CN107498881A - A kind of carbon fibre reinforced plastic thermoplastic laser heats welding technology - Google Patents
A kind of carbon fibre reinforced plastic thermoplastic laser heats welding technology Download PDFInfo
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- CN107498881A CN107498881A CN201710694885.3A CN201710694885A CN107498881A CN 107498881 A CN107498881 A CN 107498881A CN 201710694885 A CN201710694885 A CN 201710694885A CN 107498881 A CN107498881 A CN 107498881A
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- laser
- reinforced plastic
- fibre reinforced
- carbon fibre
- thermoplastic
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/028—Non-mechanical surface pre-treatments, i.e. by flame treatment, electric discharge treatment, plasma treatment, wave energy or particle radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/721—Fibre-reinforced materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/94—Measuring or controlling the joining process by measuring or controlling the time
- B29C66/944—Measuring or controlling the joining process by measuring or controlling the time by controlling or regulating the time
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
Abstract
The present invention provides a kind of carbon fibre reinforced plastic thermoplastic laser hot melt welding technology, laser surface pretreatment first will be carried out to carbon fibre reinforced plastic, obtain uniform network structure, then laser welding process is just carried out, by carbon fibre reinforced plastic and the overlapping discharge of thermoplastic, and carry out positioning laser welding with pressure fixing position, and to thermoplastic and pretreatment thermoplastic.The present invention offer above method overcomes existing carbon fibre reinforced plastic thermoplastic interconnection technique and the poor technological deficiency of manufacturability be present, extra binder need not be used after carbon fibre reinforced plastic is pre-processed by realizing, without the technique effect subsequently cleared up, and the weld properties obtained are excellent, welding efficiency is high, reduces manufacturing cost.
Description
Technical field
The present invention relates to polymer composite manufacture field, and in particular to a kind of carbon fibre reinforced plastic-thermoplasticity modeling
Expect laser hot melt welding technology.
Background technology
With the development of science and technology, the progress in epoch, laser slowly steps into from a unreachable high-tech product
Among the life of people.The application of laser is very extensive, is such as used for the fields such as science and technology, medical science, industry, communication.Known to us
Have:Fiber optic communication, laser spectrum, laser cutting, laser welding, laser cutting bed, laser marking, laser embroidery, laser ranging, swash
Optical radar, laser weapon, laser disc, radium-shine beauty, radium-shine sweep anchor etc..High polymer material have that density is small, intensity is high and
The advantages that corrosion resistance is good, application in the industry are increasingly extensive.Can not be by once extruding for baroque plastic products
Shaping, need to be connected each part by interconnection technique.With Conventional attachment methods (Vibration welding and hot plate welding) phase
Than laser welding has the advantages that speed is fast, and surface forming quality is good, and favor is enjoyed in high-end manufacturing industry.
The example of more material connections is more common in automotive trim manufacturing field, high-end thermmohardening carbon fibre reinforced plastic member
Part is frequently used.The advanced composite materials that carbon fibre reinforced plastic is carbon fiber and various resin compoundeds form, carbon fiber
Reinforced plastics is often combined with inexpensive thermoplastic element, so as to save production cost.Thermosetting resin is because of its big point
The cross coupling structure of son, without having meltability, therefore only carbon fibre reinforced plastic can be welded on thermoplastic
Together.The melting temperature of thermoplastic and carbon fibre reinforced plastic differs greatly, and this can also prevent its generation from combining closely.Mesh
Before, more material connections, the especially connection of carbon fibre reinforced plastic and thermoplastic often through bonding or mechanically connect
（For example, riveting）To realize.However, existing interconnection technique technique existing defects, for example, it is desired to which the long-time of cleaning adds
Work, using binder and extra cohere medium etc., or the increased additional weight of connecting element institute.
Therefore, laser welding technology is applied into carbon fibre reinforced plastic and thermoplastic, realizes that fibre reinforced is moulded
Material is effectively connected with thermoplastic, promotes related more material interconnection technique developmental researches significant.
The content of the invention
Cleaning for a long time be present, using glutinous for carbon fibre reinforced plastic in the prior art and thermoplastic interconnection technique
The defective workmanships such as mixture, the present invention proposes a kind of carbon fibre reinforced plastic-thermoplastic laser hot melt welding technology, first fine to carbon
Tie up reinforced plastics and carry out laser surface pretreatment, obtain uniform network structure, then just carry out laser welding process, carbon is fine
Tie up reinforced plastics and thermoplastic folded array, and product is obtained with pressure fixing position, then by laser welding.
