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Low-Power Cold Weld Joining for In-Space Manufacturing

Engineering & Physical Sciences
Industrial Processes & Manufacturing
Mobility
Aerospace
Welding/Joining
College
College of Engineering (COE)
Researchers
Lui, Edward
Daehn, Glenn
Horack, John
Licensing Manager
Zinn, Ryan
614-292-5212
zinn.7@osu.edu

T2025-209

The Need
Current methods for joining metal components in space environments are often complex, energy-intensive, and can compromise the integrity of the materials due to heat-affected zones. There is a need for a reliable, low-power, and safe solution that can create strong metal bonds without causing significant plastic deformation or thermal damage.

The Technology
Our novel cold-welding technology, developed by OSU engineering faculty and students, utilizes Argon sputtering and electromagnetics to enable reliable, heat-free bonds. Argon sputtering is used to clean and flatten metal surfaces. A custom EM hammer is used to generate a strong, brief magnetic field to actuate a magnetic plunger, delivering precise, high-force contact between components to cold weld. This process ensures clean, strong bonds without heat-affected zones, making it ideal for in-space manufacturing and assembly.

Commercial Applications
• In-space manufacturing of large structures.
• Assembly of components in low Earth orbit.
• Repair and maintenance of spacecraft and satellites.

Benefits/Advantages
Low Power Consumption: Efficient use of energy resources.
Minimal Plastic Deformation: Preserves the integrity of the materials.
No Heat-Affected Zone: Prevents thermal damage to metals.
Safety: Reduces risks associated with traditional welding methods.
Simplicity: Does not require sophisticated equipment, facilitating ease of use in space environments.

Provisional patent application filed