A method of using a self-sustaining friction stir welding stirring head capable of separately replacing the stirring needle

A friction stir welding and friction stir technology, which is applied in welding equipment, non-electric welding equipment, metal processing equipment, etc., can solve the problem that the stirring head cannot be used continuously, and achieve the effect of saving the test cost.

Active Publication Date: 2016-06-01
严格集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem that the entire stirring head cannot be used after the stirring needle of the existing self-sustaining friction stir welding stirring head breaks, and provides a self-sustaining friction stir welding stirring head and its Instructions

Method used

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  • A method of using a self-sustaining friction stir welding stirring head capable of separately replacing the stirring needle
  • A method of using a self-sustaining friction stir welding stirring head capable of separately replacing the stirring needle

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specific Embodiment approach 1

[0014] Specific implementation mode one: combine figure 2 Describe this embodiment in detail. This embodiment is a self-sustaining friction stir welding stirring head that can replace the stirring needle separately. It consists of an upper shoulder 1, an upper shoulder sleeve 2, a stirring needle 3 and a lower shoulder 4; The lower part of the inner surface of the shoulder 1 is provided with an internal thread, the inner surface of the upper shoulder sleeve 2 is provided with an internal thread, and the upper part of the outer surface is provided with an external thread, the external surface of the stirring needle 3 is provided with an external thread, and the upper positioning boss 3 -1 and the lower positioning boss 3-2, the inner surface of the lower shoulder 4 is provided with an internal thread, the stirring pin 3 is connected with the upper shoulder sleeve 2 and the lower shoulder 4 through threads respectively, and the upper shoulder sleeve 2 It is arranged on the uppe...

specific Embodiment approach 2

[0016] Embodiment 2: The difference between this embodiment and Embodiment 1 is that: the end of the stirring needle 3 is provided with two parallel planes as clamping ends when disassembling. Others are the same as in the first embodiment.

[0017] Under the condition of ensuring the reliable connection between the stirring needle 3 and the upper shoulder sleeve 2 and the lower shoulder 4, two parallel planes are processed on the end of the stirring needle as the clamping end during disassembly, so as to facilitate the separate replacement of the stirring needle .

specific Embodiment approach 3

[0018] Specific implementation mode three: combination figure 1 This embodiment is described in detail. This embodiment is a method of using a self-sustaining friction stir welding stirring head that can be replaced by a separate stirring needle. The steps are as follows:

[0019] 1. Assembling the stirring head: Screw the upper shoulder sleeve 2 from the upper end of the stirring needle 3 to the upper positioning boss 3-1 to fix it, and then screw the fixed upper shoulder sleeve 2 and stirring needle 3 into the The upper shoulder 1 is fixed, and then the lower shoulder 4 is screwed into the lower positioning boss 3-2 from the lower end of the stirring pin 3 to fix it, and the assembly of the self-sustaining friction stir welding stirring head that can replace the stirring pin alone is completed;

[0020] 2. Fix the first workpiece to be welded and the second workpiece to be welded: fix the first workpiece to be welded 5 and the second workpiece to be welded 6 on the workbench...

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Abstract

The invention relates to a self-holding type friction stir welding stirring head with a stirring needle capable of being independently replaced and an application method of the stirring head. The problem that the whole stirring head cannot continue to be used after a stirring needle of an existing self-holding type friction stir welding stirring head is fractured. The stirring head is formed by connecting an upper shaft shoulder, an upper shaft shoulder sleeve, the stirring needle and a lower shaft shoulder in a threaded mode. The application method comprises the steps that the stirring head is assembled, a first welded workpiece and a second welded workpiece are fixed, the stirring head is positioned, friction stir welding is carried out, and the stirring head is detached. The stirring head and the application method have the advantages that the upper shaft shoulder sleeve is arranged between the upper shaft shoulder and the stirring needle to achieve independent replacing of the stirring needle, the shaft shoulders can be repeatedly utilized, the cost of self-holding friction stir welding is saved, the gap between the upper shaft shoulder sleeve and the lower shaft shoulder can be adjusted by replacing different stirring needles, and welding of workpieces with different thicknesses is achieved.

Description

technical field [0001] The invention relates to a self-supporting stirring head for friction stir welding and a using method thereof. Background technique [0002] "Friction stir welding" technology is known as the most revolutionary technology in the 21st century. After more than 20 years of technology research and development and engineering promotion, it has been widely used in various fields at home and abroad. The self-sustaining friction stir welding technology developed on its basis has more significant technical advantages for thin-walled structures, hollow structures and other complex structures, injecting new vitality into friction stir welding. The invention patent application with the patent application number 2010102964802 discloses a "self-sustaining friction stir welding method with different diameters of upper and lower shaft shoulders and its stirring head", the purpose is to solve the problem of the upper and lower welding methods of the existing self-susta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K20/12
CPCB23K20/1255
Inventor 刘会杰胡琰莹赵运强王志国刘向前窦超
Owner 严格集团股份有限公司
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