CN107378038A - A kind of super boring method and device for mixing laminate of fibre metal - Google Patents
A kind of super boring method and device for mixing laminate of fibre metal Download PDFInfo
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- CN107378038A CN107378038A CN201710590018.5A CN201710590018A CN107378038A CN 107378038 A CN107378038 A CN 107378038A CN 201710590018 A CN201710590018 A CN 201710590018A CN 107378038 A CN107378038 A CN 107378038A
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- drilling
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- subbolster
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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
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention discloses a kind of super boring method and device for mixing laminate of fibre metal.Laminate is machined to by target size using numerical control mill cutting method first；Then, cleaning platform, pad surfaces are cleaned；By alignment system clamping, positioning on this drilling equipment by laminate；Clamping dedicated tool；Liquid nitrogen is passed through, reduces working temperature, opens micro lubricating；Then, drilled using specific drilling parameter；Drilling situation is finally checked, removes flash removed, washed samples and workbench, implements nondestructive analysis.The present invention can effectively solve the problems such as delamination damage in the super intermixed layer twist drill hole of fibre metal, metallic bur power, significantly improve the long-time stability of the veneer structure, take into account drilling efficiency simultaneously, reduce the too high caused tool wear of cutting heat and fibrous matrix fire damage, improve borehole accuracy, extend cutter life, there is higher engineering application value.
Description
Technical field
The invention belongs to composite assembly connection technical field, the more particularly to super brill for mixing laminate of tencel metal
Hole method and device.
Background technology
Reducing and pollute in the whole world, under the cry for reducing discharge, composite dosage is significantly increased on airliner in recent years,
Its main purpose is the weight for mitigating passenger plane to reduce fuel consumption.The characteristics of big aircraft service life length and high use intensity,
Body covering is easily set to produce fatigue crack and impact injury, especially in rudder, elevator and fuselage skin etc. by alternating download
The position of lotus effect, easily produces fatigue crack, influences flight safety, therefore the requirement to material is very harsh.Fibre metal
Super to mix laminate and arise at the historic moment, the super laminate that mixes of the tencel metal is handed over by high strength alumin ium alloy thin plate and glass fibre prepreg
After laying, solidification under certain temperature and pressure forms.Its density it is low and with prominent tension-pressure fatigue behaviour and compared with
High nick break performance, can make structure loss of weight 25%-30%, and anti-fatigue life improves 10 times -15 times.
Because the laminate has an anisotropy and heterogeneity, the complicated multi-surface systems of additional laminate, therefore in drilling
The problem of metal material is not in occurs in journey, such as layering, interlayer micro-crack, fire damage and spike protein gene.Work as drill bit
When close to workpiece end, as non-cutting layer thickness tapers into, the ability of its resistance to deformation also reduces therewith.Some
Position, if axial thrust exceedes interfacial bonding strength, it will be formed when laminate is drilled completely by drill bit in drilling exit
One delamination area.Axial thrust is reduced by way of selecting different drill bit geometric parameter and Cutting Parameters, can be with
Reduce layering.
On the one hand, for aluminium alloy, high feed speed and high cutting speed are optimal borehole conditions；On the other hand, fiber
When strengthening composite drilling, low feed speed and high cutting speed are optimal borehole conditions.Do not considering drill bit geometric parameter
In the case of being influenceed with cutting speed, relatively low feed speed can meet low drilling thrust and the requirement without layering well.
However, in drilling process, relatively low feed speed causes the temperature rise for processing hole wall, while drill bit own temperature can also rise
Height, cause matrices of composite material to be burnt and accelerate the abrasion of drill bit.Rational cutting parameter and applicable tool geometrical parameter
Drilling to laminate produces large effect.
About 98% energy is converted into heat in drilling process, improves drilling area temperature, adverse effect is brought to cutter,
Cause the change of workpiece size.Moreover, glass fibre has extremely strong resistance to grinding performance in itself, easily cutter is caused to wear.
Based on above research background, the present invention is proposed using dedicated tool, device and drilling parameter to tencel metal
The super laminate that mixes carries out drilling, to meet fibre metal super the needs of mixing laminate assembly connection in large aircraft.
