Asymmetric continuous large-deformation extrusion die for magnesium alloy

A kind of extrusion processing, asymmetric technology, applied in the direction of metal extrusion dies, etc., can solve the problems of limited grain refinement ability, rising production cost, uneven structure, etc., to change the distribution of inclusions, improve extrusion molding ability , improve the effectiveness of the organization

Active Publication Date: 2020-07-10
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the small amount of deformation and limited grain refinement ability of the traditional plastic deformation process, problems such as uneven structure and even cracks are prone to occur. To obtain a magnesium alloy with uniform and fine structure and optimized performance, it usually requires multiple extrusions. lead to a substantial increase in production costs

Method used

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  • Asymmetric continuous large-deformation extrusion die for magnesium alloy
  • Asymmetric continuous large-deformation extrusion die for magnesium alloy
  • Asymmetric continuous large-deformation extrusion die for magnesium alloy

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Embodiment Construction

[0020] The technical solution of the present invention will be further explained and described in the manner of specific embodiments below.

[0021] Such as figure 1 As shown, the magnesium alloy asymmetrical continuous large-deformation extrusion die is composed of a punch and a die.

[0022] The punch is composed of a top plate and an extruding rod 3. The extruding rod 3 is fixedly mounted on the upper die frame 1, and the top plate is installed on the die and pressed on the top of the blank 8;

[0023] Such as figure 2 As shown, the die is composed of a die outer ring 9 and two detachable mold cores 10; Assembled into a flat cylinder installed in the outer ring 9 of the die; the middle of the assembled flat cylinder is the mold cavity;

[0024] Such as image 3 and Figure 4 As shown, the mold cavity includes an upsetting cavity 13 and an extrusion cavity 14; the upsetting cavity 13 is arranged on the feeding side of the mold cavity, and the cross section is rectangul...

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Abstract

The invention discloses a magnesium alloy asymmetric continuous large-deformation extrusion processing die, and belongs to the field of non-ferrous metal plastic forming. The asymmetric continuous large-deformation extrusion processing die comprises an upset-extruding cavity at the upper part and an extruding cavity at the lower part, and a forming channel hole can be designed to be in an asymmetric type. The extrusion deformation of one side of a casting material is large while the extrusion deformation at the other side is small, so that the deformation is intensified. Die cores are detachable, and various types of die cores which can be suitable for different sizes are designed, so that different production requirements can be met. After one casting material is deformed, the casting material can be quickly replaced with the next casting material, so that continuous production is realized. The die is mainly used for realizing continuous extrusion forming of a sheet of a magnesium alloy sheet-shaped casting material, and the magnesium alloy sheet-shaped part which is uniform in structure and optimized in performance can be obtained through the processing technology.

Description

technical field [0001] The invention belongs to the field of non-ferrous metal plastic forming. Background technique [0002] As an important emerging engineering material, magnesium alloy has received more and more attention. But the existing use situation is far from exerting its potential advantages, and the actual industrial application is very small. The crystal structure of magnesium alloy is a close-packed hexagonal structure, and its plastic formability at room temperature is poor, so it is greatly restricted in practical applications. Magnesium alloy products are divided into cast magnesium alloys and wrought magnesium alloys. Wrought magnesium alloys mainly refine the structure and improve performance through thermal deformation, such as rolling and extrusion. Compared with cast magnesium alloys, wrought magnesium alloys have better comprehensive mechanical properties, meet various requirements in industrial applications, and have more development potential and a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C25/02
CPCB21C25/02
Inventor 李志刚江昊王慧远查敏王珵韩洪江赵泼贾红杰
Owner JILIN UNIV
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