CN109500485A - A kind of metal foamed aluminium sandwich material, processing method and processing unit (plant) - Google Patents
A kind of metal foamed aluminium sandwich material, processing method and processing unit (plant) Download PDFInfo
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- CN109500485A CN109500485A CN201811194563.3A CN201811194563A CN109500485A CN 109500485 A CN109500485 A CN 109500485A CN 201811194563 A CN201811194563 A CN 201811194563A CN 109500485 A CN109500485 A CN 109500485A
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- foamed aluminium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/123—Controlling or monitoring the welding process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/1245—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
- B23K20/1255—Tools therefor, e.g. characterised by the shape of the probe
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/129—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding specially adapted for particular articles or workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
- B23K20/227—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded with ferrous layer
- B23K20/2275—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded with ferrous layer the other layer being aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
- B23K20/233—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer
- B23K20/2333—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer one layer being aluminium, magnesium or beryllium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
- B23K20/233—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer
- B23K20/2336—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer both layers being aluminium
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Panels For Use In Building Construction (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a kind of metal foamed aluminium sandwich material, processing method and processing unit (plant)s.The processing method of the metal foamed aluminium sandwich material, it is characterized in that, the metal foamed aluminium sandwich material is formed by stacking by foam aluminium plate and panel material, is stirred friction processing in the panel material of the metal foamed aluminium sandwich material and the interface of foamed aluminium material；The parameter of the mixing yoghurt are as follows: rotation speed is 300~1180rpm, and forward speed is 30~120mm/min, and drafts is 0.2~0.3mm, and passage offset is 4~8mm.This method not only has the characteristics that simple process, controllability are strong and high yield rate is, it can be achieved that continuous productive process, large-scale production；It can also be obtained by this method low in cost, high-efficient, controllability is good, and bending resistance, shock resistance are good, the excellent foam aluminium sandwich material of sound absorption, sound insulation property, to instructing industrialized production foam aluminium sandwich material to have important reference value.
Description
Technical field
The invention belongs to structural composite material preparation technical fields, and in particular to a kind of metal foamed aluminium sandwich material plus
Work method and processing unit (plant).
Background technique
Foam aluminium sandwich material is with density is low, specific stiffness is high, energy absorption is good, damping characteristic is excellent, insulation, sound-proofing
Can be good the advantages that, it is widely used in the fields such as Aeronautics and Astronautics, ship, communications and transportation.Such as the fuselage, wing and tail of aircraft
The wing, the deck of boat of ship, bus vehicle body, tramcar vehicle body.
Currently, foam aluminium sandwich material preparation method mainly has gluing, soldering and presoma foaming.But use above-mentioned side
Method prepares foam aluminium sandwich material and there are problems.For example, the foam aluminium sandwich material of gluing preparation can not be in high temperature
Under the conditions of (> 200 DEG C) military service；It is prepared in foam aluminium sandwich materials process in method for brazing, solder can be introduced, be easy to cause foamed aluminium
Undesirable interfacial reaction occurs between laminboard layer and panel and solder, generates weld metal zone brittle intermetallic thing；Presoma foaming is not
Only complex process, and the foam aluminium sandwich scantling prepared is smaller.Therefore, for the foam aluminium sandwich of conventional method preparation
Material can not be on active service at high temperature, or introduce other materials, and undesirable interfacial reaction occurs, performance degradation etc. is caused to ask
Topic, urgent need develop it is a kind of prepare foam aluminium sandwich material and new method, with obtain interface cohesion it is good, without bad interfacial reaction, together
When the foam aluminium sandwich material with higher bending resistance, shock resistance and excellent sound absorption, sound insulation property.
Summary of the invention
In order to overcome defect existing for above-mentioned technology and deficiency, the object of the present invention is to provide a kind of metal foamed aluminium sandwiches
Material, processing method and processing unit (plant) are obtained at low cost with solving the bottleneck problem of conventional foam aluminium sandwich material preparation method
Honest and clean, high-efficient, controllability is good, and bending resistance, shock resistance are good, the excellent foam aluminium sandwich material of sound absorption, sound insulation property.
To achieve the goals above, the technical solution of the present invention is as follows:
A kind of processing method of metal foamed aluminium sandwich material, the metal foamed aluminium sandwich material is using foamed aluminium as core
Material, sheet metal are the sandwich structure of panel material, in the panel material and core material of the metal foamed aluminium sandwich material
Interface is stirred friction processing；
The parameter of the mixing yoghurt are as follows: rotation speed be 300~1180rpm, forward speed be 30~
120mm/min, drafts are 0.2~0.3mm, and passage offset is 4~8mm.
