Unlock instant, AI-driven research and patent intelligence for your innovation.

Polishing multifunctional stirring friction welding tool with welding

A friction stir and multi-functional technology, applied in the direction of manufacturing tools, welding equipment, non-electric welding equipment, etc., can solve the problems of poor surface finish, stress concentration, and easy flashing of welds, etc., to achieve simple design, eliminate stress concentration, The effect of improving the finish

Inactive Publication Date: 2009-10-21
HARBIN INST OF TECH
View PDF3 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems that the existing friction stir welding welding tools are prone to flash, poor weld surface finish and stress concentration during the welding process, and further provide a multifunctional friction stir welding welding tool with welding polishing

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Polishing multifunctional stirring friction welding tool with welding
  • Polishing multifunctional stirring friction welding tool with welding
  • Polishing multifunctional stirring friction welding tool with welding

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0008] Specific implementation mode 1: Combination Figure 1 ~ Figure 4 To describe this embodiment, a multifunctional friction stir welding tool for welding-on-the-weld polishing in this embodiment includes a stirring head base, which is composed of a cylindrical clamping body 3, a cylindrical connecting body 4 and a stirring needle 1. The cylindrical clamping body 3, the cylindrical connecting body 4, and the stirring needle 1 are coaxially made into one body from top to bottom in sequence, and the junction of the stirring needle 1 and the cylindrical connecting body 4 forms a positioning shoulder end surface 4- 2. An anti-loosening fastening surface 3-1 is formed on the side of the cylindrical clamping body 3, and an annular heat-insulating heat dissipation groove 4-1 is opened on the cylindrical connecting body 4; the stirring needle 1 is driven by a shaft The shoulder 1-1 and the needle body 1-2 are composed of the shaft shoulder 1-1 and the needle body 1-2 coaxially made from...

specific Embodiment approach 2

[0009] Specific implementation manner two: combination Figure 1 ~ Figure 4 To illustrate this embodiment, the upper ends of the multiple stainless steel wire bundles 2-3 of this embodiment are uniformly fixed in the U-shaped wire brush holder 2-1. The other composition and connection relationship are the same as in the first embodiment.

specific Embodiment approach 3

[0010] Specific implementation mode three: combination figure 2 with Figure 4 To explain this embodiment, the length L of the lower end of the multiple stainless steel wire bundles 2-3 that protrudes from the bottom surface of the shoulder 1-1 is 2mm-6mm, and the inner side of the lower end of the multiple stainless steel wire bundles 2-3 is 1 mm away from the shoulder 1-1. The radial distance H of -1 is 3 mm to 15 mm, and the overall width K of the plurality of stainless steel wire bundles 2-3 is 5 mm to 10 mm. Other components and connection relationships are the same as those in the first or second embodiment.

[0011] Specific implementation manner 4: Combination image 3 with Figure 4 To describe this embodiment, the upper part of the shoulder 1-1 of this embodiment is a frustum-shaped structure. This arrangement effectively prevents the relative sliding of the wire brush structure 2 and the shaft shoulder 1-1. The other composition and connection relationship are the same...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
distanceaaaaaaaaaa
widthaaaaaaaaaa
Login to View More

Abstract

The invention provides a polishing multifunctional stirring friction welding tool with welding and relates to a stirring friction welding tool. The tool solves the problems that the prior stirring friction welding tool is easy to generate edge fins in the welding process, the finish degree of the welding seam surface is poor, and the stress is concentrated. A positioning pad ring of the tool is positioned between a platform shoulder end surface and a U-shaped steel brush base; the U-shaped steel brush base is fixedly connected with the upper part of a shaft shoulder; the upper ends of a plurality of stainless steel wire bundles are fixedly arranged in the U-shaped steel brush base; the stainless steel wire bundles are weaved together by weaving stainless steel wires; the lower ends of the stainless steel wire bundles extend out of the bottom side of the shaft shoulder, and a supporting pad ring and a positioning nut are fixedly arranged on the upper part of the shaft shoulder from the upper side to the lower side. The tool clears away edge fins on both sides of the welding seam, improves the finish degree of the welding seam surface, refines surface crystal grains and eliminates the stress concentration. The multifunctional welding tool has the advantages of simple design and convenient adjustment, and ensures the quality of the stirring friction welding seams of various materials, such as aluminum alloys, magnesium alloys, copper alloys and the like.

Description

Technical field [0001] The invention relates to a friction stir welding welding tool, in particular to a multifunctional friction stir welding welding tool for welding and polishing. Background technique [0002] Friction stir welding (FSW) is a new solid-phase connection method invented in 1991 at the British Welding Institute (TWI). The patent number of the invention is US5460317. The basic process of the method is a stir needle and a shaft shoulder. The non-consumable welding tool (stirring head) rotates at high speed to insert the stirring needle between the pre-connected plates. When the shaft shoulder contacts the surface of the workpiece, the strong friction and stirring action of the stirring head is used to make the metal in the welding seam area in a thermoplastic state and After being crushed and mixed, they are connected together under a certain pressure. The stirring head rotates and squeezes at a high speed in the direction of the welding seam, forming a welding sea...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/12B23K20/26B24D13/10C22F1/00
Inventor 黄永宪刘会杰张郁中张会杰周利沈俊军
Owner HARBIN INST OF TECH