CN109604663A - A kind of carbon fiber sandwich-high-precision hole forming method of aluminium alloy layer laminate materials - Google Patents
A kind of carbon fiber sandwich-high-precision hole forming method of aluminium alloy layer laminate materials Download PDFInfo
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- CN109604663A CN109604663A CN201910017896.7A CN201910017896A CN109604663A CN 109604663 A CN109604663 A CN 109604663A CN 201910017896 A CN201910017896 A CN 201910017896A CN 109604663 A CN109604663 A CN 109604663A
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- carbon fiber
- hole
- aluminium alloy
- alloy layer
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B35/00—Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P13/00—Making metal objects by operations essentially involving machining but not covered by a single other subclass
- B23P13/02—Making metal objects by operations essentially involving machining but not covered by a single other subclass in which only the machining operations are important
Abstract
The invention discloses a kind of carbon fiber sandwich-high-precision hole forming methods of aluminium alloy layer laminate materials, carbon fiber sandwich is assembled together with aluminum alloy joint by tooling type frame, then layering drilling is carried out according to the difference of material, and different knife combinations is selected in same material region, by the way of step drill reaming, the processing of carbon fiber sandwich-aluminium alloy layer laminate materials high-precision hole is realized.The invention avoids carbon fiber laminboard layer apertures, and tearing, damaged and overproof and other issues occurs, and ensure that the processing quality of part, reduces the scrappage of part, to reduce the manufacturing cost of part.
Description
Technical field
The present invention relates to technical fields of mechanical processing, are that a kind of carbon fiber sandwich-aluminium alloy layer laminate materials are high specifically
Smart hole forming method.
Background technique
With the continuous development of aeronautical technology, requirement of the aircraft equipment of new generation to material property is higher and higher, compound
Material is outstanding
It is that carbon fibre composite is widely applied with its unique performance.Carbon fiber sandwich part is as new one
For the component part of aircraft equipment, it is of crucial importance in the development process of entire aircraft equipment, especially Air Passenger
A350XWB series, most housing constructions are made of composite material, and the dosage accounting of composite material is up to 53%.Currently, carbon
Fiber sandwich composite material parts are mostly used for the critical positions such as wing and the rudder of aircraft, constitute layer with aluminum alloy joint
Laminate materials realize the connection between aircraft structure, to the weight for mitigating aircraft, improve stealthy aircraft, aeroelasticity and comfort
Etc. comprehensive performances play a significant role.When conventional method is processed, carbon fiber laminboard layer is separately carried out with aluminium alloy layer generally, is adopted
The manually mode of drilling or robotic assembly system's drilling completes the processing of carbon fiber laminboard layer and aluminium alloy layer hole.
But traditional method has the disadvantage that firstly, when using robotic assembly system's drilling, due to robot end
Hold executing agency rigidly poor, when drilling is easy to happen flutter, reduces the quality and precision in hole；Using artificial drilling not only efficiency
It is low, and influenced by factors such as worker's qualifications, it is difficult to ensure that the quality requirement in hole.Secondly, easily occurring in process
The problems such as tearing of carbon fiber laminboard layer aperture, breakage, lead to part rejection, increase the manufacturing cost of part, influences adding for part
Work efficiency rate, to influence the lead time of entire aircraft equipment.Therefore, it is high-precision to improve carbon fiber sandwich-aluminium alloy layer laminate materials
The processing method in hole improves the processing quality of part, reduces manufacturing cost and is of great significance.
Summary of the invention
The purpose of the present invention is to provide a kind of carbon fiber sandwich-high-precision hole forming methods of aluminium alloy layer laminate materials, avoid
Tearing, damaged and overproof and other issues occurs for carbon fiber laminboard layer aperture, ensure that the processing quality of part, reduces zero
The scrappage of part, to reduce the manufacturing cost of part.
The present invention is achieved through the following technical solutions: a kind of carbon fiber sandwich-high-precision hole machined side of aluminium alloy layer laminate materials
Carbon fiber sandwich is assembled together by method by tooling type frame with aluminum alloy joint, is then layered according to the difference of material
Drilling, and different knife combinations is selected in same material region, by the way of step drill reaming, realize carbon fiber sandwich-
The processing in the high-precision hole of aluminium alloy layer laminate materials.