To solve the above problems, the present invention uses following technical scheme：
A kind of carbon fibre reinforced plastic-thermoplastic laser hot melt welding technology, specific method are as follows：
（1）The network structure of preparation pre-set dimension on soldering face is treated in carbon fibre reinforced plastic using laser boring technique, is obtained
Network structure carbon fibre reinforced plastic；
（2）By step（1）What is obtained treats that soldering face treats that soldering face is bonded to form binding face with the thermoplastic；
（3）Using two rank isostatic pressure, the binding face is compacted, it is right using laser welding technology while pressure is applied
The binding face carries out soldering；
（4）It is slowly cooled to room temperature acquisition welding product.
Preferably, laser power used is 100-3000W/cm in the laser boring technique2。
Preferably, the laser is semiconductor laser or gas laser.
Preferably, the mesh areas gross area treats that soldering face area ratio is 1 with described in the network structure:3-20, mesh
It is evenly distributed on described treat on soldering face.
Preferably, the mesh form is one kind in circle, triangle, quadrangle, pentagon.
Preferably, in step（3）In, two rank isostatic pressure of use are specially：First rank pressure is 2-6MPa, second-order
Pressure is 4-8MPa.
Preferably, in step（3）Described in laser welding power be 1000-3000W/cm2, weld interval is 0.2-3 points
Clock.
Preferably, in step（4）Middle Slow cooling speed is less than 1 DEG C/h.
The present invention provides a kind of carbon fibre reinforced plastic-thermoplastic laser hot melt welding technology, compared with prior art,
The characteristics of it is protruded and excellent effect are：
1st, a kind of carbon fibre reinforced plastic provided by the invention-thermoplastic laser hot melt welding technology, first will increase to carbon fiber
Strong plastics carry out laser surface pretreatment, obtain uniform network structure, then just carry out laser welding process, carbon fiber is increased
Strong plastics and the overlapping discharge of thermoplastic, and use pressure fixing position so that thermoplastic is with pre-processing thermoplastic
Laser welding is positioned, the poor technological deficiency of existing interconnection technique manufacturability is overcome, is located in advance in carbon fibre reinforced plastic
Extra binder need not be used after reason, without follow-up cleaning, and will not additionally increase connecting element weight.
2nd, scheme carbon fibre reinforced plastic disclosed by the invention treats that soldering veil pore size distribution is uniform, by reference to plane tie
Applying pressure and carry out sweat soldering, thermoplastic, which melts, to be inserted among mesh of the fibre reinforced plastics through laser pre-treated,
Effectively diffusion can be carried out between carbon fibre reinforced plastic to fuse, jointing good airproof performance, jointing strength character is notable
Higher than the intensity of the connector obtained by bonding or other mechanical connections, product stability in use effectively improves.
3rd, more material interconnection technique methods are simple disclosed in this programme, improve welding efficiency, reduce manufacturing cost.
Embodiment
Below by way of embodiment, the present invention is described in further detail, but this should not be interpreted as to the present invention
Scope be only limitted to following example.In the case where not departing from above method thought of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
（1）The carbon fibre reinforced plastic that size is 30*30*30cm and the thermoplastic that size is 20*30*30cm are chosen, will
Carbon fibre reinforced plastic and thermoplastic treat that soldering face carries out polishing cleaning, obtain and clean smooth treat soldering surface.Then,
Treat to be pre-processed on soldering face in carbon fibre reinforced plastic using laser boring technique.Laser boring technique in the application is adopted
Laser can be that the semiconductors such as gallium arsenide laser, CdS laser, phosphatization indium laser, zinc sulphide laser swash
Optical device, or be he-Ne laser, argon ion laser, carbon dioxide laser, He-Cd and copper vapor laser
Device, laser boring technique in the present embodiment preferably use gallium arsenide laser, and conciliation laser power is 100W/cm2, it is fine in carbon
Dimension reinforced plastics treats network structure processed on soldering face, and network structure is 50mm by the standby size being evenly distributed on the soldering face for the treatment of2
Circular mesh form, the circular mesh areas gross area and treat soldering face area ratio be 1:20, obtain to be welded with network structure
The carbon fibre reinforced plastic in conjunction face；
（2）By step（1）What is obtained treats that soldering face treats that soldering face is bonded to form binding face with the thermoplastic；
（3）Using two rank isostatic pressure, the first rank pressure is 2MPa, and second-order pressure is 8MPa, and the binding face is compacted,
While applying pressure, using laser welding technology, setting laser power is 1000W, and weld interval is 0.2 minute, to described
Binding face carries out soldering；
（4）The first rank of removal isostatic pressure is after 1 minute, removal second-order isostatic pressure, is less than 1 DEG C/h in cooling velocity
Under, it is slowly cooled to room temperature acquisition welding product.
Mechanics Performance Testing is carried out to preparing welding product welding point in embodiment, tensile shear strength is
20.10MPa, fracture position are located at commissure mother metal.
Embodiment 2
（1）The carbon fibre reinforced plastic that size is 10*10*10cm and the thermoplastic that size is 20*30*30cm are chosen, will
Carbon fibre reinforced plastic and thermoplastic treat that soldering face carries out polishing cleaning, obtain and clean smooth treat soldering surface.Then,
Treat to be pre-processed on soldering face in carbon fibre reinforced plastic using laser boring technique.Laser boring technique in the application is adopted
Laser can be that the semiconductors such as gallium arsenide laser, CdS laser, phosphatization indium laser, zinc sulphide laser swash
Optical device, or be he-Ne laser, argon ion laser, carbon dioxide laser, He-Cd and copper vapor laser
Device, laser boring technique in the present embodiment preferably use he-Ne laser, and conciliation laser power is 3000W/cm2, it is fine in carbon
Dimension reinforced plastics treats network structure processed on soldering face, and network structure is 100mm by the standby size being evenly distributed on the soldering face for the treatment of2
Square mesh form, the square mesh areas gross area and treat soldering face area ratio be 1:15, obtain to be welded with network structure
The carbon fibre reinforced plastic in conjunction face；
（2）By step（1）What is obtained treats that soldering face treats that soldering face is bonded to form binding face with the thermoplastic；
（3）Using two rank isostatic pressure, the first rank pressure is 3MPa, and second-order pressure is 8MPa, and the binding face is compacted,
While applying pressure, using laser welding technology, setting laser power is 2000W, and weld interval is 0.2 minute, to described
Binding face carries out soldering；
（4）The first rank of removal isostatic pressure is after 5 minutes, removal second-order isostatic pressure, is less than 1 DEG C/h in cooling velocity
Under, it is slowly cooled to room temperature acquisition welding product.
Mechanics Performance Testing is carried out to preparing welding product welding point in embodiment, tensile shear strength is
21.25MPa, fracture position are located at commissure mother metal.
Embodiment 3
（1）The carbon fibre reinforced plastic that size is 1*30*30cm and the thermoplastic that size is 10*10*10cm are chosen, by carbon
Fibre reinforced plastics and thermoplastic treat that soldering face carries out polishing cleaning, obtain and clean smooth treat soldering surface.Then, adopt
Treat to be pre-processed on soldering face in carbon fibre reinforced plastic with laser boring technique.Laser boring technique in the application uses
Laser can be the semiconductor laser such as gallium arsenide laser, CdS laser, phosphatization indium laser, zinc sulphide laser
Device, or be he-Ne laser, argon ion laser, carbon dioxide laser, He-Cd and copper vapor laser,
Laser boring process selection carbon dioxide laser in the present embodiment, conciliation laser power are 500W/cm2, in carbon fiber
Reinforced plastics treats network structure processed on soldering face, and network structure is 200mm's by the standby size being evenly distributed on the soldering face for the treatment of
Triangle mesh is formed, and the circular mesh areas gross area is with treating that soldering face area ratio is 1:15, obtain to be welded with network structure
The carbon fibre reinforced plastic in conjunction face；
（2）By step（1）What is obtained treats that soldering face treats that soldering face is bonded to form binding face with the thermoplastic；
（3）Using two rank isostatic pressure, the first rank pressure is 5MPa, and second-order pressure is 5MPa, and the binding face is compacted,
While applying pressure, using laser welding technology, setting laser power is 1500W, and weld interval is 1.5 minutes, to described
Binding face carries out soldering；
（4）The rank isostatic pressure of removal two, in the case where cooling velocity is less than 1 DEG C/h, it is slowly cooled to room temperature acquisition welding product.
Mechanics Performance Testing is carried out to preparing welding product welding point in embodiment, tensile shear strength is
18.05MPa, fracture position are located at commissure mother metal.
