Laser hardening of Toolox® is a very efficient method of achieving a high surface hardness with a relatively large thickness. Depending on the application, the hardened layer can reach 0.2 to 2 mm.
Laser hardening of Toolox® 44 gives exceptionally good results due to its high yield strength. It improves the lifetime of machine components working under highly challenging conditions. SSAB uses laser hardened Toolox® 44 for cutting Hardox® and Strenx® steel plates.
Laser hardened surfaces have the further advantage of being very smooth. This reduces friction and the risk for material sticking to the surface. To further enhance the hardness of the surface, carbon powder can be used to cover the metal surface during the process. In this way, Toolox® can reach a surface hardness as high as 800 HV. For Toolox® 33, 700 HV can be obtained.