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Drilling-reaming-dimpling integrated cutting tool

A technology for drilling, reaming, countersinking and cutting tools, which is used in drilling tool accessories, tools for lathes, and drilling, etc., can solve the problems of poor processing quality, short tool life, low hole-making efficiency, etc. Machining quality and burr suppression effect

Active Publication Date: 2016-06-08
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at problems such as poor processing quality, low hole making efficiency and short tool life which are easy to occur in the lamination structure drilling of existing cemented carbide tools, and provides a tool which can improve the processing efficiency, ensure the processing quality and improve the durability of the tool. Drilling, reaming and countersinking integrated tool

Method used

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  • Drilling-reaming-dimpling integrated cutting tool
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  • Drilling-reaming-dimpling integrated cutting tool

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Embodiment Construction

[0018] Such as figure 1 As shown, the integrated drilling, reaming and spot-sinking tool of the present invention is provided with a drilling part 1 , a reaming part 2 , a spot-sinking part 3 and a shank part 4 in sequence on the cutter body. Carbide is used as the matrix material, and PCD (polycrystalline diamond) is used as the working cutting edge material, which ensures the rigidity and strength of the tool matrix, and at the same time makes the cutting edge have high hardness and wear resistance, and improves the service life of the tool.

[0019] Drilling part 1 is composed of one chisel edge, two main cutting edges and two minor cutting edges. Considering the difficult machining of PCD material, the main cutting edge of the drill is set as a straight cutting edge, and the rake angle and back angle of each point on the cutting edge are The angles are all equal, the rake angle is 23°, and the relief angle is 13°, so as to reduce the cutting force and the friction between ...

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Abstract

The invention claims a drilling-reaming-dimpling integrated cutting tool. A drilling part, a reaming part, a dimpling part and a handle part are sequentially arranged on a cutter body, and the distance between the reaming part and the dimpling part is 6-8mm; the drilling part is composed of a chisel edge, two main cutting edges and two secondary cutting edges; the main cutting edge is a straight line cutting edge, the rake angles and the relief angles of the points on the edge are the same, and a front tool face is provided with a chip breaker; the reaming part is composed of two spiral cutting edges; the dimpling part is composed of two spiral cutting edges; each part of the base material is hard alloy, and the working part of each cutting edge adopts PCD. Through the configuration of the cutting tool structure angel and the material, the drilling force of drilling aluminum alloy, titanium alloy and aluminum-titanium laminate is effectively reduced, the cutting tool abrasion is retarded, the burr production is inhibited, the hole shape precision and surface roughness of a processing hole can be improved, the processing quality is guaranteed, the processing efficiency is improved, and the service life of the cutting tool is prolonged.

Description

technical field [0001] The invention relates to an integrated drilling, reaming and countersinking tool for machining aluminum alloy or titanium alloy laminated structure drilling, which can realize the integrated drilling, reaming and countersinking of laminated structures, and belongs to the technical field of special tools for hole processing. Background technique [0002] With the rapid development of the aerospace field, the requirements for material performance are getting higher and higher. Traditional single materials cannot meet the development needs of the modern aviation industry. They are often replaced by laminated structures composed of aluminum alloys, titanium alloys, composite materials and ceramics. The performance advantages of their respective materials are more and more widely used in the aerospace field. However, in the hole-making process of laminated structures, due to the differences in properties of different materials, the existing cemented carbide...

Claims

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Application Information

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IPC IPC(8): B23B51/08
CPCB23B51/08B23B2222/28B23B2226/315B23B2251/043B23B2251/48
Inventor 孙杰朱兆聚刘凯国凯
Owner SHANDONG UNIV
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