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Method for processing composite product with through holes

A technology for composite materials and products, which is applied in the field of through-hole processing by water cutting of composite materials, can solve problems such as scrapping and product defects, achieve the effects of small damage, high pass rate, and prevent product damage

Active Publication Date: 2021-07-13
SHANDONG NON METALLIC MATERIAL RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this kind of high-pressure water cutting is used to process composite products with holes, it is easy to cause the delamination of the composite blank, resulting in product defects or even scrapping.

Method used

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  • Method for processing composite product with through holes
  • Method for processing composite product with through holes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Composite material product 1 of this embodiment is made of glass fiber reinforced epoxy resin-based composite material, and its structure and shape are as follows: figure 1 As shown, the equal-thickness structure has two notches with a length of 100 mm and a width of 50 mm at the lower end, and five through holes 2 are distributed in the thickness direction, including two circular holes with a diameter of 10 mm, an equilateral triangular hole with a side length of 50 mm, A square hole with a side length of 50mm and a rectangular hole with a length of 80mm and a width of 40mm.

[0022] By measurement, on the glass fiber-reinforced epoxy resin-based composite material rough plate 4 for preparing composite material products, utilize a punching machine to open five through feed holes 3, such as figure 2 As shown, the feed holes 3 are all round holes with a diameter of 2mm, and their relative positions on the composite material blank plate 4 correspond to the relative posit...

Embodiment 2

[0029] The composite material product 1 of this embodiment is made of carbon fiber reinforced epoxy resin-based composite material, and its structural shape is consistent with that of Embodiment 1.

[0030] Prepare a template with the same external dimensions as the composite material product 1, and manually open five round holes with a diameter of 2mm on the template. Corresponds to the inside of the through hole 2.

[0031] Cover the template on the carbon fiber-reinforced epoxy resin-based composite material rough plate 4 for preparing the composite material product 1 with a through hole, and use an electric drill to manually drill a through hole with a diameter of 4 mm on the composite material blank plate 4 corresponding to the round hole of the template. Knife hole 3.

[0032] Fix the composite material rough plate 4 to the operating area of ​​the WJ2040-FB high-pressure water jet cutting machine processing table.

[0033] Design the water-jet walking route map: use Au...

Embodiment 3

[0038] The difference from Example 2 is:

[0039] The opening of the template is completed by using the WJ2040-FB high-pressure water jet cutting machine:

[0040] Design the waterjet walking route map: use AutoCAD software to draw a two-dimensional map including the outer contour of the template and the centers of the five circular holes, and define the waterjet traveling route and the cutting position of the outer contour of the template in the two-dimensional map.

[0041] Read the water jet walking route map into the WJ2040-FB high pressure water jet cutting machine program.

[0042] Fix the PC board with a thickness of 2mm to the operating area of ​​the WJ2040-FB high-pressure water jet cutting machine processing table.

[0043] Start the water jet cutting machine, and set the read-in water jet travel route map as the water jet processing program. Start the waterjet head and run the waterjet processing program. First, locate the origin of the waterjet head according to ...

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Abstract

The invention discloses a method for processing composite product with through holes, and belongs to the field of composite material processing. According to the method, before the composite material product is machined through a high-pressure water cutting method, a through hole meeting the requirements is drilled in the position, needing to be fed, of a composite material blank, in this way, when high-pressure water cutting machining is conducted, a water jet cutter is fed from the position where a hole is formed in advance, and then cutting machining of the composite material product is completed in sequence, so that product damages caused by layering of the composite material are effectively prevented. The method is convenient and simple to operate and easy to control, the damages to the laminated composite material plate are small, the layering risk of the laminated composite material product is reduced to the maximum extent, and the qualified rate of the product is high, so that the water cutting processing efficiency of the composite material product is greatly improved, and lean production can be realized.

Description

technical field [0001] The invention relates to the field of composite material processing, in particular to a method for processing through holes by water cutting of composite materials. Background technique [0002] At present, many composite material products often cannot be formed at one time, and need to be made into blanks first and then secondary processing in the later stage. Among them, the most convenient and popular secondary processing method for composite materials is high-pressure water cutting. However, when this kind of high-pressure water cutting is used to process composite products with holes, it is easy to cause delamination of the composite blank, resulting in product defects or even scrapping. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a processing method for composite material products with through holes. [0004] In order to solve the problems of the technologies described above, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26F3/00
CPCB26F3/004
Inventor 邹积洋秦贞明孙开颜孙士祥丁笑晖曲发增
Owner SHANDONG NON METALLIC MATERIAL RES INST
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