Method and apparatus for the production of sized apertures

Details Method and apparatus for the production of sized apertures Method and apparatus for the production of sized apertures

B - Operations, Transporting

23

Q

341/100

B23Q 15/12 (2006.01) B23H 7/28 (2006.01) B23H 9/14 (2006.01)

Patent

CA 2001275

ABSTRACT TITLE: METHOD AND APPARATUS FOR THE PRODUCTION OF APERTURES A method and apparatus for the production of a plurality of apertures in one or more components, such as fuel injector nozzles of precisely controlled throughput, has the apertures produced by EDM. The apparatus com- prises an electrode (2), the lateral dimensions of which are less than those of the apertures to be produced and means (9, 11,) for producing relative orbital movement between the electrode (2) and the component during machi- ning of the latter to produce an aperture of the required lateral dimensions. The orbital movement is controlled by signals generated in response to measurement of the flow characteristics of an aperture already machined and comparison of such flow characteristics with the desired flow characteristics. The orbital movement may be pro- vided using piezo-electric transducers (9, 11) or servo- motors to convert the control signals into orbital mo- tion.

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