초록

A manufacturing method is provided which utilizes a laser system. During an embodiment of this method, an object is arranged relative to a head of the laser system. A pattern of holes are formed in the object by ablating the object with a plurality of laser beams which are directed from the head.

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1. A manufacturing method utilizing a laser system, comprising: arranging an object relative to a head of the laser system, wherein the head includes a laser beam multiplexer; andconcurrently forming a pattern of holes in the object by ablating the object with a plurality of laser beams which are di

1. A manufacturing method utilizing a laser system, comprising: arranging an object relative to a head of the laser system, wherein the head includes a laser beam multiplexer; andconcurrently forming a pattern of holes in the object by ablating the object with a plurality of laser beams which are directed from the head, wherein at least some of the laser beams are incident with the laser beam multiplexer; andtranslating the laser beam multiplexer to adjust inter hole spacing of the pattern of holes;wherein the object is configured as at least a portion of an acoustic panel. 2. The manufacturing method of claim 1, wherein the pattern of holes is a rectangular array of holes. 3. The manufacturing method of claim 1, wherein the object comprises a fiber-reinforced composite. 4. The manufacturing method of claim 1, wherein the laser beam multiplexer redirects at least some of the laser beams such that the laser beams are directed on substantially parallel trajectories. 5. The manufacturing method of claim 1, further comprising: moving the head from a first position to a second position, wherein the pattern of holes is formed while the head is in the first position; andforming another pattern of holes in the object by ablating the object with a plurality of laser beams which are directed from the head while the head is in the second position. 6. A manufacturing method utilizing a laser system, comprising: arranging an object relative to a head of the laser system;forming a pattern of apertures in the object by ablating the object with a plurality of laser beams which are directed from the head;wherein the head includes a laser beam multiplexer which redirects at least some of the laser beams such that the laser beams are directed on substantially parallel trajectories; andtranslating the laser beam multiplexer to adjust inter hole spacing of the pattern of holes. 7. The manufacturing method of claim 6, wherein the laser beam multiplexer comprises a prismatic mirror with which at least some of the laser beams are incident. 8. The manufacturing method of claim 6, wherein the pattern of apertures comprises a pattern of four holes. 9. The manufacturing method of claim 6, wherein the pattern of apertures comprises a pattern of nine holes. 10. The manufacturing method of claim 6, wherein the object comprises a fiber-reinforced composite. 11. The manufacturing method of claim 6, wherein the object is configured as at least a portion of an acoustic panel for a turbine engine. 12. The manufacturing method of claim 6, wherein the laser system includes a plurality of lasers, each laser generates a respective one of the laser beams, and each laser beam ablates the object to foul′ a respective one of the apertures in the pattern. 13. The manufacturing method of claim 6, wherein the pattern of apertures is a rectangular array of holes. 14. The manufacturing method of claim 1, wherein a first of the laser beams is incident with a first surface of the laser beam multiplexer; anda second of the laser beams is incident with a second surface of the laser beam multiplexer that is positioned opposite the first surface. 15. The manufacturing method of claim 1, wherein the laser system includes a plurality of lasers, and each of the lasers generates a respective one of the laser beams;a first of the lasers is configured to direct a respective one of the laser beams onto a first side of the laser beam multiplexer; anda second of the lasers is configured to direct a respective one of the laser beams onto a second side of the laser beam multiplexer that is opposite the first side. 16. The manufacturing method of claim 1, wherein the laser system includes a plurality of lasers, each of the lasers generates a respective one of the laser beams;an end portion of an optical fiber of a first of the lasers is positioned on a first side of the laser beam multiplexer; andan end portion of an optical fiber of a second of the lasers is positioned on a second side of the laser beam multiplexer.