Optionally, the foam aluminium plate is closed-cell foam aluminium plate；
The closed-cell foam aluminium plate width is 100~2000mm, and a length of 100~3000mm, thickness is 2~50mm.
Optionally, the panel material includes aluminium, magnesium, steel, titanium or copper；
The metal decking material width is 100~2000mm, and a length of 100~3000mm, thickness is 1~8mm.
Optionally, the mixing yoghurt route is snakelike or scroll.
Optionally, during mixing yoghurt, the distance between two adjacent parallel processing axis are processing dress
Set the diameter of mixing needle.
Optionally, the panel material and core material before processing polish to its surface with sand paper.
Optionally, it specifically includes: selecting 6061 aluminum alloy plate materials, Q235 steel plate, AZ31 magnesium alloy plate and TA1 titanium alloy sheet
For panel material, porosity is 65%~75%, and pore mean diameters are the foam aluminium plate of 2~5mm；Then in panel material
Friction processing is stirred with the interface of foamed aluminium material；Mixing yoghurt parameter are as follows: rotation speed 750rpm advances
Speed is 35mm/min, and drafts 0.2mm, passage offset is 6mm；Rotation speed is 300rpm, forward speed 30mm/
Min, drafts 0.2mm, passage offset are 5mm；Rotation speed is 1180rpm, forward speed 60mm/min, drafts
For 0.3mm, passage offset is 5mm；Rotation speed is 650rpm, forward speed 120mm/min, drafts 0.3mm, road
Secondary offset is 4mm.
A kind of metal foamed aluminium sandwich material, the metal foamed aluminium sandwich material use metal foam of the present invention
The processing method of foam aluminium sandwich material is made, and specifically include: the two sides of foam aluminium plate is contacted with panel material, is all made of stirring
Friction, which is processed, is made foam aluminium sandwich material.
A kind of processing unit (plant) of metal foamed aluminium sandwich material, the processing unit (plant) realize metal foam of the present invention
The processing method of foam aluminium sandwich material, including the sequentially connected shaft shoulder and mixing needle, the shaft shoulder and mixing needle are cylinder
Type, the shaft shoulder diameter are 10~20mm, and the mixing needle diameter is 4~8mm, and length is 1~8mm.
Optionally, the shaft shoulder is the martensitic stain less steel shaft shoulder, the medium carbon steel shaft shoulder, the high-carbon steel shaft shoulder, the tool steel shaft shoulder
Or the high temperature alloy shaft shoulder, the mixing needle are martensitic stain less steel mixing needle, medium carbon steel mixing needle, high-carbon steel mixing needle, work
Have steel mixing needle or high temperature alloy mixing needle.
Advantages of the present invention:
1, the present invention substantially overcomes the shortcomings that traditional fabrication foam aluminium sandwich MATERIALS METHODS, uses mixing yoghurt side
Method is well combined panel material with core foamed aluminium material, it is suppressed that intermetallic between panel material and foamed aluminium material
The generation of object enables the intensity of sandwich material to guarantee, and fails caused by avoiding the variation because of material operating temperature,
The foamed aluminium board of larger size specification can also be produced simultaneously.
2, the present invention is using frictionally heating, being plasticized, squeezing during mixing yoghurt, stirring action, by panel material
Material and foamed aluminium board are combined closely, to obtain foam aluminium sandwich material.This method for preparing foamed aluminium not only simple process,
Controllability is strong and high yield rate, and can realize continuous productive process, large-scale production, to instructing industrialized production foam aluminium sandwich material
Material has important reference value.
Detailed description of the invention
Fig. 1 is a kind of metal foamed aluminium sandwich material, processing method, processing unit (plant) and its process flow chart of application；
Fig. 2 is that a kind of metal foamed aluminium sandwich material, processing method, processing unit (plant) and its processing unit (plant) structure of application are shown
It is intended to；
Fig. 3 is a kind of metallic aluminium foam aluminium sandwich of the processing method preparation of metal foamed aluminium sandwich material in embodiment 1
The comparison diagram of the bending strength of material；
Fig. 4 is a kind of metallic aluminium foam aluminium sandwich of the processing method preparation of metal foamed aluminium sandwich material in embodiment 1
The acoustic absorptivity (a) of material and sound reduction index (b) with frequency changing rule figure；
Fig. 5 is a kind of metallic steel foam aluminium sandwich of the processing method preparation of metal foamed aluminium sandwich material in embodiment 2
The comparison diagram of the bending strength of material；
Fig. 6 is a kind of metallic steel foam aluminium sandwich of the processing method preparation of metal foamed aluminium sandwich material in embodiment 2
The acoustic absorptivity (a) of material and sound reduction index (b) with frequency changing rule figure；
Fig. 7 is a kind of magnesium metal foam aluminium sandwich of the processing method preparation of metal foamed aluminium sandwich material in embodiment 3
The comparison diagram of the bending strength of material；
Fig. 8 is a kind of magnesium metal foam aluminium sandwich of the processing method preparation of metal foamed aluminium sandwich material in embodiment 4
The comparison diagram of the bending strength of material.
