Method for producing fiber-reinforced composite member with connecting holes, and structural member for aircrafts constituted by such composite members
US7875220B2 · kind B2 · utility
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9References
6Claims
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Key dates
| Filing date | Nov 20, 2007 |
| Grant date | Jan 25, 2011 |
| Priority date | — |
| Expiry date | Aug 16, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24322
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.