Further, in order to preferably realize the present invention, specifically includes the following steps:
Step S1: carbon fiber sandwich material is assembled together with aluminum alloy joint by tooling type frame, and is fixed on machine
On bed workbench；
Step S2: Choice of Bits is in hole at the beginning of carbon fiber laminboard layer carbon fiber laminboard layer；The first hole of the carbon fiber laminboard layer
For blind hole, and aperture is DC。
Step S3: selecting different knife combinations, by the way of drilling with step drill by aluminium alloy layer hole machined to and carbon fiber
Tieing up laminboard layer, just hole is isometrical；
Step S4: as a whole by carbon fiber laminboard layer and aluminium alloy layer, cutter is selected, is completed by way of expanding, cutting with scissors
The processing of carbon fiber sandwich-aluminium alloy layer laminate materials high-precision hole.
Further, in order to preferably realize the present invention, the step S2 is specifically referred to: in hole drill at the beginning of carbon fiber laminboard layer
In cutting, first hole aperture DCWith whole hole aperture DZBetween meet: 0.6mm≤(DZ-DC)≤1mm；And bore depth L at shoulderPWith carbon fiber
Meet 0.5mm≤(L between the thickness d of laminboard layerP-d)≤1mm。
Further, in order to preferably realize the present invention, the step S3 specifically includes the following steps:
Step S31: it during aluminium alloy layer hole drilling, is processed by the way of drilling with step drill first, aluminium alloy
Hole aperture D at the beginning of layerLCWith meet between the aperture of hole at the beginning of carbon fiber laminboard layer:
Step S32: and then expand hole at the beginning of aluminium alloy layer, and the aperture D in the first hole of aluminium alloy layer after expansionLK, carbon fiber
The first hole aperture D of laminboard layerC, aluminium alloy layer just hole aperture DLCSatisfaction between three:
It finally selects and the first isodiametric tool sharpening aluminium alloy layer in hole of carbon fiber laminboard layer.
Further, in order to preferably realize the present invention, the step S4 is specifically referred to: carbon fiber laminboard layer and aluminium are closed
Layer gold as a whole, selects cornish bit, reamer, it is high-precision that carbon fiber sandwich-aluminium alloy layer laminate materials is completed by way of expanding, cutting with scissors
The processing in hole.
Compared with prior art, the present invention have the following advantages that and the utility model has the advantages that
The beneficial effects of the present invention are: be layered and step drill reaming by way of breach since processing conditions must be from
Carbon fiber laminboard layer starts the limitation of drilling, avoids that tearing occurs for carbon fiber laminboard layer aperture, damaged and overproof etc. quality are asked
Topic, ensure that the processing quality of part, reduces the scrappage of part, to reduce the manufacturing cost of part.
Detailed description of the invention
Fig. 1 is the high-precision hole machined schematic diagram of carbon fiber sandwich-aluminium alloy layer laminate materials；
Wherein 1- carbon fiber laminboard layer, 2- aluminium alloy layer, 3- drill bit, the first drill of 4- aluminium alloy, hole drill in 5- aluminium alloy
Head, 6- cornish bit, 7- reamer.
Specific embodiment
The present invention is described in further detail below with reference to embodiment, embodiments of the present invention are not limited thereto.
Embodiment 1:
The present invention is achieved through the following technical solutions, as shown in Figure 1, a kind of carbon fiber sandwich-aluminium alloy layer laminate materials are high
Carbon fiber sandwich is assembled together by smart hole forming method by tooling type frame with aluminum alloy joint, then not according to material
It is same to carry out layering drilling, and different knife combinations is selected in same material region, by the way of step drill reaming, realize carbon
The processing of fiber sandwich-aluminium alloy layer laminate materials high-precision hole.
It should be noted that being breached by way of being layered with step drill reaming by above-mentioned improvement due to processing item
Part must since carbon fiber laminboard layer 1 drilling limitation, avoid 1 aperture of carbon fiber laminboard layer and tearing, damaged and super occur
Difference and other issues ensure that the processing quality of part, reduce the scrappage of part, thus reduce the manufacture of part at
This.
The other parts of the present embodiment are same as the previously described embodiments, and so it will not be repeated.