Specific embodiment
Metal foamed aluminium sandwich material of the invention are as follows: using foamed aluminium as core material, sheet metal is what panel material was formed
Sandwich structure, the interface of panel material and core material to metal foamed aluminium sandwich material are stirred friction processing；Herein
Interface be usually position that metal plate is bonded with foamed aluminium, both be preferably bonded backward two kinds of material layers extend it is certain
The position of distance, for example, mixing needle is processed from metal plate, mixing needle in being stirred friction welding (FW) process
Contact the foamed aluminium of metal plate and segment thickness simultaneously, using frictionally heating during mixing yoghurt, be plasticized, squeeze,
Stirring action combines closely panel material and foamed aluminium board, to obtain foam aluminium sandwich material；The ginseng of mixing yoghurt
Number are as follows: rotation speed is 300~1180rpm, and forward speed is 30~120mm/min, and drafts is 0.2~0.3mm, and passage is inclined
Shifting amount is 4~8mm.
The raw material of raw material selection and pretreatment, processing unit (plant) of the present invention when preparing metal foamed aluminium sandwich material selects
It is arranged with machined parameters specifically:
Raw material selection and pretreatment: the panel material of metal foamed aluminium sandwich material, for friction processing can be stirred
Material, such as common aluminium, magnesium, steel, titanium, copper, having a size of (100~2000) × (100~3000) × (1~8) mm (width x length
× thick)；The core material of metal foamed aluminium sandwich material is closed-cell foam aluminium plate, having a size of (100~2000) × (100~3000)
× (2~50) mm (width x length × thickness), porosity are 65%~75%, and pore mean diameters are 2~5mm；Sand is utilized before processing
Paper carries out surface polishing to aluminium sheet, makes roughness Ra≤10 μm on surface, and clean the surface after polishing with acetone, removes aluminium sheet
Greasy dirt, oxide and the impurity on surface are simultaneously dried.
The raw material of processing unit (plant) selects: the material of processing unit (plant) is mainly martensitic stain less steel, medium carbon steel, high-carbon steel, work
Have steel, high temperature alloy, processing unit (plant) includes the sequentially connected shaft shoulder and mixing needle, and the shaft shoulder and mixing needle are cylinder
Type, shaft shoulder diameter are 10~20mm, and cylindrical type mixing needle diameter is 4~8mm, and length is 1~8mm.
The setting of processing unit (plant) machined parameters: the rotation speed of mixing yoghurt is 300~1180rpm, and forward speed is
30~120mm/min, drafts are 0.2~0.3mm, and passage offset is 4~8mm.
In conjunction with the processing unit (plant) setting of the process flow chart and Fig. 2 of Fig. 1, concrete scheme of the invention is as follows:
Panel material after cleaning is placed on foamed aluminium board, panel material and foamed aluminium board is completely coincident, is used in combination
Fixture is clipped on workbench；Multi-pass all standing presentation " snakelike or scroll " agitating friction is carried out on panel material surface to add
Work, making the distance between two adjacent parallel processing axis is processing unit (plant) mixing needle diameter；By the panel material after processing
With foamed aluminium board entirety turn-over, make foamed aluminium board one side upward；It is placed again on the panel material and foamed aluminium board of whole turn-over
The panel material of one piece of same size carries out multi-pass all standing presentation " snakelike or scroll " mixing yoghurt, i.e., again
Foam aluminium sandwich material structure is made.
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Embodiment 1:
The embodiment is to prepare foam aluminium sandwich material by core material of closed-cell aluminum foam using 6061 aluminium alloys as panel material
Process.Specific step is as follows:
Raw material selection and pretreatment: take two pieces of 6061 aluminum alloy plate materials of 150mm × 140mm × 3mm and 150mm ×
140mm × 5mm, porosity 72%, pore mean diameters are the foam aluminium plate of 3mm；Surface is carried out to aluminium sheet with sand paper to beat
Mill makes roughness Ra≤10 μm on surface, and cleans the surface after polishing with acetone, removes greasy dirt, the oxide of surface of aluminum plate
With impurity and dry.
