A processing drill for fiber-reinforced resin matrix composites

A fiber-reinforced resin and composite material technology, which is used in metal processing equipment, drill repairs, workpieces, etc., can solve problems such as burrs and fibers that cannot be completely cut, and achieve the effect of reducing bending deformation, reducing burrs, and improving control.

Active Publication Date: 2017-11-10
SHENYANG AEROSPACE UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the above problems, the present invention provides a processing drill for fiber-reinforced resin-based composite materials, which prevents burrs caused by fibers that cannot be completely cut off during the drilling process.

Method used

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  • A processing drill for fiber-reinforced resin matrix composites
  • A processing drill for fiber-reinforced resin matrix composites

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the accompanying drawings of the description.

[0012] Implementation Example 1

[0013] The invention provides a drill bit for processing fiber-reinforced resin-based composite materials, which includes two cutting edges, and is characterized in that: on the cutting edge of the drill bit, a plurality of semicircular grooves are arranged along the cutting edge. The diameter of the semicircular groove is equal to the diameter of the carbon fibers in the carbon fiber reinforced resin matrix composite. The distance between the centers of two adjacent semicircular grooves in the plurality of semicircular grooves is proportional to the diameter of the fibers in the fiber reinforced resin matrix composite material when the fiber content in the fiber reinforced resin matrix composite material is constant; The distance between the centers of two adjacent semicircular grooves in the circular groove is pro...

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Abstract

The invention provides a drill bit to eliminate a burr phenomenon caused by a large amount of fiber which is produced in the hole processing process of fiber reinforced resin matrix composite and difficult to cut off. Semi-circular grooves are formed along a main cutting edge of the drill bit; the diameter of each semi-circular groove is equal to the diameter d1 of fiber; the center distance d0 between every two semi-circular grooves is determined by the diameter d1 of the fiber and the fiber content p in the fiber reinforced resin matrix composite and satisfies the condition that d0 is equal to the sum of d1 and the product of p and d0. The fiber content p in the fiber reinforced resin matrix composite refers to the volume ratio of the fiber in the fiber reinforced resin matrix composite to the fiber reinforced matrix composite. The processing drill bit has the advantages that controllability on deformation of the fiber is improved, bending deformation of the fiber is reduced, the cutting efficiency of the fiber is improved, the burr phenomenon is reduced, and the service life of a cutter is prolonged.

Description

technical field [0001] The invention belongs to the field of material processing cutters, and in particular relates to a processing drill for 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 composite materials are prepared, in order to meet the shape and geometric size requirements of the parts, a series of mechanical processing is usually required. However, during the processing of carbon fiber composite materials and aramid fiber composite materials, due to the high strength and hardness of f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B51/00
CPCB23B51/00B23B2222/28B23B2226/275
Inventor 王奔王明海马书娟邵晨峰庄鑫
Owner SHENYANG AEROSPACE UNIVERSITY
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