Hollow tungsten electrode arc coaxial laser composite wire filling welding method

A welding method and laser technology, applied in laser welding equipment, arc welding equipment, welding equipment, etc., can solve the problems of poor melting ability of heat source welding wire, low deposition efficiency, reduction of current density, temperature, and plasma flow rate, etc.

Pending Publication Date: 2021-05-18
HARBIN WELDING INST LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the current density, temperature, and plasma flow rate on the central axis of the arc are significantly reduced due to the current tungsten axis being the central hole, which leads to poor melting ability of the heat source welding wire and low welding process deposition e

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
  • Hollow tungsten electrode arc coaxial laser composite wire filling welding method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024]Example 1:

[0025]A hollow tungsten arc coaxial laser composite filling welding method, laser light passes through the center hole of the tungsten, the laser spot is directly active, and the laser-hollow tungsten electrode arc is combined with heat melt welding wire, the method includes the steps of:

[0026]Step 1: Before welding, the welder is polished or cleaned, and the workpiece after polishing or cleaning is fixed;

[0027]Step 2: Adjust the laser and the hollow tungsten pole axis relative position, so that the laser passes from the hollow tungsten pole center. Adding a side bypassive wire, adjust the welding wire to the angle and position, so that the laser is passed through the hollow tungsten, and then directly irradiates the surface of the wire;

[0028]Step 3: Set the hollow tungsten arc parameters and laser parameters, set the hollow tungsten TIG welding current 150-350a, the laser power is 10 ~ 6000 W, the welding speed is 0.1-1 m / min, and the selection of the wire diamete...

Example Embodiment

[0031]Example 2:

[0032]According to the hollow tungsten electrode arc coaxial laser composite filling welding method according to Example 1, the laser is used as CO2Gas laser, YAG solid laser, semiconductor laser or fiber laser; laser output is continuous laser or pulsed laser.

Example Embodiment

[0033]Example 3:

[0034]According to the hollow tungsten electrical arc coaxial laser composite filling welding method according to Example 1 or 2, the laser light is two-beam laser, the laser power ratio of the double beam laser is continuously adjustable, and the light beam is arranged continuously.

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 provides a hollow tungsten electrode arc coaxial laser composite wire filling welding method. The problems that in the hollow tungsten electrode arc wire filling welding process, the current density, temperature and plasma flow speed on the hollow tungsten electrode arc center axis are obviously reduced, consequently, the welding wire melting capacity is poor, and the deposition efficiency in the welding process is not high are solved. The method comprises the following steps: grinding or cleaning a to-be-welded workpiece, and fixing the ground or cleaned to-be-welded workpiece; and adjusting the relative position of laser and the hollow tungsten electrode axis, and enabling the laser to penetrate through the center of a hollow tungsten electrode. Paraxial wire feeding is adopted, the welding wire feeding angle and position are adjusted, and the laser directly irradiates the surface of a welding wire after penetrating through the hollow tungsten electrode; hollow tungsten electrode arc parameters and laser parameters are set; and a control switch is turned on, a hollow tungsten electrode arc is generated, and the laser is emitted from the center of the hollow tungsten electrode to an arc area and directly acts on the surface of the welding wire. The hollow tungsten electrode arc coaxial laser composite wire filling welding method is used.

Description

technical field [0001] The invention relates to a hollow tungsten electrode arc coaxial laser composite wire filling welding method. Background technique [0002] As one of the traditional arc welding technologies, tungsten inert gas welding (TIG) has the advantages of good arc stability, high reliability, high-quality welding, and excellent weld seams. , marine engineering and many other fields have a wide range of applications. However, because the carrying current of the tungsten electrode is limited, and the arc is easy to diffuse and not concentrated, the power density of TIG welding is restricted, the deposition speed is small, the welding speed is not high, and the production efficiency is low. With the development of modern manufacturing industry, there is an urgent demand for the automation and mechanization of TIG welding and high-quality and efficient arc welding process. [0003] Hollow tungsten arc means that on the basis of traditional tungsten inert gas shie...

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
IPC IPC(8): B23K26/348B23K26/60B23K9/167
CPCB23K9/167B23K26/348B23K26/60
Inventor 方迪生黄瑞生陈健杨义成孙谦梁晓梅邹吉鹏滕彬聂鑫蒋宝韩鹏薄
Owner HARBIN WELDING INST LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap