Better EMC honeycomb filters: 3D printed

Inconel, an extremely strong and corrosion-resistant nickel-chromium superalloy, opens up new possibilities for EMC shielding of ventilation openings with 3D printing technology. Traditional honeycomb filters are often vulnerable to mechanical damage, but with additive manufacturing these limitations are a thing of the past. 3D printing allows Parker Chomerics to realize robust, complex geometries without the structural weaknesses of conventional manufacturing methods.

With Inconel 3D printing, Parker Chomerics develops EMC honeycomb filters as a single homogeneous part, offering significant advantages:

• No secondary operations – faster production and fewer assembly steps
• Maintains filter effectiveness up to 24GHz, compared to traditional honeycombs whose performance drops off around 4GHz
• Improved ventilation performance – optimal airflow and shielding
• Reduced risk of Foreign Object Damage (FOD) – no burrs or weak parts
• Great design freedom – custom solutions without standard material restrictions

By no longer being bound to fixed material dimensions, engineers can precisely tailor the honeycomb structure to the desired shielding and ventilation requirements. For example, we can apply larger cells for improved airflow or develop custom shapes and sizes for specific enclosures. Even non-flat and complex surfaces are possible, making custom ventilation solutions within reach.

Inconel 3D printing combines structural integrity, design flexibility and enhanced EMC shielding in one advanced solution.