The content of the invention
The technical problems to be solved by the invention are to overcome above-mentioned problem, there is provided a kind of low cost is simultaneously applied to new fibre
The super boring method for mixing laminate of Vygen category.
In order to solve the technical problem, the technical scheme is that：
A kind of super drilling equipment for mixing laminate of fibre metal, including insulation system, cooling recirculation system, drilling system and
Alignment system, insulation system include body of thermal insulating box (10), and cooling recirculation system includes liquid nitrogen delivery pipe (3) and MQL delivery pipes
(11), drilling system includes numerically controlled machine (5), subbolster (6), dedicated tool (8) and Digit Control Machine Tool main shaft
(9), alignment system includes C-type clamp pincers (7)；Numerically controlled machine (5), Digit Control Machine Tool main shaft (9) are arranged on body of thermal insulating box
(10) in, body of thermal insulating box (10) perforate is passed through liquid nitrogen delivery pipe (3) and MQL delivery pipes (11)；Subbolster (6) is placed on numerical control
On platen (5), sample (4) is close to subbolster (6) above, then clamps (7) by sample (4) and auxiliary with C-type clamp
Backing plate (6) is fixed on numerically controlled machine (5)；Dedicated tool (8) is arranged on Digit Control Machine Tool main shaft (9)；Special cutter
Tool (8) is TiAlN cutting tool coated with hard alloy, and its drift angle is 120 °, and helical angle is 30 °.
The super drilling equipment for mixing laminate of described fibre metal, the bottom surface of sample (4) and subbolster (6) are adhesive in one
Rise, subbolster (6) includes the wooden backing plate of convex single-curvature hard slippery, recessed single-curvature hard slippery plastic base plate, double single-curvatures
Hard slippery plastic base plate；The top surface shape of subbolster (6) is determined by the bottom shape of sample (4).
The boring method of the super drilling equipment for mixing laminate of described fibre metal, comprises the following steps：
1), mix fibre metal is super laminate using numerical control mill cutting method and be machined to target size；
2) numerically controlled machine, cleaning subbolster surface, are cleaned；Fibre metal is surpassed by alignment system and mixes laminate
Carry out clamping, positioning；
3), clamping dedicated tool, it is ensured that tool surface is sharp, and tool surface must not have an impact the defects of performance；
4) liquid nitrogen, is passed through, working temperature is reduced, is then turned on micro lubricating；
5), drilled using specific drilling parameter；
6) drilling situation, is checked, carries out the work such as deburring and cleaning, implements nondestructive analysis.
Described boring method, the dedicated tool in the step 3) is TiAlN cutting tool coated with hard alloy, and its drift angle is
120 °, helical angle is 30 °.
Described boring method, liquid nitrogen is passed through in the step 4), opens cooling recirculation system, reduced working temperature, be
Drilling process provides good heat exchange conditions, reduces tool wear and fire damage caused by cutting heat.
Described boring method, the special drilling parameter in the step 5) are the speed of mainshaft in 7500rpm-10000rpm
Between, feed speed is between 0.10mm/rev-0.15mm/rev.
Beneficial effect：
Asked 1. the present invention can effectively solve the delamination damage in the super intermixed layer twist drill hole of the tencel metal, metallic bur power etc.
Topic, significantly improves the long-time stability of the veneer structure, while takes into account drilling efficiency, has higher engineering application value.
2. the present invention is using the TiAlN coated cutting tools of larger drift angle, higher drift angle can obviously reduce hair when aluminium alloy drills
Thorn.In addition, coated cutting tool will improve the shape of burr.
3. subbolster is positioned in the drilling region below workpiece in the drilling equipment of the present invention, because cutter drills through work
Pierced after part in backing plate, avoid the rapid drawdown of Tool in Cutting power, can significantly alleviate release effect when cutter drills out, reduce outlet
Burr, and backing plate can be designed according to the shape of laminate workpiece, there is the advantages of cost is low, flexibility is high.
4. the present invention uses insulation system and cooling recirculation system, wherein insulation system uses vacuum heat-insulating plate, and cooling follows
The mode that loop system is combined using liquid nitrogen cooling and micro lubricating mode (MQL), wherein, micro lubricating mode is drilling process
Good heat exchange conditions are provided, reduce the tool wear caused by cutting heat is too high and fibrous matrix fire damage, are improved
Borehole accuracy, and at low ambient temperatures, more preferable surface roughness, hole machined quality and longer cutter longevity can be obtained
Life.
5. the present invention is using the speed of mainshaft between 7500rpm-10000rpm, feed speed is in 0.10mm/rev-
Cutting parameter between 0.15mm/rev, be applicable to different structure fibre metal it is super mix laminate, delamination damage can be avoided
The problems such as.
6. the effect that C-type clamp clamps in the present invention is to avoid the relative movement of cutter and workpiece in boring procedure, ensure drilling
Precision.
Brief description of the drawings
Fig. 1 is the dedicated tool schematic diagram of the present invention.
Fig. 2 is the special purpose device schematic diagram of the present invention.
Fig. 3 is the convex wooden backing plate of single-curvature hard slippery of the present invention.
Fig. 4 is the recessed single-curvature hard slippery plastic base plate of the present invention.
Fig. 5 is double single-curvature hard slippery plastic base plates of the present invention.
Fig. 6 is the flow chart of boring method of the present invention.
In Fig. 1,1- main cutting edges, 2- chisel edges.
In Fig. 2,3- liquid nitrogen delivery pipe, 4- samples, 5- numerically controlled machines, 6- subbolsters, 7-C types clamp, 8- are special
With cutter, 9- Digit Control Machine Tools main shaft, 10- body of thermal insulating box, 11-MQL delivery pipes.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
The super drilling equipment for mixing laminate of fibre metal includes insulation system, cooling recirculation system, drilling system and positioning
System, wherein insulation system include body of thermal insulating box 10, and cooling recirculation system includes liquid nitrogen delivery pipe 3 and MQL delivery pipes 11, drilling
System includes numerically controlled machine 5, subbolster 6, dedicated tool 8 and Digit Control Machine Tool main shaft 9, and alignment system includes c-type
Clamp 7.
Numerically controlled machine 5, Digit Control Machine Tool main shaft 9 are arranged in body of thermal insulating box 10, and the perforate of body of thermal insulating box 10 is passed through
Liquid nitrogen delivery pipe 3 and MQL delivery pipes 11.Subbolster 6 is placed on numerically controlled machine 5, and sample 4 is close to subbolster
Above 6, then sample 4 and subbolster 6 are fixed on numerically controlled machine 5 with C-type clamp pincers 7.Dedicated tool is arranged on
On Digit Control Machine Tool main shaft 9.Dedicated tool 8 is TiAlN cutting tool coated with hard alloy, and its drift angle is 120 °, and helical angle is 30 °.
Embodiment 1
1. numerical control mill cutting method is used by the sheet fabrication of 3/2 laminate to target size；
2. cleaning platform, clean pad surfaces；By alignment system clamping, positioning on this drilling equipment by laminate；
3. clamping dedicated tool, it is ensured that tool surface is sharp, need to be sharpened if not sharp；
4. being passed through liquid nitrogen, working temperature is reduced to 5 DEG C, is then turned on micro lubricating；
5. using the speed of mainshaft, feed speed 0.10mm/rev cutting parameter is drilled for 7500rpm, aperture is
4.1mm；
6. checking drilling situation, the work such as deburring and cleaning is carried out, implements nondestructive analysis.
Embodiment 2
1. the convex curvature part of 4/3 laminate is machined to by target size using numerical control mill cutting method；
2. cleaning platform, clean pad surfaces；Curvature part is gluing on backing plate, by alignment system by laminate in this brill
Clamping, positioning on aperture apparatus；It is the convex wooden backing plate of single-curvature hard slippery in Fig. 3, the shape of backing plate is determined by workpiece shapes；
3. clamping dedicated tool, it is ensured that tool surface is sharp, need to be sharpened if not sharp；
4. being passed through liquid nitrogen, working temperature is reduced to 0 DEG C, is then turned on micro lubricating；
5. using the speed of mainshaft, feed speed 0.15mm/rev cutting parameter is drilled for 10000rpm, aperture is
4.1mm；
6. checking drilling situation, the work such as deburring and cleaning is carried out, implements nondestructive analysis.
