| 摘要 |
Apparatus for and method of clearing scrap from the opening of a workpiece in which a jet of fluid is directed over the opening, causing the scrap to be entrained in fluid streaming out of the opening to join the fluid jet. In a preferred embodiment of the invention, the fluid jet is pulsed in order to maximize its efficiency. In an alternative embodiment, a vacuum is used to collect the entrained scrap.
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