Optomec has developed a pure copper additive manufacturing (AM) process using the company’s LENS directed energy deposition (DED) systems.

 .

‘Pure copper is a big challenge for DED systems because of its high reflectance.’ said Tom Cobbs, product manager for Optomec LENS systems. ‘The infrared wavelengths on most standard, laser-based AM systems are not readily absorbed by copper, making it difficult to establish a melt pool as the laser energy is reflected back into the source, causing all kinds of havoc.’

 .

According to Cobbs, the new process is virtually immune to any back reflection, so the laser can operate at full power on reflective surfaces and includes process parameters to account for thermal conductivity differences and large changes in absorption. Optomec says that pure copper 3D printed parts are suitable for heat exchangers in a variety […]

Click here to view original web page at www.materialstoday.com