Invented in 1981, 3D printing transformed manufacturing by enabling the creation of complex geometries that traditional methods couldn't achieve. Suitable for non-reflective substance, materials like copper, aluminum, gold, and silver have been challenging to print with due to reflecting the infrared wavelengths from the lasers used to melt them. The reflections cause poor energy absorption and imprecise prints, affecting not only the quality of the final component but also damaging the printing equipment.

Overcoming these issues has become essential in high-precision industries like aerospace, electronics, and automotive manufacturing. One of the most innovative solutions that has emerged in the last few years is green laser technology. Operating at a 532 nm wavelength, green lasers are absorbed more efficiently by reflective metals compared to the infrared wavelengths of traditional lasers. This reduces reflection and allows for precise and controlled printing. The shorter wavelength also enhances focus capabilities, producing parts with higher resolution, superior surface quality, and wall thicknesses as fine as 0.05 mm. With component densities reaching upto 99.8%, this technology enables the production of intricate, high-quality components that meet demanding engineering standards.

Addireen, a Shenzhen-based company founded in 2023, is one of the leaders in green laser additive manufacturing. Leveraging nearly two decades of research in laser and 3D printing, Addireen has developed 532 nm high-power green fiber lasers that enable the printing of challenging metals like copper, aluminum, gold, silver, and tungsten. By introducing this technology into China’s manufacturing landscape, Addireen is helping industries overcome traditional 3D printing limitations, delivering high-quality reflectivemetal components for global applications.

Source of the picture: Addireen