Embodiment 2:
The present embodiment advanced optimizes on the basis of the above embodiments, as shown in Figure 1, specifically includes the following steps:
Step S1: carbon fiber sandwich material is assembled together with aluminum alloy joint by tooling type frame, and is fixed on machine
On bed workbench；
Step S2: Choice of Bits 3 is in hole at the beginning of the carbon fiber laminboard layer processed of carbon fiber laminboard layer 1；At the beginning of the carbon fiber laminboard layer
Hole is blind hole；The aperture in first hole is DC, the aperture for forming whole hole after processing is completed is DZ。
Step S3: according to the size in the whole hole of carbon fiber laminboard layer 1, different knife combinations is selected, using drilling with step drill
Mode is isometrical to hole at the beginning of with carbon fiber laminboard layer by aluminium alloy layer hole machined；
Step S4: as a whole by carbon fiber laminboard layer 1 and aluminium alloy layer 2, selecting cutter, complete by way of expanding, cutting with scissors
At the processing of carbon fiber sandwich-aluminium alloy layer laminate materials high-precision hole.
Carbon fiber sandwich and aluminum alloy joint are assembled together so that carbon fiber laminboard layer 1 and aluminium close by tooling type frame
Layer gold 2 forms an entirety, then selects cutter, and it is high that carbon fiber sandwich-aluminium alloy layer laminate materials are completed by way of expanding, cutting with scissors
The processing in smart hole.
Further, in order to preferably realize the present invention, the step S2 is specifically referred to: in hole drill at the beginning of carbon fiber laminboard layer
In cutting, first hole aperture DCWith whole hole aperture DZBetween meet: 0.6mm≤(DZ-DC)≤1mm；And bore depth L at shoulderPWith carbon fiber
Meet 0.5mm≤(L between the thickness d of laminboard layer 1P-d)≤1mm。
Further, in order to preferably realize the present invention, the step S3 specifically includes the following steps:
Step S31: it during aluminium alloy layer hole drilling, is processed by the way of drilling with step drill first, aluminium alloy
Hole aperture D at the beginning of layerLCWith hole aperture D at the beginning of carbon fiber laminboard layerCBetween meet:
Step S32: and then expanding hole at the beginning of aluminium alloy layer, and aperture after expanding and carbon fiber laminboard layer just hole aperture and
Aluminium alloy layer meets between first hole aperture:
Finally selection and the first isodiametric tool sharpening aluminium alloy layer 2 in hole of carbon fiber laminboard layer, until completing high accurate hole
Processing.
Further, in order to preferably realize the present invention, the step S4 is specifically referred to: by carbon fiber laminboard layer 1 and aluminium
Alloy-layer 2 as a whole, selects cornish bit 6, reamer 7, and carbon fiber sandwich-aluminium alloy stacking material is completed by way of expanding, cutting with scissors
Expect the processing in high-precision hole.
The other parts of the present embodiment are same as the previously described embodiments, and so it will not be repeated.
Embodiment 3:
The present embodiment is highly preferred embodiment of the present invention, as shown in Figure 1, a kind of carbon fiber sandwich-aluminium alloy layer laminate materials
High-precision hole forming method, specifically includes the following steps:
Step S1: carbon fiber sandwich material is assembled together with aluminum alloy joint by tooling type frame, and is fixed on machine
On bed workbench；
Step S2: Choice of Bits 3 is in hole at the beginning of the carbon fiber laminboard layer processed of carbon fiber laminboard layer 1；At the beginning of the carbon fiber laminboard layer
Hole is blind hole；The aperture in first hole is DC, the aperture for forming whole hole after processing is completed is DZ。
The step S2 is specifically referred to: at the beginning of carbon fiber laminboard layer in hole drilling, first hole aperture DCWith whole hole aperture DZBetween
Meet: 0.6mm≤(DZ-DC)≤1mm；And bore depth L at shoulderPMeet between the thickness d of carbon fiber laminboard layer 1 0.5mm≤
(LP-d)≤1mm。
Step S3: according to the size in the whole hole of carbon fiber laminboard layer 1, different knife combinations is selected, using drilling with step drill
Mode is isometrical to hole at the beginning of with carbon fiber laminboard layer by aluminium alloy layer hole machined；
The step S3 specifically includes the following steps:
Step S31: it during aluminium alloy layer hole drilling, is processed by the way of drilling with step drill first, aluminium alloy
Hole aperture D at the beginning of layerLCWith hole aperture D at the beginning of carbon fiber laminboard layerCBetween meet:
Step S32: being expanded hole at the beginning of aluminium alloy layer using drill 5 in aluminium alloy, and the aperture after expansion, carbon fiber folder
Just hole aperture, aluminium alloy layer meet sandwich layer between first hole aperture:
It finally selects and the first isodiametric tool sharpening aluminium alloy layer 2 in hole of carbon fiber laminboard layer.
