Extrusion forming method for no-anisotropy magnesium alloy rods

An anisotropic, extrusion forming technology, applied in the direction of metal extrusion dies, can solve problems such as restricting the extensiveness of the extrusion process, cracking, product scrapping, etc., to achieve significant economic benefits, high mechanical properties, and improved mold effect of life

Active Publication Date: 2020-01-10
ZHONGBEI UNIV
View PDF8 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The metal is in a state of three-dimensional compressive stress during extrusion. Although the plasticity of the metal will be improved, due to the existence of additional stress, cracks will often occur when extruding low-plastic materials, resulting in product scrapping and restricting the extrusion process. Wide range of applications

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Extrusion forming method for no-anisotropy magnesium alloy rods
  • Extrusion forming method for no-anisotropy magnesium alloy rods
  • Extrusion forming method for no-anisotropy magnesium alloy rods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without paying creative labor. Please refer to Figure 1-10 .

[0028] A non-anisotropic extrusion die for magnesium alloy rods, please refer to figure 1 , figure 2 , Figure 7 and Figure 9 , including an insert 1, a punch 2 connected to a press (not shown in the figure), a die 3 connected to a rotating mechanism (not shown in the figure), and an ejection mechanism (not shown in the figure), so The punch 2 is connected to a press to move axially, and the die 3 is connected to a rotating mecha...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an extrusion forming method for no-anisotropy magnesium alloy rods. The method relates to an extrusion forming mold for the no-anisotropy magnesium alloy rods; the mold comprises an insert, a convex mold connected with a press, a concave mold connected with a rotating mechanism, and an ejecting mechanism; a molding cavity is formed in the concave mold, and is provided witha feed port; an extrusion working belt is arranged in the molding cavity; and the insert is mounted on the extrusion working belt. The torque is applied based on traditional extrusion; the rotating lap number can be increased through change of the rotating speed, so that the gradient structure is improved under rotating formation, and the uniform deformation of the structure is realized; the higher shearing strain is generated through change of internal stress and strain states of a deformation body to form a fine crystal structure with large-angle grain boundary, so that the anisotropy of components is reduced; and insert can be timely replaced after wear to prevent the cost increment of the scrapped concave mold, so that the mold life is prolonged, and the popularization and economical benefit in the forging industry is prominent.

Description

technical field [0001] The invention belongs to the technical field of metal plastic processing and forming, and in particular relates to an extrusion forming method of a non-anisotropic magnesium alloy rod. Background technique [0002] Extrusion is widely used in the field of plastic forming of metal materials due to its advantages of high efficiency, high quality and low consumption. The traditional extrusion processing method refers to applying external force to the metal bar placed in the mold cavity to force the metal to extrude from the die hole to obtain the required cross-sectional shape, size and certain mechanical properties. During forward extrusion deformation, the bar is roughly divided into: deformation zone, non-deformation zone and dead zone. In the deformation zone, the metal flow is uneven, the center layer flows fast, and the outer layer flows slowly; when entering the stable deformation stage, the degree of uneven deformation is the same. There will be...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B21C23/08B21C25/02
CPCB21C23/08B21C25/02
Inventor 于建民吴国琴张慧芳贾蕾琛张治民郝红元
Owner ZHONGBEI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap