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

Low-power resistance spot-welding process adopting multi-end electrode

A terminal electrode, resistance spot welding technology, applied in resistance welding equipment, welding equipment, manufacturing tools, etc., can solve the problems of large welding penetration, unstable single-point welding, welding spatter, etc., to eliminate position changes and stabilize And the effect of high-quality resistance spot welding connection and stable position relationship

Pending Publication Date: 2021-09-07
HENAN AEROSPACE HYDRAULIC & PNEUMATIC TECH
View PDF10 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a low-power multi-terminal electrode resistance spot welding welding process, which solves the single-point welding instability and The excessive instantaneous welding heat input leads to problems such as welding spatter and large welding penetration. Multi-terminal welding electrodes are simultaneously pressurized and welded at multiple points to realize efficient, stable and high-quality resistance spot welding connections of thin-walled parts and filter parts.

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
  • Low-power resistance spot-welding process adopting multi-end electrode
  • Low-power resistance spot-welding process adopting multi-end electrode
  • Low-power resistance spot-welding process adopting multi-end electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] The invention provides a low-power multi-terminal electrode resistance spot welding welding process, which includes the following specific steps: Step S1: cleaning the welding area of ​​the thin-walled gasket 1 and the filter screen 3, first performing mechanical polishing to remove the thin-walled gasket and After polishing the oxide film on the filter, use absolute ethanol or acetone to clean the welding area to ensure that the welding area is clean be...

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 low-power resistance spot-welding process adopting a multi-end electrode. The low-power resistance spot-welding process adopting the multi-end electrode is used for solving the problems of welding spatter, high welding penetration rate and the like caused by unstable single-point welding and excessive instantaneous welding heat input in an existing resistance spot-welding connection technology for thin-wall parts and filter screen parts. The low-power resistance spot-welding process adopting the multi-end electrode comprises the steps of cleaning and assembling for a welding test piece, pressing before welding, preheating before welding, welding, pressure maintaining after welding and the like, wherein the multi-end electrode is used for welding the welding test piece, the welding process of pressurizing, preheating, welding and maintaining is adopted, the whole welding process lasts for about 5 ms, the time of heat accumulation in a welding pressing process is shortened, the welding efficiency is increased, and the stability of product assembling is improved; and the spatter generated in the welding process can be effectively avoided, collapse, welding penetration and the like in the welding process are greatly reduced, resistance spot-welding connection for thin-wall filter screens and gaskets can be stably, efficiently and excellently realized, and a new technological reference is provided for welding for thin-wall filter screen parts.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a low-power multi-terminal electrode resistance spot welding welding process. Background technique [0002] Resistance spot welding is an efficient and stable pressure welding technology, which has many advantages such as high efficiency, stability, low consumption, environmental protection and easy automation. It can realize effective welding of non-ferrous metals such as aluminum, magnesium, copper and their alloys. It is used in aerospace, Rail transit and many other industries have been widely used. The heat required for resistance spot welding mainly comes from the heat generated by the Joule effect after electrification between the workpieces to be welded. The welding heat is mainly directly related to the welding current and welding time, that is, "Q=I 2 RT", the welding nugget formed during the welding process first starts at the point-like contact point after the elect...

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): B23K11/11
CPCB23K11/11
Inventor 靳少龙张高鸿冯茜姜银松付静杜翠杰叶卫林高蒙邵真贵李鹏飞
Owner HENAN AEROSPACE HYDRAULIC & PNEUMATIC 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