Method for production of safety/rupture discs

摘要

A method for production of safety/rupture discs comprises the steps providing a foil element, selecting a wavelength for a laser beam of a pulse laser within a range of between 800 nanometers and 1800 nanometers, selecting a pulse repetition rate for the laser beam within a range of between 15 KHz and 800 KHz, selecting a pulse duration for the laser beam less than 10 nanosecond and ablating at least one non-through cut in the foil element by directly applying said laser beam to the foil element to remove material from the foil element thereby obtaining a safety/rupture disc.