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A molding method for processing complex variable cross-section small-sized pipes

A forming method and variable cross-section technology, applied in forming tools, metal processing equipment, manufacturing tools, etc., can solve problems such as the inability to apply variable cross-section small-size tube forming work, the inability to realize the installation of designed coils, and the difficulty in density control. Achieve the effects of simple shape, easy manufacture, and reduced manufacturing cost

Inactive Publication Date: 2018-03-27
SHENYANG POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the inner diameter of the variable cross-section small-size tube is small, and the traditional coil has a certain cross-sectional size, on the one hand, it is difficult to control the density of the traditional coil winding method, and because the inner diameter of the variable cross-section small-size tube is small, it is also impossible Realize the installation of the designed coil, so the electromagnetic forming process cannot be applied to the forming work of small-sized tubes with variable cross-sections

Method used

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  • A molding method for processing complex variable cross-section small-sized pipes
  • A molding method for processing complex variable cross-section small-sized pipes
  • A molding method for processing complex variable cross-section small-sized pipes

Examples

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Embodiment

[0035] Embodiment: Add pins in a non-magnetic half-mold 2, close the other half-mold 2, and then put the aluminum alloy tube blank 5, so that the aluminum alloy tube blank 5 is placed in the model groove 7 in the two half-molds 2 Inside, the magnetic coil 9 is put into the middle of the hollow tube blank 5, the two ends of the magnetic coil 9 metal pipe 1 are placed on the positioning grooves 6 in the two halves of the mold 2, and the magnetic coil 9 two ends are respectively connected to two stages of power supply. Then put the two locking collars 4 on the outside of the forming die, and clamp them in a stepped manner to fix them. Connect the magnetic coil 9 into the electromagnetic forming machine, start the power supply and charge the high-voltage capacitor first, after the charging capacitor is fully charged, check the wiring of the main circuit, and after confirming that it is correct, start the instantaneous discharge button to complete the instantaneous discharge. Under...

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Abstract

A forming device and forming method for processing small-size pipes with complex variable cross-sections belong to the technical field of forming small-size pipes with complex variable cross-sections (φ10mm and above), and specifically relate to a forming device and forming method for processing small-size pipes with complex variable cross-sections. The invention provides a forming device and a forming method of a complex variable cross-section small-size tube based on a controllable density magnetic coil instead of a traditional coil, which is easy to operate and high in product precision. The molding device of the small size pipe with variable cross-section of the present invention comprises a non-magnetic mold body and a magnetic ring, a mold groove is arranged in the mold body, and it is characterized in that: the magnetic ring is a metal pipe, and the metal pipe is provided with a groove corresponding to the mold groove The helical part processed by helical processing.

Description

technical field [0001] The invention belongs to the technical field of forming small-sized pipes with complex variable cross-sections (φ10mm and above), and specifically relates to a forming device and a forming method for processing small-sized pipes with complex variable cross-sections. Background technique [0002] Small-sized pipes with complex variable cross-sections (φ10mm and above) are widely used in various industries such as aerospace, construction, and electric power. The main production methods are: 1. Prefabricated hollow pipes, which are expanded to form small-sized pipes with complex variable cross-sections. After being cast into a billet, it is rolled or extruded into a hollow pipe, and then through the bulging process, the processing of small-sized pipes with complex variable cross-sections is realized. However, this method has many procedures and low metal utilization rate; it can also be cast into a hollow tube blank first, and a small amount of deformatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D26/14B21D37/10
CPCB21D26/14B21D37/10
Inventor 王哲英王哲峰马明旭
Owner SHENYANG POLYTECHNIC UNIV
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