Method for processing rectangular aluminum alloy waveguide by multi-pass rolling drawing

An aluminum alloy and waveguide technology, applied in the field of mechanical processing, can solve the problems of lack of technical data, lower manufacturing costs, scratches on the surface of pipes, etc., and achieve the effects of centralized processes, reduced contact friction, and large deformation

Inactive Publication Date: 2011-12-21
CHONGQING UNIV
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Problems solved by technology

However, this near-solid lubricating film escapes quickly under high-pressure stress to form a local dry friction zone, and because of deformation and frictional heat generation during high-speed drawing, local high temperature is caused, which eventually leads to scratches on the surface of the drawn pipe. scars and partial burns
The third is to realize the smooth performance of multi-pass drawing from the aspects of form

Method used

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  • Method for processing rectangular aluminum alloy waveguide by multi-pass rolling drawing
  • Method for processing rectangular aluminum alloy waveguide by multi-pass rolling drawing
  • Method for processing rectangular aluminum alloy waveguide by multi-pass rolling drawing

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specific Embodiment

[0036] On the basis of ordinary roller drawing, the present invention improves the roller group, turns one group of rollers into multiple groups of rollers side by side, and designs the arrangement scheme of the roller group (such as Figure 11 shown). In this new processing method, pipes with different cross-sectional shapes can be obtained by changing the hole shape on the rollers and adjusting the distance between the rollers. The rectangular aluminum alloy waveguide is formed by a new rolling drawing method, and the flow function is introduced in the second rolling process to design the streamline of the roller arrangement, and finally determine the geometric shape of the roller group. Specific examples are as follows:

[0037] ①The round tube Φ93.5 / Φ89.2×2.15mm is produced by hot extrusion (450℃) of cylindrical aluminum ingot, and the cross-sectional shape of the tube blank is as follows figure 1 ;

[0038] ②The first pass of rolling drawing (using 1 set of rollers) tr...

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Abstract

The invention relates to a method for processing a pipe with a rectangular section through multi-pass rolling drawing. The method is a novel plastic forming process formed by combining the advantages of two conventional deformation processes, namely rolling and drawing. In the method, metal is rolled by a plurality of groups of rollers with hole patterns, and an aluminum alloy waveguide with highshape and size accuracy and internal quality is manufactured at low cost. A flexible roller group replaces the conventional die to form the rectangular aluminum alloy waveguide, and a flow function is introduced to smooth a three-dimensional cavity formed by the rollers, so that contact friction force in the process of deforming a blank is reduced, and stability in the process of deforming the blank is improved; and by the novel processing method, the metal has larger deformation than that drawn by a fixed die, drawing force is small, processes can be reduced, energy consumption is reduced, and metal which is difficult to deform is easy to process.

Description

technical field [0001] The present invention relates to a process for processing a rectangular aluminum alloy waveguide, in particular to a novel multi-pass rolling drawing method for processing a rectangular aluminum alloy waveguide. It belongs to the technical field of mechanical processing. [0002] Background technique [0003] Aluminum alloy waveguide with rectangular cross-section is a waveguide material boundary device located between signal transceiver units, and is an important device for collecting or reflecting waveguide beams in the fields of radar, telemetry, remote control and long-distance communication. Today's radar technology is developing towards a higher frequency band. The application of millimeter wave technology to develop high-sensitivity radar can realize ultra-low altitude detection and tracking targets, making it have a series of high resolution, strong anti-interference ability, small system size, and light weight. advantage. The rectangular w...

Claims

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Application Information

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IPC IPC(8): B21C37/06
Inventor 权国政李贵胜张艳伟王熠昕
Owner CHONGQING UNIV
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