Method for producing fiber-reinforced composite member with connecting holes, and structural member for aircrafts constituted by such composite members
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United States of America Patent
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Jan 25, 2011
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N/A
app pub date -
Nov 20, 2007
filing date -
Nov 24, 2006
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Abstract
A method for producing a fiber-reinforced composite member with connecting holes, comprising boring a cured molding of prepregs of reinforcing fibers impregnated with a matrix resin to form the connecting holes, using a burnishing drill comprising two or more tapered tip blades, two or more circumferential blades extending continuously from the tip blades to a shank, and chip-discharging grooves extending from the tip blades to the shank.
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