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A drill for processing fiber-reinforced resin-based composite materials

A fiber-reinforced resin and composite material technology, applied in the field of material processing, can solve the problems of difficult cutting of fibers and burrs, and achieve the effects of reducing bending deformation, removing burrs, and reducing burrs.

Active Publication Date: 2017-06-30
SHENYANG AEROSPACE UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a drill bit for processing fiber-reinforced resin-based composite materials, so as to solve the problem of burrs caused by a large number of fibers that are difficult to cut during the hole-making process of fiber-reinforced resin-based composite materials

Method used

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  • A drill for processing fiber-reinforced resin-based composite materials
  • A drill for processing fiber-reinforced resin-based composite materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A drill bit for processing fiber-reinforced resin-based composite materials, which includes two cutting edges, and a plurality of diamond particles are arranged on the cutting edges, and the plurality of diamond particles are arranged equidistantly along the cutting edges. The diamond particles are arranged starting from the outer edge of the cutting edge at the largest diameter of the drill bit. The particle size of the diamond particles is equal to the fiber diameter in the fiber reinforced resin matrix composite material to be processed. The center distance, carbon fiber diameter and fiber content of the two adjacent diamond particles satisfy: d0=(2+1 / p)d1; where d0: center distance; d1: carbon fiber diameter; p: fiber reinforced resin matrix composite material The ratio of the volume of carbon fibers to the volume of fiber-reinforced resin matrix composites. The plurality of diamond particles are arranged on the cutting edge by welding.

[0017] The traditional dr...

Embodiment 2

[0021] A drill bit for processing fiber-reinforced resin-based composite materials, which includes two cutting edges, and a plurality of diamond particles are arranged on the cutting edges, and the plurality of diamond particles are arranged equidistantly along the cutting edges. The diamond particles are arranged starting from the outer edge of the cutting edge at the largest diameter of the drill bit. The particle size of the diamond particles is equal to twice the diameter of the fibers in the fiber-reinforced resin-based composite material to be processed. The center-to-center distance, carbon fiber diameter, and fiber content of the two adjacent diamond particles satisfy: d0=(2+1 / p)d1; where d0: center-to-center distance; d1: carbon fiber diameter; p: fiber-reinforced resin-based composite The ratio of the volume of fibers in the material to the volume of the fiber-reinforced resin matrix composite. The plurality of diamond particles are arranged on the cutting edge by e...

Embodiment 3

[0026] A drill bit for processing fiber-reinforced resin-based composite materials, which includes two cutting edges, and a plurality of diamond particles are arranged on the cutting edges, and the plurality of diamond particles are arranged equidistantly along the cutting edges. The diamond particles are arranged starting from the outer edge of the cutting edge at the largest diameter of the drill bit. The particle size of the diamond particles is equal to 1.5 times the fiber diameter in the fiber reinforced resin matrix composite material to be processed. The center-to-center distance, carbon fiber diameter, and fiber content of the two adjacent diamond particles satisfy: d0=(2+1 / p)d1; where d0: center-to-center distance; d1: carbon fiber diameter; p: fiber-reinforced resin-based composite The ratio of the volume of fibers in the material to the volume of the fiber-reinforced resin matrix composite. The plurality of diamond particles are arranged on the cutting edge by an i...

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Abstract

A drill bit used for processing a fiber-reinforced resin matrix composite is characterized in that diamond or cubic boron nitride particles are arranged on a cutting blade of the drill bit in the direction of the cutting blade in a welding or electroplating or embedding mode at equal intervals, and the granularity of the particles is larger than or equal to the diameter of fibers in the fiber-reinforced resin matrix composite to be processed but smaller than or equal to two times the diameter of the fibers to be processed; the center distance d0 between the particles, the fiber diameter d1 and the content p of the fibers in the fiber-reinforced resin matrix composite meet the equation that d0=(2+1 / p)d1. The drill bit used for processing the fiber-reinforced resin matrix composite has the advantages that as the diameter of the fibers is matched with the granularity of the particles, the fibers can enter the space between every two adjacent particles in the processing process, and therefore control over the deformation of the fibers is improved, bending deformation of the fibers is reduced, the cutting-off efficiency of the fibers is improved, and the burr phenomena are reduced. Meanwhile, the distance between the particles is regulated according to the content of the fibers in the fiber-reinforced resin matrix composite, and the service life of the drill bit is prolonged while burrs are effectively removed.

Description

technical field [0001] The invention belongs to the field of material processing research, in particular to a drill bit for processing fiber-reinforced resin-based composite materials. Background technique [0002] Fiber-reinforced resin-based composites are more and more widely used in the industrial field. Common fiber-reinforced resin-based composites include glass fiber-reinforced resin-based composites, carbon fiber-reinforced resin-based composites, and the like. At present, commonly used fiber materials include glass fiber, carbon fiber, aramid fiber, boron fiber, etc. [0003] After the fiber-reinforced resin-based composite materials such as carbon fiber-reinforced resin-based composite materials are prepared, a series of mechanical processing is usually required to meet the shape and geometric size requirements of the parts. However, during the processing of carbon fiber-reinforced resin-based composite materials, aramid composite materials, etc., due to the high ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B51/00
CPCB23B51/00B23B2226/125
Inventor 王奔印文典郑耀辉李晓鹏王明海
Owner SHENYANG AEROSPACE UNIVERSITY
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