17887956. METHOD FOR JOINING AN ALUMINUM COMPONENT TO A STEEL COMPONENT USING A WELDED RIVET simplified abstract (GM GLOBAL TECHNOLOGY OPERATIONS LLC)

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METHOD FOR JOINING AN ALUMINUM COMPONENT TO A STEEL COMPONENT USING A WELDED RIVET

Organization Name

GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor(s)

Blair E. Carlson of Ann Arbor MI (US)

Hassan Ghassemi-armaki of Northville MI (US)

METHOD FOR JOINING AN ALUMINUM COMPONENT TO A STEEL COMPONENT USING A WELDED RIVET - A simplified explanation of the abstract

This abstract first appeared for US patent application 17887956 titled 'METHOD FOR JOINING AN ALUMINUM COMPONENT TO A STEEL COMPONENT USING A WELDED RIVET

Simplified Explanation

- Method for welding aluminum component to steel component using a weld tool with an electrode and arms - Rivet is arranged in a cavity next to steel component, with volume of rivet above cavity equal to annular volume between rivet stem and cavity inner surface - Pressure is applied on rivet using electrode, current is applied to weld rivet in cavity

Potential Applications

  • Automotive industry for joining aluminum and steel components
  • Aerospace industry for lightweight structural assemblies

Problems Solved

  • Joining dissimilar materials like aluminum and steel efficiently
  • Ensuring strong and reliable welds between different materials

Benefits

  • Strong and durable welds between aluminum and steel components
  • Efficient and effective method for joining dissimilar materials


Original Abstract Submitted

A method for welding includes arranging an aluminum component including a cavity adjacent to a steel component; and using a weld tool including an electrode and arms configured to engage a rivet, arranging the rivet in the cavity in contact with the steel component. A volume of a portion of the rivet located above of the cavity is approximately equal to an annular volume between a stem of the rivet and an inner surface of the cavity. The method includes applying pressure on the rivet using the electrode; and applying current to the electrode to weld the rivet in the cavity.

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