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A method of manufacturing an aluminum alloy conductive rod

A manufacturing method and technology of conductive rods, which are applied in the direction of manufacturing tools, conductors, circuits, etc., can solve the problems of welding quality of large guide heads and guide rods, and achieve the goals of improving the one-time pass rate, dense weld structure, and reducing production costs Effect

Active Publication Date: 2020-01-07
SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of the welding quality of the guide head and the guide rod in the aluminum alloy conductive rod with a large "length / thinness ratio", the "keyhole-free" friction stir welding technology is now used to realize the welding of small-diameter and large-depth circular seams without thinning

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  • A method of manufacturing an aluminum alloy conductive rod
  • A method of manufacturing an aluminum alloy conductive rod
  • A method of manufacturing an aluminum alloy conductive rod

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Embodiment Construction

[0025] specific implementation plan

[0026] Describe the present invention below in conjunction with specific example, as Figure 1~5 As shown, this example manufactures a conductive rod with a diameter of 90mm and a length of 1000mm. figure 1 The conductive rod shown is composed of three parts: two guide heads 1 and a guide rod 2, the guide rod 2 is extruded from aluminum alloy to form an aluminum alloy tube section; the guide head is formed by mechanical turning of aluminum alloy. The guide head 1 and the guide rod 2 are welded by friction stir welding technology, figure 2 (a) is a schematic diagram before reaming, figure 2 (b) is a schematic diagram after reaming, and the specific steps are as follows:

[0027] Step 1: Manufacture of the guide head of the conductive rod; the guide head is machined with 6-series aluminum alloy material according to the size requirements specified in the drawing, and the surface roughness of the guide head is 0.8, which should meet the ...

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Abstract

The invention provides an aluminum alloy conductor pole manufacturing method. According to the method, a conducting body is manufactured firstly, specifically, extrusion forming, broaching forming and mechanical turning of a conducting rod are carried out; then a conducting head is manufactured, specifically, machining of the conducting head is mainly carried out; and finally, the conducting head and the conducting rod are connected through a no-keyhole stirring friction welding technology. By means of the aluminum alloy conductor pole manufacturing method, the problem of the welding quality of large-thickness small-diameter circular seams is solved, and the method has remarkable advantages compared with the prior art. By adoption of the conductor pole manufacturing method, the joint assembly design of the conducting rod and the conducting head as well as the no-keyhole stirring friction welding technology, the qualified rate of manufacturing of conductor poles is greatly improved, the production efficiency is improved, and the production cost is reduced. Tests prove that by adoption of the aluminum alloy conductor pole manufacturing method, the manufacturing dimension precision of the conductor poles meets the design requirement, weld joints are continuous and compact in texture, the defects including pores, impurities and keyholes are avoided, and automatic control is achieved in the production process; and the yield of one-time welding is increased from 40% to 95%.

Description

technical field [0001] The patent of the invention belongs to the manufacturing technology of aluminum alloy conductive rods, specifically the manufacturing technology of the guide head of the conductive rod and the manufacturing technology of the guide rod, and relates to the friction stir welding technology of the ring seam of the guide head and the guide rod. Background technique [0002] Aluminum alloy conductive rods are widely used in substations, electric control units and other equipment. They are used in harsh environments and require high durability, high reliability and safety. The aluminum alloy conductive rod is generally composed of a guide head and a guide rod. The guide head is machined from aluminum alloy material, and the guide rod is made of a hollow aluminum alloy tube profile. The existing method generally uses argon arc welding. Welding defects such as pores and cracks are unavoidable, and its production process is many, the labor intensity of workers i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K20/12B23K20/24B23P15/00B23K101/38
CPCB23K20/122B23K20/1255B23K20/24B23K2101/38B23P15/00
Inventor 吉华杨国舜汪虎
Owner SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY
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