Drill for composite material, machining method and machining device using same

A composite material and machining technology, applied in driving devices, metal processing equipment, tools for lathes, etc., can solve the problems of fiber pullout, similarity, combustion, etc., and achieve the effect of high-precision perforation processing

Inactive Publication Date: 2019-04-02
JIYUAN VOCATIONAL & TECHN COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Typical defects after drilling with conventional PCD bits include spalling, fiber pull-out, burning and the like

Method used

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  • Drill for composite material, machining method and machining device using same

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0025] The application principle of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] Such as figure 1 As shown, the present invention is realized in this way, a drill bit for composite materials includes a drill body 1, a reaming part 2, a finishing part 3, and a drill rod 4 connected sequentially from bottom to top;

[0027] The front end of the drill body 1 is provided with a cutting edge, and the drill body 1 is provided with a chip removal groove, and a chip removal groove is formed between the blade rotation tracks of the cutting edg...

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Abstract

The invention discloses a drill bit used for a composite material and a machining method and device using the same. The drill bit comprises a drill bit body, a reaming part, a finish machining part and a drill rod which are sequentially connected from bottom to top. The front end of the drill bit body is provided with a cutting edge and a chip removal groove, a reaming edge is arranged at the connecting position of the reaming part and the drill bit body, the reaming part is provided with a drill lip and a chip groove, and the finish machining part comprises an external grinding beveled edge. As the drill bit body, the reaming part and the finish machining part are connected into a whole, while the conical part of the drill bit body can be used for restraining cutting resistance to be small, a lower hole is enlarged for perforation machining, flash is not prone to being generated on the machining part, and propelling resistance exerted on a machined part in the perforation machining direction can be reduced; the stripping force on the interface in the composite material is reduced, and therefore interlayer stripping is not prone to being caused.

Description

technical field [0001] The invention belongs to the field of machining, and in particular relates to a drill bit for composite materials, a machining method and a machining device using the same. Background technique [0002] Carbon fiber reinforced polymers (CFRP) include a wide range of composite materials with different fiber types, fiber orientations, fiber contents, and matrix materials. The use of fiber reinforcements has been growing steadily in many industries in recent years. For example, CFRP composites have found increasing applications in the aerospace and automotive industries due to their high specific strength and high specific stiffness. As the use of such materials increases, there will be an increasing need for a cost-effective method that can produce high quality holes in such materials that are sized within narrow tolerances. [0003] However, CFRP composites pose huge problems in terms of processing. Currently, the market is dominated by polycrystalli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B51/00
CPCB23B39/00B23B51/08B23B2226/275B23B2251/40B23Q5/04
Inventor 孙海燕孙晔赵双喜苗雅丽商冬青张学明崔沛张明伟刘红艳李秀副高清冉
Owner JIYUAN VOCATIONAL & TECHN COLLEGE
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