Machining score lines in a rupture disc using laser machining
AssigneeContinental Disc Corporation
InventorsRobert M. Mozley, Gabriel Hernandez
Life of this patent
Estimating the term…
Abstract
A method of forming a score line in a rupture disc using a laser is provided, wherein the method includes selecting a wavelength for the laser that maximizes absorption of the laser radiation by the disc material, selecting a pulse duration for the laser that maximizes a peak power of the laser, selecting a pulse repetition rate for the laser that reduces a heat affected zone of the rupture disc during ablation, and selecting the speed of relative motion between the laser and the rupture disc. The score line is ablated in the rupture disc using the laser to remove material from the rupture disc as vapor without melting or oxidizing disc material adjacent the material being removed.
Claims36
A method of forming a score line in a rupture disc using a laser, the method comprising:
- determining score line requirements for the rupture disc;
- selecting a laser to achieve the score line requirements for the rupture disc;
- and
- ablating the score line in the rupture disc using the laser to remove material from the rupture disc.
A method of forming a score line in a rupture disc using a laser, the method comprising:
- determining score line requirements for the rupture disc;
- adjusting parameters of the laser to achieve the score line requirements for the rupture disc;
- and
- ablating the score line in the rupture disc using the laser to remove material from the rupture disc.
A method of forming a score line in a rupture disc using a laser, the method comprising:
- determining score line requirements for the rupture disc;
- selecting a laser for achieving the score line requirements;
- adjusting parameters of the laser to achieve the score line requirements;
- and
- ablating the score line in the rupture disc using the laser to remove material from the rupture disc.
A method of forming a score line in a rupture disc using a laser, the method comprising:
- determining the rupture disc material to be scored;
- determining the score line depth;
- determining the score line geometry;
- determining the score line tolerances;
- selecting a wavelength for the laser that maximizes absorption of the laser radiation by the disc material;
- selecting a pulse duration for the laser that maximizes a peak power of the laser;
- selecting a pulse repetition rate for the laser that reduces a heat affected zone of the rupture disc during scoring;
- selecting the focal spot diameter of the laser;
- selecting the optical output power of the laser;
- selecting the speed of relative motion between the laser and the rupture disc for each laser pass;
- selecting the number of laser passes;
- and
- ablating the score line in the rupture disc to remove material from the rupture disc.
Dependencies are inferred from the claim text.