Unlock instant, AI-driven research and patent intelligence for your innovation.

An open cavity multifunctional extrusion die

An extrusion die, open type technology, applied in the field of multi-functional extrusion dies with open cavity, can solve the problems of limited metal flow space in the mold cavity, affecting the service life of the mold, and large bearing capacity of the mold, so as to improve the forming quality and Microstructure performance, improved forming efficiency, and small load effects

Active Publication Date: 2022-07-15
NO 59 RES INST OF CHINA ORDNANCE IND +1
View PDF20 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, for the preparation of shell forgings with a solid bottom, the conventional forming process includes multiple pressing, punching, multiple extrusion, drawing, post-processing and other processes. During the preparation process, multiple sets of molds are required. The blanks between each process need to be heated repeatedly, the forming efficiency is low, and the metal flow space in the mold cavity is limited, the mold bearing capacity is large, and the service life of the mold is affected

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
  • An open cavity multifunctional extrusion die
  • An open cavity multifunctional extrusion die
  • An open cavity multifunctional extrusion die

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0024] see figure 1 , figure 2 and image 3 As shown, an open cavity multifunctional extrusion die is mainly composed of an upper die and a lower die.

[0025] Among them, the upper die includes an upper template 1, an upper backing plate 2, and an upper sleeve plate 3 stacked in sequence from top to bottom, and connected with screws; the punch base 4 is installed in the middle of the upper sleeve plate 3, and the punch base 4 The outer surface is matched with the inner surface of the upper sleeve plate 3 with the tapered surface, and the upper end surface of the punch base 4 is attached to the lower surface of the upper backing plate 2; the upper pad 5 is symmetrically placed on the upper end surface of the outer punch 6, and the outer punch 6 and The outer surface of the inner punch 7 is gap-fitted, and the flange boss of the upper end face of the outer punch 6 is placed on the step of the inner punch 7, so that the upper cushion block 5, the outer punch 6 and the inner p...

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 provides an open cavity multifunctional extrusion die, comprising an upper die, a lower die and a core die, and an open cavity arranged on the lower die, wherein the middle section of the open cavity is an inverted truncated cone structure, And under the action of external force, the frustum-shaped structure can radially expand, so that the maximum inner diameter of the frustum-shaped structure is equal to the inner diameter of the rest of the open cavity. The die integrates multiple functions, which can realize the functions of billet heating, solid positive extrusion, multi-directional extrusion, radial unloading, hollow positive extrusion, axial side pressure relief, trimming and other functions. By using the mold, only one set of the mold of the present invention can be heated to realize the forming of the product.

Description

technical field [0001] The invention relates to an extrusion die, in particular to an open cavity multifunctional extrusion die. Background technique [0002] In the prior art, for the preparation of shell-and-tube forgings with solid bottoms, the conventional forming process includes multiple pressing, punching, multiple extrusion, drawing, post-processing and other processes, and multiple sets of molds need to be used in the preparation process. The blank between each process needs to be heated repeatedly, the forming efficiency is low, and the metal flow space in the mold cavity is limited, the mold bearing capacity is large, and the service life of the mold is affected. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide an open cavity multifunctional extrusion die, at least for reducing the bearing capacity of the die. [0004] In order to achieve the above objects, the present invention adopts the following technical solutions. [0...

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 Patents(China)
IPC IPC(8): B21C25/02B21C29/04B21C23/04
CPCB21C25/02B21C29/04B21C23/04
Inventor 黄树海刘星陈强肖寒林军夏祥生吴洋王艳彬柴舒心
Owner NO 59 RES INST OF CHINA ORDNANCE IND