Step S4: as a whole by carbon fiber laminboard layer 1 and aluminium alloy layer 2, selecting cutter, complete by way of expanding, cutting with scissors
At the processing of carbon fiber sandwich-aluminium alloy layer laminate materials high-precision hole.
The invention avoids 1 apertures of carbon fiber laminboard layer, and tearing, damaged and overproof and other issues occurs, and ensure that part
Processing quality, reduce the scrappage of part, to reduce the manufacturing cost of part.
As shown in Figure 1, being a kind of carbon fiber sandwich-aluminium alloy layer laminate materials high-precision hole forming method schematic diagram, tool
Body implementation process is:
A kind of carbon fiber sandwich-high-precision hole forming method of aluminium alloy layer laminate materials comprising following steps:
Step 1: carbon fiber sandwich-aluminium alloy layer laminate materials are fixed on platen using special tooling type frame.
Step 2: the drilling since carbon fiber laminboard layer 1, Choice of Bits 3, and guaranteeing the diameter of drill bit 3, i.e., carbon fiber presss from both sides
The first hole aperture D of carbon fiber laminboard layer in core-aluminium alloy layer laminate materialsCWith whole hole aperture DZBetween meet: 0.6mm≤(DZ-DC)≤
1mm makes just blind hole in carbon fiber laminboard layer 1, and the depth of blind hole is that drill bit 3 bores shoulder across carbon fiber laminboard layer 1, that is, guarantees to bore shoulder
Locate depth LPMeet between the thickness d of carbon fiber sandwich of layers: 0.5mm≤(LP-d)≤1mm。
Step 3: selecting different knife combinations according to carbon fiber sandwich-aluminium alloy layer laminate materials aperture size, adopting
It is with the processing method of drilling with step drill, aluminium alloy layer hole machined is isometrical to hole at the beginning of with carbon fiber laminboard layer.
Just drill 4 processes aluminium alloy layer just hole to selection aluminium alloy first, and guarantees the diameter of the first drill 4 of aluminium alloy,
That is the first hole aperture D of aluminium alloy layerLCWith hole aperture D at the beginning of carbon fiber laminboard layerZBetween meet:
Then it selects aluminium alloy mesoporous drill bit 5 by hole borehole enlargement at the beginning of aluminium alloy layer again, and guarantees to expand 3 diameter of drill bit in aperture, i.e.,
Aluminium alloy layer aperture D after expansionLK, carbon fiber laminboard layer just hole aperture DC, aluminium alloy layer just meets between the aperture of hole:Finally selection and the first isodiametric drill bit 3 in hole of carbon fiber laminboard layer, by aluminium alloy layer 2
The aperture in hole machined to hole at the beginning of with carbon fiber laminboard layer is isometrical.
Step 4: as a whole by carbon fiber laminboard layer 1 and aluminium alloy layer 2, selection Special reaming cutter 6, special reamer 7,
The processing of carbon fiber sandwich-aluminium alloy layer laminate materials high-precision hole is completed by way of expanding, cutting with scissors.
The other parts of the present embodiment are same as the previously described embodiments, and so it will not be repeated.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is all according to
According to technical spirit any simple modification to the above embodiments of the invention, equivalent variations, protection of the invention is each fallen within
Within the scope of.
Claims (5)
1. a kind of carbon fiber sandwich-high-precision hole forming method of aluminium alloy layer laminate materials, it is characterised in that: by tooling type frame by carbon
Fiber sandwich is assembled together with aluminum alloy joint, then carries out layering drilling according to the difference of material, and in same material area
Different knife combinations is selected in domain, by the way of step drill reaming, realizes carbon fiber sandwich-high-precision hole of aluminium alloy layer laminate materials
Processing.
