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

Resistive welding electrode and method for spot welding steel and aluminum alloy workpieces with the resistive welding electrode

A technology of resistance welding and aluminum alloy, which is applied in the direction of resistance welding equipment, welding/welding/cutting items, welding equipment, etc., which can solve the problems of long-time placement and high consumption cost

Active Publication Date: 2016-10-26
GM GLOBAL TECH OPERATIONS LLC
View PDF11 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, mechanical fasteners take longer to put in place and have high expendable costs compared to spot welding

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
  • Resistive welding electrode and method for spot welding steel and aluminum alloy workpieces with the resistive welding electrode
  • Resistive welding electrode and method for spot welding steel and aluminum alloy workpieces with the resistive welding electrode
  • Resistive welding electrode and method for spot welding steel and aluminum alloy workpieces with the resistive welding electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0059] The resistance welding electrodes described below include at least a weld face (which may be smooth or contain raised surface features) composed of a refractory base material exhibiting an electrical conductivity less than or equal to that specified by the International Standard for Annealed Copper ( 65% of the conductivity of commercially pure annealed copper as defined by the IACS). In other words, the refractory base material has less than 3.8×10 7 S / m conductivity. Some examples of resistance welding electrodes are Figure 1-3 shown. When used for resistance spot welding workpiece stacks (which include aluminum alloy workpieces, which are placed in overlapping contact with steel workpieces, examples of which are in Figure 5-8 ), the resistance welding electrode contacts and presses against the aluminum alloy workpiece, while the second welding electrode contacts and presses against the steel workpiece. In addition, if Figure 12-13 As shown and described below...

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
electrical conductivityaaaaaaaaaa
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a resistive welding electrode and method for spot welding steel and aluminum alloy workpieces with the resistive welding electrode. A resistive welding electrode includes at least a weld face constructed of a refractory-based material that exhibits an electrical conductivity that is less than or equal to 65% of the electrical conductivity of commercially pure annealed copper as defined by the International Annealed Copper Standard (IACS). A method of using the resistive welding electrode to resistance spot weld a workpiece stack-up that includes an aluminum alloy workpiece and steel workpiece that overlap and contact each other at a faying interface is also disclosed.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application No. 62 / 139197, filed March 27, 2015, which is hereby incorporated by reference in its entirety. technical field [0003] The technical field of the present disclosure relates generally to resistance spot welding, and more specifically, to resistance spot welding aluminum alloy workpieces and steel workpieces. Background technique [0004] Resistance spot welding is a process used by many industries to join two or more metal jobs together. For example, the automotive industry often uses resistance spot welding to weld prefabricated of metal workpieces joined together. A number of spot welds are often formed along the peripheral edge or some other joining area of ​​the metal workpiece to ensure that the part is structurally sound. Although spot welding is commonly used to join together similarly constructed metal workpieces (such as steel-steel, and al...

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): B23K11/30B23K35/04B23K11/11B23K11/20B23K103/20
CPCB23K11/3009B23K11/20B23K35/0205B23K35/32B23K2103/20B23K11/3018B23K11/115B23K35/0261
Inventor D·R·西勒B·E·卡尔森M·J·卡拉国利斯D·P·凯利
Owner GM GLOBAL TECH OPERATIONS LLC
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