The raw material of processing unit (plant) selects: processing unit (plant) material is tungsten system high-speed steel (W18Cr4V), and shaft shoulder diameter is 18mm,
Cylindrical type mixing needle diameter is 6mm, length 3mm；
Machined parameters setting: the rotation speed of mixing yoghurt is 750rpm, forward speed 35mm/min, drafts
For 0.2mm, passage offset is 6mm.
Concrete scheme:
6061 aluminium alloy plates after cleaning are placed on foamed aluminium board, keep 6061 aluminium alloys and foamed aluminium board completely heavy
It closes, and is clipped on workbench with fixture；" snakelike " stirring of multi-pass all standing presentation is carried out on 6061 aluminium alloy plate surfaces to rub
Processing is wiped, making the distance between two adjacent parallel processing axis is processing unit (plant) mixing needle diameter；By 6061 after processing
Aluminium alloy plate and foamed aluminium board entirety turn-over make foamed aluminium board one side upward；In 6061 aluminium alloy plates and foam of whole turn-over
6061 aluminium alloy plates of one piece of same size are placed on aluminium sheet again, multi-pass all standing " snakelike " agitating friction is carried out again and adds
Work obtains foam aluminium sandwich material structure.
Embodiment 1 is successfully realized using 6061 aluminium alloys as panel material and prepares foamed aluminium by core material of closed-cell aluminum foam
The preparation process of sandwich material.As shown in figure 3, the bending load of foam aluminium sandwich material obtained is 691N, between 6061 aluminium
Panel (925N) and foamed aluminium (62N) are between the two.As shown in figure 4, the average sound absorption coefficient (a) of foam aluminium sandwich material and every
Sound index (b) is respectively 0.357,65.82dB, respectively higher than 6061 aluminium alloy panels (0.223,61.19dB) and foamed aluminium board
(0.251,50.70dB) corresponding index.Show that foam aluminium sandwich material made from this method has good sound absorption and sound insulation
Performance fully meets the requirement of engineer application.
Embodiment 2:
The example is to prepare foam aluminium sandwich material by core material of closed-cell aluminum foam using common Q235 steel plate as panel material
The process of material.Specific step is as follows:
Raw material selection and pretreatment: take two blocks of 150mm × 140mm × 3mm Q235 steel plates and 150mm × 140mm ×
5mm, porosity 72%, pore mean diameters are the foam aluminium plate of 3mm；Surface polishing is carried out to steel plate with sand paper, makes table
Roughness Ra≤10 μm in face, and the surface after polishing is cleaned with acetone, remove the greasy dirt, oxide and impurity of surface of steel plate simultaneously
Drying.
The raw material of processing unit (plant) selects: processing unit (plant) material is XF20T wolfram steel, and shaft shoulder diameter is 15mm, cylindrical type stirring
Needle diameter is 5mm, length 3mm；
Machined parameters setting: the rotation speed of mixing yoghurt is 300rpm, forward speed 30mm/min, drafts
For 0.2mm, passage offset is 5mm；
Concrete scheme:
Q235 steel plate after cleaning is placed on foamed aluminium board, Q235 steel plate and foamed aluminium board is completely coincident, is used in combination
Fixture is clipped on workbench；Multi-pass all standing presentation " snakelike " mixing yoghurt is carried out in Q235 surface of steel plate, makes two
The distance between adjacent parallel processing axis of item is processing unit (plant) mixing needle diameter；By the Q235 steel plate and foamed aluminium after processing
Plate entirety turn-over makes foamed aluminium board one side upward；It is identical as placing one piece on foamed aluminium board again in the Q235 steel plate of whole turn-over
The Q235 steel plate of specification carries out multi-pass all standing " snakelike " mixing yoghurt again, obtains foam aluminium sandwich material knot
Structure.
Embodiment 2 is successfully realized by panel material of Q235 steel plate and prepares by core material of closed-cell aluminum foam foamed aluminium folder
The preparation process of core material.As shown in figure 5, the bending load of foam aluminium sandwich material obtained is 1326N, between Q235 steel plate
Between (1473N) and the bending load of foamed aluminium board (62N).As shown in fig. 6, the average sound absorption coefficient of foam aluminium sandwich material
(a) and sound reduction index (b) is respectively 0.399,68.95dB, respectively higher than Q235 steel plate (0.223,62.85dB) and foamed aluminium
The corresponding index of plate (0.228,61.19dB).Show foam aluminium sandwich material made from this method have it is good sound absorption and every
Acoustic performance fully meets the requirement of engineer application.
