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An Open Die for Incremental Extrusion

A technology of extrusion molding and molds, which is applied in the field of open molds of incremental extrusion molding, to achieve the effect of solving the difficulty of taking materials and increasing the amount of deformation

Active Publication Date: 2020-05-01
NO 59 RES INST OF CHINA ORDNANCE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the method of increasing the amount of deformation of the material mainly adopts large plastic deformation, and it is more common to increase the amount of deformation by increasing the extrusion ratio, such as traditional reverse extrusion or forward extrusion, but the area of ​​the deformed area of ​​the billet is smaller than that of the original billet. area, the effect of this method to increase the amount of deformation is limited

Method used

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  • An Open Die for Incremental Extrusion
  • An Open Die for Incremental Extrusion
  • An Open Die for Incremental Extrusion

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Experimental program
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Embodiment Construction

[0028] The embodiments of the present invention will be described below in conjunction with the drawings.

[0029] figure 1 The open die structure shown for incremental extrusion molding includes an upper die and a lower die.

[0030] Among them, the upper mold includes a male mold 6, the male mold 6 and the male mold base 4 are connected by threads, the outer cone surface of the male mold base 4 is matched with the upper mold sleeve 3, and the upper end surface of the male mold base 4 is connected to the bottom of the upper backing plate 2. When the end surfaces are in contact, the upper end surface of the upper backing plate 2 is in contact with the lower end surface of the upper mold base 1, and the upper limit rod 5 is evenly arranged on the outer side of the upper mold base 1.

[0031] The lower mold includes a concave mold 7, and then the core mold sleeve 9 is put into the cavity of the concave mold 7. The core mold sleeve 9 is in clearance fit with the concave mold 7, and the ...

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Abstract

The invention discloses an open die of incremental extrusion forming. The open die is mainly composed of an upper die and a lower die, wherein the upper die is composed of an upper die seat 1, an upper backing plate 2, an upper die sleeve 3, a terrace die seat 4, upper limiting rods 5, a terrace die 6 and the like; and the lower die is composed of a concave die 7, a core die 8, a core die sleeve 9, piston rods 10, down piston cylinders 11, up piston cylinders 12, a lower backing plate 13, a lower die plate 14, a discharging block 15, a cushion block 16, an ejecting rod 17 and the like. According to the open die of incremental extrusion forming, the deformation amount of blank is increased, the problems that taking materials is difficult and the rigidity of the core die is poor are solved,and the practicability is high.

Description

Technical field [0001] The invention relates to an open die for incremental extrusion forming. Background technique [0002] At present, the method of increasing material deformation mainly adopts large plastic deformation. Among them, it is more common to increase the deformation by increasing the extrusion ratio, such as traditional back extrusion or forward extrusion, but the area of ​​the deformation area of ​​the blank is smaller than that of the original blank. Area, the effect of this method in increasing the amount of deformation is limited. Summary of the invention [0003] The purpose of the present invention is to provide an open die for incremental extrusion forming. [0004] In order to achieve the above objectives, the following solutions are adopted: [0005] An open die for incremental extrusion molding, characterized in that: the die includes an upper die and a lower die; [0006] Among them, the upper mold includes a punch, the punch and the punch seat are connected...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C25/02B21C23/03
CPCB21C23/03B21C25/02
Inventor 黄树海陈强夏祥生赵祖德吴洋柴舒心李辉
Owner NO 59 RES INST OF CHINA ORDNANCE IND