Laser transparent Compounds

With increasing use of plastics in automotive, electrical, medical and industrial markets, precise, fast, flexible and clean joining technique of the highest quality standard is required.

Laser welding is one method of joining plastic parts that offers a precise weld with a precise energy input, lower thermal delay, high weld strengths and welding of three-dimensional geometries in a single process step. With more and more miniaturization of components and their increasingly complex geometries, a high quality weld seam can be achieved by a relative easy laser welding process as compared to conventional joining techniques.

To join two parts by a laser welding process, one of them has to be laser transparent and the other laser absorbing. The laser transparent part can be even black or colored, but not carrying minerals.

Further, AKRO-PLASTIC measures the laser transparency with a laser having a 980 nm wavelength during the production (LPKF TMG 3) at regular intervals and states the laser transparency value on the certificate of analysis (COA) of its laser transparent compounds.