A variety of titanium alloy is currently used in eyewear to provide users with a wearing comfort, flexible beta titanium and Nickel Titanium alloy with shape memory well known among them. They were developed for products other than eyewear and none of them offer the same characteristics as Excellence Titan does. Titanium in general is not a very flexible material, it was also developed for use in products other than eyewear due to its lightness, strength and durability and the fact that it is completely nickel free.
In the course of continuing improvement of various techniques such as processing of titanium to produce eyewear with better wearing quality, The Charmant Group had the inspiration that the ideal optical frame could only be realized by using the most suitable material for such product. That meant that the material itself needed to be developed.
After an eight-year joint research journey with Tohoku University, the world authority of Metallurgical Research, having aimed to develop the ideal material, reached new heights in eyewear technology with the creation of Excellence Titan.
With this revolutionary material the ideal benefit, an embracing gentle touch and long lasting wearing comfort was realized for eyewear.
What has made the ideal benefits of Excellence Titan and eyewear come together was the precision laser welding technique, a cutting edge technique established by our five years of collaboration with the Joining & Welding Research Institute of Osaka University and the Fukui Prefecture Industrial Support Center.
The precision laser welding technique, which was born from another collaboration is able to join extremely fine parts directly, using no medium material that could cause possible breakage. It is an ideal solution in eyewear manufacturing that requires highly precise processing capability. It gives a high-strength welding and beautiful finish to fine eyewear, without causing any problems. The typical method would cause problems such as the loss of the metals original characteristics.
It can precisely weld together metal pieces which are less than 1mm