Method for machining large-depth-diameter-ratio small hole of glass fiber composite-aluminum alloy layered material

A hole processing method and glass fiber technology, applied in metal processing equipment, manufacturing tools, boring/drilling, etc., can solve problems such as drill bit breakage

Inactive Publication Date: 2017-06-13
AEROSPACE RES INST OF MATERIAL & PROCESSING TECH +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical solution of the present invention is to provide a method for processing small holes with a large depth-to-diameter ratio of glass fiber composite material-alu

Method used

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  • Method for machining large-depth-diameter-ratio small hole of glass fiber composite-aluminum alloy layered material
  • Method for machining large-depth-diameter-ratio small hole of glass fiber composite-aluminum alloy layered material

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with drawings and embodiments.

[0025] The workpiece to be processed is a laminated material made of resin-based high-silica glass fiber composite material (thickness 15mm) and forged aluminum 5A06 (thickness 15mm) bonded by epoxy resin adhesive. The theoretical diameter of the hole to be processed is The hole to be processed is a through hole that penetrates the laminated material, the hole depth is 30 mm, and the ratio of depth to diameter is 20. Its processing specific steps are as follows:

[0026] S1: Prepare tools: According to the size and material characteristics of the workpiece, two special size drills are customized, including: 1) Carbide drills for processing glass fiber composite materials, the diameter of the small diameter of the drill bit is D=1.5mm, and the length of the small diameter blade is L= 10mm, small diameter overall length L 0 = 20mm; 2) High-speed steel drill bit for alu...

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Abstract

The invention relates to a machining technology, in particular to a method for machining a large-depth-diameter-ratio small hole of the glass fiber composite-aluminum alloy layered material. The technology comprises specific steps that firstly, two drill bots of specification sizes are prepared, wherein the drill bits comprise a hard alloy drill bit used for glass fiber composite machining and a high-speed steel drill bit used for aluminum alloy machining; secondly, the thickness of the glass fiber composite layer is measured and recorded, and the thickness of a rubber layer is measured and recorded; thirdly, a product is clamped, and it is ensured that during subsequent machining, tool feeding is achieved from one side of non metal; fourthly, the hard alloy drill bit is clamped, reasonable machining parameters are set, and after the glass fiber composite is subject to peck drilling and is drilled through, tool retreating is achieved; fifthly, the feeding speed is reduced, and peck drilling is carried out until a certain depth is achieved, and tool retreating is achieved; sixthly, the high-speed steel drill bit is replaced, the reasonable machining parameters are set, and peck drilling is carried out until the design depth is achieved, and tool retreating is carried out. Through the method, the problem of the high drill bit breakage rate in the small hole machining can be effectively solved, and the yield is greatly improved.

Description

technical field [0001] The invention relates to a method for processing a small hole with a large depth-to-diameter ratio and a large depth-to-diameter ratio in a glass fiber composite material-aluminum alloy laminated material, and relates to a mechanical processing technology, in particular to a processing technology for a small hole with a large depth-to-diameter ratio in a laminated material . Background technique [0002] Due to its low density and high specific strength, glass fiber composites are used more and more in engineering. In particular, glass fiber composites are used as functional materials and aluminum alloys are used as structural materials to form glass fiber composites-aluminum alloy laminated materials, which not only have good mechanical properties, but also have good anti-heat insulation functions. field has been widely used. However, due to the poor cutting performance of glass fiber composite materials, and the small diameter, long length and poor...

Claims

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Application Information

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IPC IPC(8): B23B35/00B23B41/14
CPCB23B35/00B23B41/14
Inventor 叶正茂郭安儒尤洁张军凌丽王俊江班晓伟陈程苗洪玉
Owner AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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