be produced to serve different markets such as building, construction and transport industry. When the shape of a profile does not conform to the specifications defined by the cu...
متن کاملEffect of Die Profile on Mechanical Properties of Product in Extrusion of Rods
In any metal forming process, both the strain rate and deformation rate depend on the die profile. The die profile also, is responsible for the non-uniformity of the deformation along the cross-section. These affect the quality and mechanical properties of the product. Therefore, if a die is designed, in which the affecting variables can be controlled spontaneously it is hoped to obtain a produ...
متن کاملSimulating Die Swell in the Context of Profile Extrusion
Plastics extrusion is a manufacturing process suitable for continuous profiles such as floor skirtings, window frames, and pipes. In industrial applications, extrusion is a large-scale process, financially attractive only for mass products. This is due to the time consuming and costly regulation of the extrusion process and especially, the design of an extrusion die which relies on running-in e...
متن کاملIntegration of CAD/CAE/CAM on Metal Extrusion Die
Traditionally, the cold extrusion die is of flat-faced shape. The dead metal zone causes high shear friction resulting in short die life. To lengthen the die life, the geometry of the die can be optimised. In this paper, the die geometry which is a free form surface, is created based on the user selected die inlet and outlet profiles. Upper-bound theorem in plasticity and optimisation algorithm...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Sen'i Gakkaishi
سال: 1986
ISSN: 0037-9875,1884-2259
DOI: 10.2115/fiber.42.t1