Embodiment 3:
The embodiment is to prepare foam aluminium sandwich material by core material of closed-cell aluminum foam using AZ31 magnesium alloy plate as panel material
The process of material.Specific step is as follows:
Raw material selection and pretreatment: take two blocks of 150mm × 140mm × 4mm AZ31 magnesium alloys and 150mm × 140mm ×
6mm, porosity 75%, pore mean diameters are the foam aluminium plate of 5mm；Surface polishing is carried out to magnesium alloy plate with sand paper,
Make roughness Ra≤10 μm on surface, and clean the surface after polishing with acetone, removes greasy dirt, the oxide on magnesium alloy plate surface
With impurity and dry.
The raw material of processing unit (plant) selects: processing unit (plant) material is tungsten system high-speed steel (W18Cr4V), and shaft shoulder diameter is 16mm,
Cylindrical type mixing needle diameter is 5mm, length 4mm；
Machined parameters setting: the rotation speed of mixing yoghurt is 1180rpm, forward speed 60mm/min, pressure
Amount is 0.3mm, and passage offset is 5mm；
Concrete scheme:
AZ31 magnesium alloy plate after cleaning is placed on foamed aluminium board, keeps AZ31 magnesium alloy plate and foamed aluminium board completely heavy
It closes, and is clipped on workbench with fixture；Multi-pass all standing presentation " scroll " stirring is carried out on AZ31 magnesium alloy plate surface
Friction processing, making the distance between two adjacent parallel processing axis is processing unit (plant) mixing needle diameter；After processing
AZ31 magnesium alloy plate and foamed aluminium board entirety turn-over make foamed aluminium board one side upward；Whole turn-over AZ31 magnesium alloy plate with
The AZ31 magnesium alloy plate of one piece of same size is placed on foamed aluminium board again, multi-pass all standing " scroll " stirring is carried out again and rubs
Processing is wiped, foam aluminium sandwich material structure is obtained.
Embodiment 3 is successfully realized using AZ31 magnesium alloy plate as panel material and prepares foam by core material of closed-cell aluminum foam
The preparation process of aluminium sandwich material.As shown in fig. 7, the bending load of foam aluminium sandwich material obtained is 793N, between AZ31
Magnesium alloy plate (829N) and foamed aluminium board (62N) are between the two.It is good to show that foam aluminium sandwich material made from this method has
Bending strength, fully meet the requirement of engineer application.
Embodiment 4:
The embodiment is that the mistake of foam aluminium sandwich material is prepared using closed-cell aluminum foam as core material using TA1 titanium as panel material
Journey.Specific step is as follows:
Raw material selection and pretreatment: two pieces of 150mm × 140mm × 2mm TA1 titaniums and 150mm × 140mm × 6mm, hole are taken
Gap rate is 65%, and pore mean diameters are the foam aluminium plate of 3mm；Surface polishing is carried out to titanium alloy surface with sand paper, makes table
Roughness Ra≤10 μm in face, and the surface after cleaning polishing with acetone remove the greasy dirt on titanium alloy sheet surface, oxide and miscellaneous
Matter is simultaneously dried.
The raw material of processing unit (plant) selects: processing unit (plant) material is XF20T wolfram steel, and shaft shoulder diameter is 10mm, cylindrical type stirring
Needle diameter is 4mm, length 2mm；
Machined parameters setting: the rotation speed of mixing yoghurt is 650rpm, forward speed 120mm/min, pressure
Amount is 0.3mm, and passage offset is 4mm；
Concrete scheme:
TA1 titanium plate after cleaning is placed on foamed aluminium board, TA1 titanium plate and foamed aluminium board are completely coincident, and with folder
Tool is clipped on workbench；Multi-pass all standing presentation " snakelike " mixing yoghurt is carried out on TA1 titanium plate surface, makes two phases
The distance between adjacent parallel processing axis is processing unit (plant) mixing needle diameter；By after processing TA1 titanium plate and foamed aluminium board it is whole
Body turn-over makes foamed aluminium board one side upward；One piece of same size is placed again in the TA1 titanium plate of whole turn-over and foamed aluminium board
TA1 titanium plate carries out multi-pass all standing " snakelike " mixing yoghurt again, obtains foam aluminium sandwich material structure.
