Arc Welding & Directed Energy Deposition

Our Arc Welding Expertise

Since EWI’s founding in 1984, we have been enhancing and optimizing arc welding processes to the benefit of all manufacturing sectors.

Specializing in welding, cladding, repair, large-scale additive manufacturing, and more, EWI has developed and launched technologies for applications ranging from ship building and jet engines to oil and gas fabrication.

Because so many of our clients have unique goals, we focus on not only the deliberate application of arc welding technology but also on lesser-considered – but highly important – systemic details:

EWI is an industry leader in consumable and non-consumable electrode arc welding processes. Our expertise is broad, and we keep it that way with relentless innovation. We’ve developed specialties in progressive arc-based applications for complex metal builds and repairs, One such specialty is arc directed energy deposition (DED).

DED is a cutting-edge type of additive manufacturing using a robotic arm, an arc, electron-beam or laser-beam process, and either powder or wire for complex metal builds. For many applications, DED can be faster than other methods of additive manufacturing, and its accuracy reduces the need for machining after an additive part has been produced. At EWI, we can utilize CAD-to-path (robotic path planning) to build at multiple angles. This allows us to not only build solutions for new applications but also to use DED for making repairs and adjusting features.

Our Approach

In order to efficiently leverage the arc-based processes we know so well, we approach each project with careful attention to developing procedures and complying with applicable standards and codes. These are important aspects of our arc welding engagements – just as important as the technologies themselves.

We greet tough goals with excitement, leveraging cross-departmental strengths and staying engaged with our clients from idea to production. With this perspective, we’ve developed arc welding solutions for these unique applications:

• Formulating EWI DeepTIG^TM compounds to provide consistent GTAW joint penetration
• Applying reciprocating-wire-feed GMAW to components made of crack-sensitive material – surrounding heat-sensitive fluid and components – without the use of preheat
• Automating the repair of austenitic manganese steel trackwork components for the Federal Railroad Administration, increasing the service life of these expensive high-wear components by over 200% and reducing lost track time
• Investigating the effects of welding techniques, electrode chemistry, and shielding gas on GMAW stainless steel-clad layers for a fabricator of nuclear components and vessels

Identify. Develop. Implement.