Special cutter for effective drilling of fiber reinforced composite

A composite material and fiber-reinforced technology, applied in metal processing and other directions, can solve problems such as poor hole wall quality, delamination, burrs, tearing, etc., and achieve the effects of low-damage hole making, improved quality, and reduced delamination defects

Active Publication Date: 2015-11-11
蓝鲸科技(深圳)有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problems that carbon fiber composite materials are easy to be exported during hole making, and are easily damaged by delamination, burrs, tears, etc., a

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  • Special cutter for effective drilling of fiber reinforced composite
  • Special cutter for effective drilling of fiber reinforced composite
  • Special cutter for effective drilling of fiber reinforced composite

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Embodiment Construction

[0009] The specific implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and technical solutions. A fiber-reinforced composite high-efficiency hole-making cutter, its specific embodiment cutter is as figure 1 As shown, the tool is divided into the first main cutting area A formed by the envelope of the first main cutting edge 1, the second main cutting area B formed by the envelope of the second main cutting edge 2, and the envelope is the end hole The size of the left-handed helix is ​​the six areas of secondary cutting area C, variable diameter area D, clamping area E and micro-tooth cutting area G. Among them, the first main cutting area A has two first main cutting edges 1, and the apex angle α formed by them is an obtuse angle, so that the first main cutting edge 1 has high rigidity and can better center after drilling. function, to ensure the smooth progress of the drilling subsequent drilling process, t...

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Abstract

The invention relates to a special cutter for effective drilling of a fiber reinforced composite, and belongs to the technical field of drilling tools in machining. The special cutter has a multiple-cutting-edge doubletop angle with micro tooth structures and vibration restraining structures arranged in a crossed and helical manner. The cutter is divided into six zones including a first main cutting zone formed by envelope lines of first main cutting edges, a second main cutting zone formed by envelope lines of second main cutting edges, a left-screw angled auxiliary cutting zone with envelope lines equal to a final hole in size, a diameter variation zone, a clamping zone and a micro tooth cutting zone. According to the special cutter for the effective drilling of the fiber reinforced composite, the multiple-cutting-edge doubletop angle structure is adopted, integral machining of drilling, boring and reaming is achieved, the axial force of a drilling shaft is reduced, and the delamination defect is reduced. By means of the micro tooth structures, arranged in the crossed and helical manner, of the adjacent cutting edges, burrs at an outlet and an inlet can be effectively removed, the tearing damage caused when the final hole is formed is reduced, the quality of the hole wall of the inlet is improved, and one-time low-damage drilling of the fiber reinforced composite is finally achieved.

Description

technical field [0001] The invention belongs to the technical field of drilling tools in mechanical processing, and relates to a special tool for high-efficiency hole making of fiber reinforced composite materials. It is suitable for one-time high-quality and high-efficiency hole-making processing of carbon fiber reinforced composite materials. Background technique [0002] Fiber-reinforced composite materials generally have excellent mechanical properties. Its overall performance can be designed, and it is easy to manufacture the overall shape synchronously. It is widely used in components in aerospace and other fields, which can reduce structural weight and reduce manufacturing cycle. Improve reliability. In particular, carbon fiber reinforced composite materials, with their high specific strength and high specific stiffness, are often used to manufacture core load-bearing components of aircraft. However, in order to realize the connection and assembly of parts, such mate...

Claims

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Application Information

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IPC IPC(8): B26F1/16
Inventor 王福吉付饶贾振元何春伶钱宝伟
Owner 蓝鲸科技(深圳)有限公司
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