Embodiment 4 is successfully realized by panel material of TA1 titanium plate and prepares by core material of closed-cell aluminum foam foamed aluminium folder
The preparation process of core material.As shown in figure 8, the bending load of foam aluminium sandwich material obtained is 1327N, between TA1 titanium plate
Between (1532N) and the bending load of foamed aluminium board (62N).It is good to show that foam aluminium sandwich material made from this method has
Bending strength fully meets the requirement of engineer application.
Above-described embodiment, only presently preferred embodiments of the present invention, the practical range being not intended to limit the invention, thus it is all with
The equivalent variations that content described in the claims in the present invention is done should all be included within scope of the invention as claimed.
Claims (10)
1. a kind of processing method of metal foamed aluminium sandwich material, which is characterized in that the metal foamed aluminium sandwich material with
Foamed aluminium is core material, and sheet metal is the sandwich structure of panel material, in the panel material of the metal foamed aluminium sandwich material
The interface of material and core material is stirred friction processing；
The parameter of the mixing yoghurt are as follows: rotation speed is 300~1180rpm, and forward speed is 30~120mm/
Min, drafts are 0.2~0.3mm, and passage offset is 4~8mm.
2. the processing method of metal foamed aluminium sandwich material as described in claim 1, which is characterized in that the foamed aluminium board
Material is closed-cell foam aluminium plate；
The closed-cell foam aluminium plate width is 100~2000mm, and a length of 100~3000mm, thickness is 2~50mm.
3. the processing method of metal foamed aluminium sandwich material as described in claim 1, which is characterized in that the panel material
Including aluminium, magnesium, steel, titanium or copper；
The metal decking material width is 100~2000mm, and a length of 100~3000mm, thickness is 1~8mm.
4. the processing method of metal foamed aluminium sandwich material as described in claim 1, which is characterized in that the agitating friction
Processing route is snakelike or scroll.
5. the processing method of metal foamed aluminium sandwich material as claimed in claim 4, which is characterized in that in mixing yoghurt
In the process, two adjacent parallel the distance between processing axis are the diameter of processing unit (plant) mixing needle.
6. the processing method of metal foamed aluminium sandwich material as described in claim 1, which is characterized in that the panel material
It is polished before processing with sand paper its surface with core material.
7. the processing method of metal foamed aluminium sandwich material as described in claim 1, which is characterized in that specifically include: selecting
6061 aluminum alloy plate materials, Q235 steel plate, AZ31 magnesium alloy plate and TA1 titanium alloy sheet be panel material, porosity be 65%~
75%, pore mean diameters are the foam aluminium plate of 2~5mm；Then it is carried out in the interface of panel material and foamed aluminium material
Mixing yoghurt；Mixing yoghurt parameter are as follows: rotation speed 750rpm, forward speed 35mm/min, drafts are
0.2mm, passage offset are 6mm；Rotation speed is 300rpm, forward speed 30mm/min, drafts 0.2mm, passage
Offset is 5mm；Rotation speed is 1180rpm, forward speed 60mm/min, drafts 0.3mm, and passage offset is
5mm；Rotation speed is 650rpm, forward speed 120mm/min, drafts 0.3mm, and passage offset is 4mm.
8. a kind of metal foamed aluminium sandwich material, which is characterized in that the metal foamed aluminium sandwich material uses claim 1
The processing method of metal foamed aluminium sandwich material described in~7 is made, and specifically includes: the two sides of foam aluminium plate and panel material
Contact is all made of mixing yoghurt and foam aluminium sandwich material is made.
9. a kind of processing unit (plant) of metal foamed aluminium sandwich material, which is characterized in that the processing unit (plant) realizes claim 1
The processing method of metal foamed aluminium sandwich material described in~7, including the sequentially connected shaft shoulder and mixing needle, the shaft shoulder and
Mixing needle is cylindrical type, the shaft shoulder diameter be 10~20mm, the mixing needle diameter be 4~8mm, length be 1~
8mm。
10. the processing unit (plant) of metal foamed aluminium sandwich material as claimed in claim 9, which is characterized in that the shaft shoulder is
The martensitic stain less steel shaft shoulder, the medium carbon steel shaft shoulder, the high-carbon steel shaft shoulder, the tool steel shaft shoulder or the high temperature alloy shaft shoulder, the mixing needle
For martensitic stain less steel mixing needle, medium carbon steel mixing needle, high-carbon steel mixing needle, tool steel mixing needle or high temperature alloy mixing needle.
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