Encapsulating apparatuses for use with welding systems and processes

The encapsulating apparatus addresses the inefficiency of shielding gas consumption in welding by encapsulating the weld pool, reducing gas flow rates and ensuring high-quality deposits, suitable for various industrial applications.

WO2026128352A1 Publication Date: 2026-06-18EDISON WELDING INSTITUTE INC
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
EDISON WELDING INSTITUTE INC
Filing Date
2025-12-08
Publication Date
2026-06-18

AI Technical Summary

⚠Technical Problem

Existing welding technologies face challenges in reducing shielding gas consumption, particularly in gas shielded consumable electrode arc welding processes like GMAW, GMA, and DED, which are inefficient and time-consuming due to the need to remove heavy slag and spatter, leading to increased costs and time in automated processes.

⚗Method used

An encapsulating apparatus is designed to encapsulate the welding torch nozzle, preventing atmospheric gases from entering the weld pool by using a high-conductivity material like copper, with adjustable positioning and cooling channels, allowing for reduced shielding gas flow rates while maintaining weld quality.

🎯Benefits of technology

The encapsulating apparatus significantly reduces shielding gas consumption by up to 10 times, enabling high-quality, spatter-free deposits and efficient additive manufacturing processes, suitable for defense, navy, and aerospace applications.

✦ Generated by Eureka AI based on patent content.

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Abstract

A device for use with welding systems and processes, comprising an encapsulating apparatus configured to encapsulate a welding torch nozzle at the tip thereof, wherein the apparatus includes an upper body portion which mounts on the nozzle; and a lower body portion which extends beyond the tip of the nozzle toward a work surface; and wherein during a welding process the apparatus encapsulates a welding electrode passing through the tip of the nozzle, an arc generated by the welding torch, and a weld pool surface directly above the work surface during deposition of the weld pool, and wherein the encapsulating apparatus prevents atmospheric gases from entering the weld pool during the welding process and reduces the shielding gas requirements compared to current gas shielded torch apparatuses, and wherein derivatives of the lower body portion are configured to accommodate unique welding grooves, joint designs, and DED additive manufacturing work piece geometries.
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