Laser polishing for topography management of accelerator cavity surfaces

Laser Assisted Chemical Mechanical Polishing for Planarization

Laser application for optical glass polishing

Fidel Vega Núria Lupón Jesús Armengol Cebrian Ferran Laguarta Universitat Politècnica de Catalunya Departament d’ Òptica I Optometria C/Violinista Vellsolà 37 08222 Terrassa, Spain E-mail: [email protected] Abstract. Rapid generation of large area polished optical surfaces by high-power CO2 laser irradiation is shown. Results focus on glasses with high expansion coefficients (a>1025/°C) conventio...

11.3 Polishing with Laser Radiation

The surface roughness of a part or product strongly influences its properties and functions. Among these can be counted abrasion and corrosion resistance, tribological properties, optical properties, haptics as well as the visual impression the customer desires. Therefore, in industrial manufacturing grinding and polishing techniques are widely used to reduce the roughness of surfaces. A new me...

Fluid jet polishing of optical surfaces.

We present a new finishing process that is capable of locally shaping and polishing optical surfaces of complex shapes. A fluid jet system is used to guide a premixed slurry at pressures less than 6 bars to the optical surface. We used a slurry comprising water and 10% #800 SiC abrasives (21.8 mum) to reduce the surface roughness of a BK7 sample from 350 to 25 nm rms and to vary the shape of a ...

Modeling and Optimization of Laser Polishing Process

Laser polishing is a finishing process based on melting material, with the objective of improving surface topography. Some operating parameters must be taken into consideration, such as laser power, feed rate, offset, and overlapping. Moreover, because of its dependence on the primary process, the initial topography has also an impact on the final result. This study describes a quadratic model,...