2. a kind of carbon fiber sandwich-high-precision hole forming method of aluminium alloy layer laminate materials according to claim 1, feature exist
In: specifically includes the following steps:
Step S1: carbon fiber sandwich material is assembled together with aluminum alloy joint by tooling type frame, and is fixed on lathe worker
Make on platform；
Step S2: Choice of Bits (3) is in the first hole of carbon fiber laminboard layer (1) carbon fiber laminboard layer processed；The first hole of carbon fiber laminboard layer
Aperture DC；
Step S3: selecting different knife combinations, is pressed from both sides aluminium alloy layer hole machined to carbon fiber by the way of drilling with step drill
Just hole is isometrical for sandwich layer；
Step S4: as a whole by carbon fiber laminboard layer (1) and aluminium alloy layer (2), selecting cutter, complete by way of expanding, cutting with scissors
At the processing of carbon fiber sandwich-aluminium alloy layer laminate materials high-precision hole.
3. a kind of carbon fiber sandwich-high-precision hole forming method of aluminium alloy layer laminate materials according to claim 2, feature exist
In: the step S2 is specifically referred to: at the beginning of carbon fiber laminboard layer in hole drilling, first hole aperture DCWith whole hole hole after processing is completed
Diameter DZBetween meet: 0.6mm≤(DZ-DC)≤1mm；And bore depth L at shoulderPIt is full between the thickness d of carbon fiber laminboard layer (1)
Sufficient 0.5mm≤(LP-d)≤1mm。
4. a kind of carbon fiber sandwich-high-precision hole forming method of aluminium alloy layer laminate materials according to claim 1, feature exist
In: the step S3 specifically includes the following steps:
Step S31: it during aluminium alloy layer hole drilling, is processed by the way of drilling with step drill first, at the beginning of aluminium alloy layer
Hole aperture DLCWith meet between the aperture of hole at the beginning of carbon fiber laminboard layer:
Step S32: and then expand hole at the beginning of aluminium alloy layer, and the aperture D in the first hole of aluminium alloy layer after expansionLK, carbon fiber sandwich
Hole aperture D at the beginning of layerC, aluminium alloy layer just hole aperture DLCSatisfaction between three:
It finally selects and the first isodiametric tool sharpening aluminium alloy layer (2) in hole of carbon fiber laminboard layer.
5. a kind of carbon fiber sandwich-high-precision hole forming method of aluminium alloy layer laminate materials according to claim 1, feature exist
In: the step S4 is specifically referred to: as a whole by carbon fiber laminboard layer (1) and aluminium alloy layer (2), selecting cornish bit (6), hinge
Knife (7) completes the processing of carbon fiber sandwich-aluminium alloy layer laminate materials high-precision hole by way of expanding, cutting with scissors.
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| CN201910017896.7A CN109604663A (en) | 2019-01-09 | 2019-01-09 | A kind of carbon fiber sandwich-high-precision hole forming method of aluminium alloy layer laminate materials |
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| CN201910017896.7A CN109604663A (en) | 2019-01-09 | 2019-01-09 | A kind of carbon fiber sandwich-high-precision hole forming method of aluminium alloy layer laminate materials |
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Cited By (6)
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| CN111054954A (en) * | 2019-12-18 | 2020-04-24 | 成都飞机工业（集团）有限责任公司 | Method for processing stainless steel aluminum honeycomb sandwich part |
| CN112982786A (en) * | 2021-03-09 | 2021-06-18 | 山东七星绿色建筑科技有限公司 | Truss floor plate production line and production method |
| CN113020653A (en) * | 2021-03-09 | 2021-06-25 | 山东七星绿色建筑科技有限公司 | Truss 3D floor board puncher |
| CN113245786A (en) * | 2021-05-10 | 2021-08-13 | 昆山佐科自动化设备有限公司 | Fine machining process for narrow cavity of template |
| CN113579648A (en) * | 2021-07-21 | 2021-11-02 | 成都飞机工业（集团）有限责任公司 | Fine hole machining method for glue-containing laminated material |
| CN114537704A (en) * | 2022-01-19 | 2022-05-27 | 成都飞机工业（集团）有限责任公司 | Reverse drilling operation method |
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