A METHOD AND A TOOL FOR PRODUCING HOLES IN FIBRE REINFORCED COMPOSITES BY MOVING THE TOOL ECCENTRICALLY

摘要

The invention relates to a method for producing a hole in a workpiece consisting of a fibre-reinforced composite material. The central axis of the hole shall pass through a predetermined point onthe surface of the workpiece and shall also be oriented in a certain determined direction in relation to the longitudinal directions of the fibres in the immediate vicinity of said point. The material is machined simultaneously in both an axial and a radial sense by causing the tool to describe an axial motion and to rotate not only about its own axis (5), but also eccentrically about the central axis.