| abstract |
Article and method for manufacturing said article by ablation machining using laser beams (a) of an aromatic and / or amorphous polyamide material or (b) of a polymeric material including the basic aromatic rings and chains aliphatic polymers are repeated (provided that the aliphatic chains have at least 4 carbon atoms when the material is a polyester) and preferably in all cases UV laser rays are preferable, especially at wavelengths greater than 248nm from a KrF or XeCl laser cutter. Polyamides, polyetheresters and polyimides are more suitable than other materials for machining and can be useful for manufacturing heat conductive articles along a single axis when holes are drilled without burrs in laminated sheets of preferred polymers, said sheets being subsequently covered with metal. |