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T type part vertical multiple process step extrusion die and forming technology thereof

An extrusion die and multi-step technology, which is applied in the direction of manufacturing tools, metal processing equipment, forging/pressing/hammer devices, etc., can solve the problems of frictional resistance surface defects, unfavorable T-shaped parts forming, and difficulty in mass production. Achieve the effects of forming process stability, improving production efficiency, and improving the mechanical properties of workpieces

Active Publication Date: 2015-07-15
安徽金铂新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the device is extruding a T-shaped piece, the frictional resistance of the workpiece is relatively large, which is not conducive to the forming of the T-shaped part, and can only be used to form a T-shaped piece with a constant cross-section; for the initial blank with a large aspect ratio, due to friction Large resistance is easy to form surface defects; in addition, it is inconvenient to take out the workpiece after the device is squeezed, and it is not easy to organize mass production

Method used

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  • T type part vertical multiple process step extrusion die and forming technology thereof
  • T type part vertical multiple process step extrusion die and forming technology thereof
  • T type part vertical multiple process step extrusion die and forming technology thereof

Examples

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Effect test

Embodiment 1

[0030] Such as image 3 As shown, this embodiment relates to an extrusion die, including: an upper die 1, a lower die 2, an inclined slider 3, a sleeve 4, a push rod 5, a push rod 6 and an elastic element 7, wherein: the upper die When mold 1, lower die 2, and inclined slider 3 are closed, a cylindrical mold cavity is formed. The sleeve 4 is controlled by the elastic element 7 to realize floating control. The concave mold is designed with a side core-pulling mechanism of the inclined slider, and the push rod 6 is set on the In the sleeve 4, the lower end is fixed on the inclined slider 3.

[0031] The diameters of the upper and lower parts of the inner side wall of the inclined slider 3 are different, and the large diameter of the upper part makes the large step of the rod part shape, and the diameter of the cavity is D 1 3.8mm, D 2 is 4.8mm, and there is a transition bevel in the middle, where the angle p 1 is 22.5°; inclined slider 3 inclined slider height h 1 =8.3mm, th...

Embodiment 2

[0038] The cavity diameter D in this example 1 3.9mm, D 2 is 4.9mm, and there is a transition bevel in the middle, where the angle p 1 is 23.5°; inclined slider 3 inclined slider height h 1 =8.3mm, the inclination angle is p 2 = 65°.

[0039] The process steps involved in this embodiment are as follows:

[0040] The first step is to use 20# steel to cut the material with bar, among which: the height of the bar is 32mm, the diameter is 3.8mm, and the diameter of the blank is d 1 0.1mm smaller in diameter;

[0041] The second step is forming. Put the cylindrical blank into the extrusion mold cavity for extrusion. The upper die, the lower die and the sleeve are pressed down by 18.5mm, so that the upper end of the workpiece is completely filled with the die cavity, and the lower end is completely filled. length to d 3 greater than d 2 =11.8mm;

[0042] The third step is unloading, the push rod drives the inclined slider to move obliquely, and the billet can be ejected by ...

Embodiment 3

[0044] The cavity diameter D in this example 1 4.0mm, D 2 is 5.0mm, and there is a transition bevel in the middle, where the angle p 1 is 24.5°; inclined slider 3 inclined slider height h 1 =8.3mm, the inclination angle is p 2 = 63°.

[0045] The process steps involved in this embodiment are as follows:

[0046] The first step is to use 15# steel for cutting with bar stock, among which: the bar stock height is 32mm, the diameter is 3.9mm, and the diameter of the blank is d 1 0.1mm smaller in diameter;

[0047] The second step is forming. Put the cylindrical blank into the extrusion mold cavity for extrusion. The upper die, the lower die and the sleeve are pressed down by 18.5mm, so that the upper end of the workpiece is completely filled with the die cavity, and the lower end is completely filled. length to d 3 greater than d 2 =11.8mm;

[0048] The third step is unloading, the push rod drives the inclined slider to move obliquely, and the billet can be ejected by the...

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Abstract

The invention discloses a T type part vertical multiple process step extrusion die and forming technology thereof. The die comprises an upper concave die, a lower concave die and an extrusion die composed of a slanted slide block and a locating mechanism, wherein a cylindrical die cavity is formed when the upper concave die, the lower concave die and the slanted slide block are closed, the locating mechanism is movably connected with the slanted slide block, the locating mechanism achieves locating by adopting a sleeve with a push rod, the push rod is movably arranged inside the sleeve, and the upper end of the push rod is fixedly connected with the slanted slide block. By means of the T type part vertical multiple process step extrusion die and the forming technology thereof, the workpiece forming quality can be effectively improved, production processes are reduced, the production efficiency can be improved exponentially, the single-piece cost is reduced, and the mass production of the type of parts is achieved.

Description

technical field [0001] The invention relates to a technology in the field of mechanical processing, in particular to a vertical multi-step extrusion die for a T-shaped part and a forming process thereof. Background technique [0002] T-shaped parts are an important mechanical part. The traditional free forging method has low production efficiency and high labor intensity, and is only suitable for small batch production. The existing T-shaped forging billet processing technology (Chinese Patent Document No. CN102873237A) comprises the following steps: 1) putting one end of the blank into the mold cavity of the tire membrane, and the other end is in contact with the first flat anvil; Press the first flat anvil in the direction of the tire membrane until the head of the T-shaped forging is formed to obtain a T-shaped forging blank; 3) Extrude the T-shaped forging blank with two second flat anvils arranged oppositely , to obtain a T-shaped forging blank whose head has a pair of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J13/02B21J5/02B21J1/02
CPCB21J1/02B21J5/02B21J13/02
Inventor 胡成亮杨丰钰赵震
Owner 安徽金铂新材料科技有限公司
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