METHOD AND APPARATUS FOR ABRASIVE STREAM PERFORATION

摘要

An abrasive stream perforation (ASP) system and method for forming a plurality of perforations through a composite part. The ASP system may include a compressed air source, a particulate source, a valve, nozzles, and a positioning device. The valve is actuatable between an open state and a closed state. The compressed air and particulate are simultaneously forced through the valve in its open state and then forced through the nozzles and against the surface of the composite part, forming the perforations through the composite part. The support frame maintains the nozzles in a spaced relationship to each other and a selected distance away from the composite part. The positioning device is fixed to the support frame and actuates the support frame relative to the surface of the composite part for proper positioning of the nozzles and the resulting perforations.

主权项

1. A method of forming a plurality of perforations through a part, the method comprising:
fluidly coupling at least one valve to an air or gas pressure source; fluidly coupling the at least one valve to at least one particulate source; fluidly coupling the at least one valve to a plurality of nozzles; regulating the at least one valve such that a flow from the air or gas pressure source urges particulate from the particulate source through the nozzles; and directing the nozzles at a surface of the part that is uncovered by a maskant or stencil.