Process for forming functional hollow portions in plastic or mineral materials

摘要

The method involves forming functional cavities (1) in plastic and mineral materials by perforation, stamping and by using laser, such that the functional cavities are formed surrounded by a base material. Connection channels (11) and retaining ribs are then formed to connect the functional cavities and to hold the base material surrounding the functional cavities. An outer covering (2) is arranged and firmly connected to cover the functional cavities and the base material.