Press-type PCD milling cutter for CFRP milling and manufacturing method

A technology of milling processing and manufacturing method, which is applied in the direction of cutting tools for milling machines, milling cutting blades, milling cutters, etc., which can solve problems such as composite material expansion and delamination, composite material burrs, and tool damage, so as to reduce the failure rate , Processing vibration is small, and the effect of reducing manufacturing cost

Inactive Publication Date: 2016-07-13
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, solid carbide milling cutters or high-speed steel milling cutters are commonly used in the processing of various composite material forming surfaces, but these two materials of cutters cannot overcome the above problems well when processing CFRP. Milling with an end mill made of conventional materials is prone to vibration during the milling process, resulting in burrs on the cut composite material, and the composite material will swell and delaminate under the action of cutting force
At present, the tool damage and parts scrapping caused by delamination and tearing after CFRP milling have seriously restricted the application of CFRP.

Method used

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  • Press-type PCD milling cutter for CFRP milling and manufacturing method
  • Press-type PCD milling cutter for CFRP milling and manufacturing method
  • Press-type PCD milling cutter for CFRP milling and manufacturing method

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specific Embodiment approach 1

[0026] Specific implementation mode one: as Figure 1~Figure 4 As shown, this embodiment discloses a compression type PCD milling cutter for CFRP milling, including a milling cutter body 1, the material of the milling cutter body 1 is cemented carbide, and the outer peripheral surface of the milling cutter body 1 The front end is provided with four milling cutter grooves 2 and four chip removal grooves 4; the compression type PCD milling cutter for CFRP milling processing also includes four PCD milling inserts 3 (choose finer diamond, diamond The finer the particle size, the higher the wear resistance, the diamond particle size is preferably 30 μm), the four milling blades 3 include two front milling blades 3-1 and two rear milling blades 3-2, the The two front milling inserts 3-1 are welded in any two symmetrically arranged milling cutter slots 2, and the two front milling inserts 3-1 are arranged at the front end of the milling cutter slot 2, the two The rear milling blades...

specific Embodiment approach 2

[0028] Specific implementation mode two: as figure 1 As shown in the first embodiment, a compression PCD milling cutter for CFRP milling, the included angle θ between each PCD milling insert 3 and the central axis of the milling cutter body 1 is 4°. When the tool rotates at high speed, every two adjacent PCD milling blades 3 are in a compressed state. This technical solution has good processing performance for defects such as low bonding strength between layers of composite materials, easy delamination, and burrs and tears on the upper and lower processing surfaces.

specific Embodiment approach 3

[0029] Specific implementation mode three: as figure 1 and figure 2 As shown in the first embodiment, a compression type PCD milling cutter for CFRP milling is described in the first embodiment. The angle β is 90° (that is, the angle of the flutes 4).

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Abstract

The invention discloses a press-type PCD milling cutter for CFRP milling and a manufacturing method and relates to the technical field of milling cutters.When the milling cutter is used for machining a CFRP workpiece, axial cutting force can be offset, vibration can be reduced, and meanwhile layering, tearing and burr defects can be well inhibited.Two front milling cutter grooves are symmetrically formed in the front end of a milling cutter body, and two rear milling cutter grooves are symmetrically formed in the rear portions of the two front milling cutter grooves.The two front milling cutter grooves and the two rear milling cutter grooves are arranged sequentially and alternately, and the rear portions of the two front milling cutter grooves and the front portions of the two rear milling cutter grooves partially coincide in the axial direction.A PCD milling blade is welded in each front milling cutter groove, and a PCD milling blade is welded in each rear milling cutter groove.The four PCD milling blades are all arranged obliquely.The included angles formed between all the PCD milling blades and the center axis of the milling cutter body are the same.Every two adjacent PCD milling blades are opposite in inclining direction.A chip groove is formed in one side of the front surface of each PCD milling blade.The press-type PCD milling cutter is used for CFRP milling, and the defect that an upper surface and a lower surface are layered can be overcome.

Description

technical field [0001] The invention relates to the technical field of milling cutters, in particular to a compression PCD milling cutter for CFRP milling and a manufacturing method thereof. Background technique [0002] With the advancement of science and technology, CFRP (carbon fiber composite materials) has been widely used in high-end manufacturing fields such as aerospace due to its superior physical and mechanical properties. At present, there are few research results on milling of carbon fiber composite materials. This is because CFRP The fiber-reinforced material has the characteristics of high hardness, layered structure, heterogeneity and anisotropy, and is a difficult-to-process material. At present, solid carbide milling cutters or high-speed steel milling cutters are commonly used in the processing of various composite material forming surfaces, but these two materials of cutters cannot overcome the above problems well when processing CFRP. Milling with an end...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23C5/10B23P15/34
CPCB23C5/1018B23C2200/28B23C2210/203B23C2222/28B23C2226/27B23P15/34
Inventor 陈涛王艳艳刘献礼杨辰
Owner HARBIN UNIV OF SCI & TECH
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