Precise hole machining method for glue-containing laminated material

A hole processing method and a technology of laminated materials, which are applied in the field of aerospace parts preparation, can solve the problems of poor hole position accuracy and aperture accuracy, and meet the requirements of ensuring correctness and processing efficiency, ensuring position accuracy and aperture accuracy , Guarantee the effect of hole processing quality

Inactive Publication Date: 2021-11-02
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hole position accuracy and hole diameter accuracy are still not good

Method used

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  • Precise hole machining method for glue-containing laminated material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] see figure 1 , a method for fine hole processing of glue-containing laminated materials, comprising the following steps:

[0030] a. First use a large-diameter drill to drill the initial holes of the upper material and the middle adhesive layer material in the laminated material, and then use a small-diameter drill to drill the bottom hole of the bottom material;

[0031] b. Then use the boring tool to pass through the upper material, the middle rubber layer material and the bottom material in sequence, respectively expand the aperture of the initial hole and the bottom hole, and then use the reamer for grinding;

[0032] c. Finally, use a boring tool to enlarge the hole diameter of the initial hole of the upper material and the middle rubber layer material and the bottom hole of the bottom material to complete the fine hole processing of the glue-containing laminated material.

[0033] "a. First use a large-diameter drill to drill the initial holes of the upper materi...

Embodiment 2

[0035] see figure 1 , a method for fine hole processing of glue-containing laminated materials, comprising the following steps:

[0036] a. First use a large-diameter drill to drill the initial holes of the upper material and the middle adhesive layer material in the laminated material, and then use a small-diameter drill to drill the bottom hole of the bottom material;

[0037] b. Then use the boring tool to pass through the upper material, the middle rubber layer material and the bottom material in sequence, respectively expand the aperture of the initial hole and the bottom hole, and then use the reamer for grinding;

[0038] c. Finally, use a boring tool to enlarge the hole diameter of the initial hole of the upper material and the middle rubber layer material and the bottom hole of the bottom material to complete the fine hole processing of the glue-containing laminated material.

[0039] In the step a, the large-diameter drill bit drills out the rubber layer material in...

Embodiment 3

[0043] see figure 1 , a method for fine hole processing of glue-containing laminated materials, comprising the following steps:

[0044] a. First use a large-diameter drill to drill the initial holes of the upper material and the middle adhesive layer material in the laminated material, and then use a small-diameter drill to drill the bottom hole of the bottom material;

[0045] b. Then use the boring tool to pass through the upper material, the middle rubber layer material and the bottom material in sequence, respectively expand the aperture of the initial hole and the bottom hole, and then use the reamer for grinding;

[0046] c. Finally, use a boring tool to enlarge the hole diameter of the initial hole of the upper material and the middle rubber layer material and the bottom hole of the bottom material to complete the fine hole processing of the glue-containing laminated material.

[0047] In the step a, the large-diameter drill bit drills out the glue layer material in t...

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PUM

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Abstract

The invention discloses a precise hole machining method for a glue-containing laminated material, and belongs to the technical field of aerospace part preparation. The precise hole machining method is characterized by comprising the following steps that a, primary holes of an upper material and a middle rubber layer material in the laminated material are drilled by using a large-diameter drill bit, and then a bottom hole of a bottom material is drilled by using a small-diameter drill bit; b, a boring cutter sequentially passes through the upper material, the middle rubber layer material and the bottom material, the hole diameters of the primary holes and the bottom hole are enlarged correspondingly, and then grinding is conducted through a reamer; and c, finally, hole diameter expansion is conducted on the primary holes of the upper material and the middle rubber layer material and the bottom hole of the bottom material through the boring cutter, and fine hole machining of the rubber-containing laminated material is completed. According to the precise hole machining method, through cooperative use of the boring cutter and the reamer, machining correctness and machining efficiency of the holes in the different materials can be guaranteed, and the position precision and aperture precision requirements of the holes are guaranteed.

Description

technical field [0001] The invention relates to the technical field of aerospace parts preparation, in particular to a fine hole processing method for a glue-containing laminated material. Background technique [0002] In the field of modern mechanical processing, hole processing is widely used in various fields such as aerospace, automobiles, ships, and equipment manufacturing. Especially in the manufacture of aerospace components, hole processing plays an important role. [0003] Due to the particularity of aerospace vehicles, there are a large number of part structures with different material combinations, such as heterogeneous laminated material structures such as carbon fiber and aluminum alloy combinations, carbon fiber and titanium alloy combinations, and there are adhesive layers for connection between these material combinations. The processing characteristics of these materials are different. When these materials are combined together, it is often not easy to guar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 王伟罗育果张也姜振喜赵中刚王鹏程唐李
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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