Embodiment 3
1. the concave curvature part of 3/2 laminate is machined to by target size using numerical control mill cutting method；
2. cleaning platform, clean pad surfaces；Curvature part is gluing on backing plate, by alignment system by laminate in this brill
Clamping, positioning on aperture apparatus；It is recessed single-curvature hard slippery plastic base plate in Fig. 4, the shape of backing plate is determined by workpiece shapes；
3. clamping dedicated tool, it is ensured that tool surface is sharp, need to be sharpened if not sharp；
4. being passed through liquid nitrogen, working temperature is reduced to 5 DEG C, is then turned on micro lubricating；
5. using the speed of mainshaft, feed speed 0.10mm/rev cutting parameter is drilled for 7500rpm, aperture is
4.1mm；
6. checking drilling situation, the work such as deburring and cleaning is carried out, implements nondestructive analysis.
Embodiment 4
1. the hyperbolicity part of 5/4 laminate is machined to by target size using numerical control mill cutting method；
2. cleaning platform, clean pad surfaces；Curvature part is gluing on backing plate, by alignment system by laminate in this brill
Clamping, positioning on aperture apparatus；It is double single-curvature hard slippery plastic base plates in Fig. 5, the shape of backing plate is determined by workpiece shapes；
3. clamping dedicated tool, it is ensured that tool surface is sharp, need to be sharpened if not sharp；
4. being passed through liquid nitrogen, working temperature is reduced to 0 DEG C, is then turned on micro lubricating；
5. using the speed of mainshaft, feed speed 0.15mm/rev cutting parameter is drilled for 10000rpm, aperture is
6.1mm；
6. checking drilling situation, the work such as deburring and cleaning is carried out, implements nondestructive analysis.
After implementing drilling under each working condition, the aperture in each hole is measured, measured in a different direction
4 values are obtained, and calculate its dispersion.Dispersion high hole circularity in aperture is relatively low, i.e., drilling quality is poor.Experimental data is as follows：
Wherein, operating mode 7 is embodiment 1；High-speed steel tool is used in operating mode 1, other are the same as embodiment 1；It is not passed through in operating mode 2
Liquid nitrogen, other are the same as embodiment 1；Micro lubricating is not used in operating mode 3, other are the same as embodiment 1；Backing plate is not used in operating mode 4, other
With embodiment 1, under the operating mode except aperture it is discrete it is larger in addition to, drilling exit be layered；It is using the speed of mainshaft in operating mode 5
15000rpm, cutting speed 0.15mm/rev, other are the same as embodiment 1；High-speed steel tool is used in operating mode 6, the speed of mainshaft is
15000rpm, cutting speed 0.15mm/rev, is not passed through liquid nitrogen, and micro lubricating is not used, and backing plate is not used, and other are the same as implementation
Example 1.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (6)
- A kind of 1. super drilling equipment for mixing laminate of fibre metal, it is characterised in that including insulation system, cooling recirculation system, Drilling system and alignment system, insulation system include body of thermal insulating box (10), cooling recirculation system include liquid nitrogen delivery pipe (3) and MQL delivery pipes (11), drilling system include numerically controlled machine (5), subbolster (6), dedicated tool (8) and Digit Control Machine Tool Main shaft (9), alignment system include C-type clamp pincers (7)；Numerically controlled machine (5), Digit Control Machine Tool main shaft (9) are arranged on exhausted In hot tank body (10), body of thermal insulating box (10) perforate is passed through liquid nitrogen delivery pipe (3) and MQL delivery pipes (11)；Subbolster (6) is placed On numerically controlled machine (5), sample (4) is close to subbolster (6) above, then clamps (7) by sample (4) with C-type clamp It is fixed on subbolster (6) on numerically controlled machine (5)；Dedicated tool (8) is arranged on Digit Control Machine Tool main shaft (9)； Dedicated tool (8) is TiAlN cutting tool coated with hard alloy, and its drift angle is 120 °, and helical angle is 30 °.
