Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Pre-filled wire stirring friction welding method

A technology of friction stir welding and welding method, which is applied in the direction of welding equipment, non-electric welding equipment, metal processing equipment, etc., can solve the problem of thinning of the effective thickness of the weld, and achieve the reduction of the effective thickness of the weld and increase the welding speed , Increase the effect of weld reinforcement

Inactive Publication Date: 2013-02-27
HARBIN INST OF TECH
View PDF6 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a pre-filled wire friction stir welding method to solve the problem of thinning the effective thickness of the weld seam in the existing friction stir welding process

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
  • Pre-filled wire stirring friction welding method
  • Pre-filled wire stirring friction welding method
  • Pre-filled wire stirring friction welding method

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0011] Specific implementation mode one: combine Figure 1 ~ Figure 3 Describe this embodiment, the prefilled wire friction stir welding method of this embodiment is realized according to the following steps:

[0012] Step 1. Clamping the workpiece to be welded: the first workpiece to be welded 5 and the second workpiece to be welded 6 are docked and placed in the same horizontal plane, and clamped on the workbench with a clamp. The first welded workpiece 5 and the second workpiece 6 to be welded are metal plates;

[0013] Step 2. Welding of the initial section of the prefilled wire: place the welding torch 1 at the initial position O of the joint between the two workpieces to be welded, and use TIG or MIG welding to weld along the first workpiece 5 to be welded and the second workpiece 6 to be welded Welding with pre-filled wire in the direction of welding, the welding length is 10mm-100mm, the welding current is 10A-200A, the walking speed of the welding torch is 0.1m / min-1...

specific Embodiment approach 2

[0016] Specific implementation mode two: combination figure 2 To illustrate this embodiment, the depth of pressing the semi-cylindrical stationary shoulder sleeve 4 into the workpiece in step 3 of this embodiment is smaller than the depth of pressing the shoulder 3-2 into the workpiece. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0017] Specific implementation mode three: combination figure 1 To illustrate this embodiment, the TIG or MIG pre-filled wire process in step 4 of this embodiment is performed synchronously with the friction stir welding process, and the welding position of the friction stir welding is located 10 mm to 100 mm behind the pre-filled wire arc 2 . Other steps are the same as in the first embodiment.

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

No PUM Login to View More

Abstract

The invention discloses a pre-filled wire stirring friction welding method and relates to a stirring friction welding method. By the method, the problem that the effective thickness of a weld joint is reduced in the conventional stirring friction welding process. The method comprises the following steps of: 1, clamping a welded workpiece; 2, welding a start section of a pre-filled wire, wherein the welding length is 100mm, and a stirring head stands still at a start position of the pre-filled wire; 3, determining the pressing depth of the stirring head, namely pressing the stirring head into the welded workpeice at the start position of the pre-filled wire, wherein the depth of a shoulder pressed into the workpiece is 0.1mm, and the depth of a semicylindrical static shoulder sleeve pressed into the workpiece is 0.05mm; and 4, performing stirring friction welding on the pre-filled wire, namely performing pre-filled wire welding by a welding gun along the welding direction by using a TIG (tungsten-inert gas) or MIG (metal-inert gas) welding method, wherein the welding current is 100A, the traveling speed of the welding gun is 1.0 m / min, and the stirring head and the welding gun synchronously perform stirring friction welding. The method is applied to stirring friction welding of aluminum alloy, magnesium alloy, copper alloy and special materials.

Description

technical field [0001] The invention relates to a friction stir welding method, in particular to a prefilled wire friction stir welding method. Background technique [0002] Since the British Welding Institute (TWI) invented the friction stir welding method in 1991, this technology can eliminate welding defects such as pores, inclusions, cracks, etc. And it does not produce arc light, smoke, noise pollution, etc., and at the same time can significantly reduce costs, save materials, optimize structures, and reduce the structural weight of aircraft, etc., which have attracted the attention of scientific research institutions in various countries. Because this technology has many remarkable features that other methods do not have, it will soon be used in the aerospace field, and this method is selected for the welding of the longitudinal seam of the core tank section of the new generation of launch vehicles. Although high-quality welded joints can be obtained by using the fric...

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): B23K28/02B23K20/24B23K20/12
Inventor 黄永宪刘昊舒吕世雄万龙刘会杰冯吉才
Owner HARBIN INST OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com