Bivoj

Bivoj …

When everyone says this name, Czech history comes to mind. But this name is borne by an in laser entered in the Guinness Book of Records for its performance. He belongs to the HILASE company, which in Dolní Břežany researches everything related to laser technology.

At the HiLASE center, they are concentrating on the experimental development of a new generation of diode-pumped lasers with high average power and high repetition frequency. Thanks to the breakthrough technical parameters, their lasers are truly unique and you would not find their equivalents in any other laboratory in the world. Thanks to the use of the most modern diode pumping technologies, HILASE lasers are noticeably more powerful, more compact, more stable and easier to maintain than classic pulsed lasers.

On Wednesday, March 13, the annual Czechimplant members’ meeting took place here. And what were the impressions? More than great. Even though it is a distant technology for me, it has become close at first glance. This also applies to Nadca 207. As is known, stress from thermal fatigue is induced into the surface of the insert during high pressure casting, which must be periodically relaxed. It doesn’t matter if thermally or vibrationally. Even after this relaxation, there is still tensile stress on the surface. The Bohler company offers a final process under the brand name ABP® or ABPplus®, where zero or even compressive stresses can be achieved through a special process of sandblasting the die.

Bivoj, however, does it differently. Although it does not melt the surface of the mold with its high energy, it brings so much energy into it that tensile stresses are transformed into compressive stresses. The strengthening of the material with a shock wave, the so-called Laser Shock Peening, is a method that could also help with the restoration of die-casting tools, dies, etc.

However, Bivoj can also be used for forming special alloys, especially in the aviation industry. The Laser Metal Forming method is based on the fact that we induce such a structure of tension in the material that it induces the deformations we need for our desired shape.

But since the basic goal was the Czech implant and medical issues, the use of laser technology is also in the field of implants and biocompatibility.

And so, thanks to Jana Vykoukalová, the chairman of the board of directors of the CZECHIMPLANT cluster, z. s., I managed to see something that is otherwise hidden from the public eye…

Thanks Jana

Jiří Stanislav

March 15,   2024