- 2. the super drilling equipment for mixing laminate of fibre metal according to claim 1, it is characterised in that the bottom of sample (4) Face and subbolster (6) are glued together, and it is hard that subbolster (6) includes the wooden backing plate of convex single-curvature hard slippery, recessed single-curvature Matter smooth plastics backing plate, double single-curvature hard slippery plastic base plates；The top surface shape of subbolster (6) by sample (4) bottom surface Shape determines.
- 3. the boring method of the super drilling equipment for mixing laminate of fibre metal according to claim 1, it is characterised in that bag Include following steps：1), mix fibre metal is super laminate using numerical control mill cutting method and be machined to target size；2) numerically controlled machine, cleaning subbolster surface, are cleaned；The super laminate that mixes of fibre metal is carried out by alignment system Clamping, positioning；3), clamping dedicated tool, it is ensured that tool surface is sharp, and tool surface must not have an impact the defects of performance；4) liquid nitrogen, is passed through, working temperature is reduced, is then turned on micro lubricating；5), drilled using specific drilling parameter；6) drilling situation, is checked, carries out the work such as deburring and cleaning, implements nondestructive analysis.
- 4. boring method according to claim 3, it is characterised in that：Dedicated tool in the step 3) applies for TiAlN Layer hard alloy cutter, its drift angle are 120 °, and helical angle is 30 °.
- 5. boring method according to claim 3, it is characterised in that：Liquid nitrogen is passed through in the step 4), cooling is opened and follows Loop system, working temperature is reduced, be that good heat exchange conditions are provided in drilling process, reduce tool wear caused by cutting heat And fire damage.
- 6. boring method according to claim 3, it is characterised in that：Special drilling parameter in the step 5) is main shaft Rotating speed is between 7500rpm-10000rpm, and feed speed is between 0.10mm/rev-0.15mm/rev.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710590018.5A CN107378038A (en) | 2017-07-19 | 2017-07-19 | A kind of super boring method and device for mixing laminate of fibre metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710590018.5A CN107378038A (en) | 2017-07-19 | 2017-07-19 | A kind of super boring method and device for mixing laminate of fibre metal |
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| CN107378038A true CN107378038A (en) | 2017-11-24 |
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ID=60339360
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| CN201710590018.5A Pending CN107378038A (en) | 2017-07-19 | 2017-07-19 | A kind of super boring method and device for mixing laminate of fibre metal |
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Citations (5)
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|---|---|---|---|---|
| US20060039767A1 (en) * | 2004-08-23 | 2006-02-23 | Osg Corporation | Carbide drill capable of drilling hole with reduced degree of work hardening |
| CN104057301A (en) * | 2014-06-13 | 2014-09-24 | 中山市今世为工业机器人科技有限公司 | Automatic drilling and tapping system |
| CN205289826U (en) * | 2016-01-12 | 2016-06-08 | 江山显进机电科技服务有限公司 | Lift bench drill is used in mould production |
| CN205464428U (en) * | 2016-01-20 | 2016-08-17 | 浙江冠杰科技有限公司 | Bench drill is used in production of over -and -under type mould with mirror layer |
| CN106475591A (en) * | 2016-09-27 | 2017-03-08 | 西北工业大学 | Fibrous composite/metallic stacked structure low temperature punching device and method |
-
2017
- 2017-07-19 CN CN201710590018.5A patent/CN107378038A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060039767A1 (en) * | 2004-08-23 | 2006-02-23 | Osg Corporation | Carbide drill capable of drilling hole with reduced degree of work hardening |
| CN104057301A (en) * | 2014-06-13 | 2014-09-24 | 中山市今世为工业机器人科技有限公司 | Automatic drilling and tapping system |
| CN205289826U (en) * | 2016-01-12 | 2016-06-08 | 江山显进机电科技服务有限公司 | Lift bench drill is used in mould production |
| CN205464428U (en) * | 2016-01-20 | 2016-08-17 | 浙江冠杰科技有限公司 | Bench drill is used in production of over -and -under type mould with mirror layer |
| CN106475591A (en) * | 2016-09-27 | 2017-03-08 | 西北工业大学 | Fibrous composite/metallic stacked structure low temperature punching device and method |
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