Method of machining composites

Details Method of machining composites Method of machining composites

1996-11-06

1999-08-10

Briggs, William R.

Gear cutting, milling, or planing

Milling

Process

408 1R, B23C 900, B23B 3500

Patent

active

059348470

ABSTRACT:
There is now provided a method of machining and shaping a through opening in a fiber-reinforced composite material starting from a preformed hole. At least one rotation symmetrical milling body with a substantially smaller diameter than that of the preformed hole is placed in that hole and the opening is machined and shaped by the milling body partly rotating around its own axis, partly by a translational movement relative to the edge of the opening. According to the method, the fiber-reinforced material is oriented in such a way that the axis of rotation of the milling body is essentially perpendicular to the longitudinal direction of the fibers at the edge of the opening. The size and/or form of the finished opening differs significantly from that of the preformed hole. The radial spread of the damages and/or the defects define a lower limit for the amount of material removed.

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"Machining Glass--Reinforced Plastic with Cemeted Carbide Tools"pp. 91-93 American Machinist Mar. 29, 1945 copy in 409-131.

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