Embodiment 4
（（1）The carbon fibre reinforced plastic that size is 30*30*30cm and the thermoplastic that size is 20*30*30cm are chosen, will
Carbon fibre reinforced plastic and thermoplastic treat that soldering face carries out polishing cleaning, obtain and clean smooth treat soldering surface.Then,
Treat to be pre-processed on soldering face in carbon fibre reinforced plastic using laser boring technique.Laser boring technique in the application is adopted
Laser can be that the semiconductors such as gallium arsenide laser, CdS laser, phosphatization indium laser, zinc sulphide laser swash
Optical device, or be he-Ne laser, argon ion laser, carbon dioxide laser, He-Cd and copper vapor laser
Device, laser boring process selection argon ion laser in the present embodiment, conciliation laser power are 1000W/cm2, it is fine in carbon
Dimension reinforced plastics treats network structure processed on soldering face, and network structure is 640mm by the standby size being evenly distributed on the soldering face for the treatment of
Pentagon mesh form, the pentagon mesh areas gross area and treat soldering face area ratio be 1:5, obtain treating with network structure
The carbon fibre reinforced plastic in soldering face；
（2）By step（1）What is obtained treats that soldering face treats that soldering face is bonded to form binding face with the thermoplastic；
（3）Using two rank isostatic pressure, the first rank pressure is 3MPa, and second-order pressure is 7MPa, and the binding face is compacted,
While applying pressure, using laser welding technology, setting laser power is 2500W, and weld interval is 1.7 minutes, to described
Binding face carries out soldering；
（4）The first rank of removal isostatic pressure is after 0.5 minute, removal second-order isostatic pressure, is less than 1 DEG C/h in cooling velocity
Under, it is slowly cooled to room temperature acquisition welding product.
Mechanics Performance Testing is carried out to preparing welding product welding point in embodiment, tensile shear strength is
23.55MPa, fracture position are located at commissure mother metal.
Embodiment 5
（1）The carbon fibre reinforced plastic that size is 2*2*50cm and the thermoplastic that size is 2*2*10cm are chosen, carbon is fine
Dimension reinforced plastics and thermoplastic treat that soldering face carries out polishing cleaning, obtain and clean smooth treat soldering surface.Then, use
Laser boring technique is treated to be pre-processed on soldering face in carbon fibre reinforced plastic.What the laser boring technique in the application used
Laser can be the semiconductor lasers such as gallium arsenide laser, CdS laser, phosphatization indium laser, zinc sulphide laser
Part, or be he-Ne laser, argon ion laser, carbon dioxide laser, He-Cd and copper vapor laser,
Laser boring process selection argon ion laser in the present embodiment, conciliation laser power are 1800W/cm2, in fibre reinforced
Plastics treat network structure processed on soldering face, the circular net that network structure is 30mm by the standby size being evenly distributed on the soldering face for the treatment of
Hole is formed, and the circular mesh areas gross area is with treating that soldering face area ratio is 1:10, obtain the carbon that there is network structure to treat soldering face
Fibre reinforced plastics；
（2）By step（1）What is obtained treats that soldering face treats that soldering face is bonded to form binding face with the thermoplastic；
（3）Using two rank isostatic pressure, the first rank pressure is 2MPa, and second-order pressure is 8MPa, and the binding face is compacted,
While applying pressure, using laser welding technology, setting laser power is 3000W, and weld interval is 0.2 minute, to described
Binding face carries out soldering；
（4）The first rank of removal isostatic pressure is after 10 minutes, removal second-order isostatic pressure, is less than 1 DEG C/h in cooling velocity
Under, it is slowly cooled to room temperature acquisition welding product.
Mechanics Performance Testing is carried out to preparing welding product welding point in embodiment, tensile shear strength is
29.05MPa, fracture position are located at commissure mother metal.
Claims (8)
1. a kind of carbon fibre reinforced plastic-thermoplastic laser hot melt welding technology, it is characterised in that specific method is as follows：
（1）Treat what the mesh that a pre-set dimension is prepared on soldering face was formed in carbon fibre reinforced plastic using laser boring technique
Network structure, obtain the carbon fibre reinforced plastic that there is network structure to treat soldering face；
（2）By step（1）Obtained carbon fibre reinforced plastic network structure treats that soldering face is treated in soldering face with the thermoplastic
Fitting forms binding face；
（3）Using two rank isostatic pressure, the binding face is compacted, it is right using laser welding technology while pressure is applied
The binding face carries out soldering；
（4）Two rank isostatic pressure described in removal, is slowly cooled to room temperature acquisition welding product.
2. a kind of carbon fibre reinforced plastic-thermoplastic laser hot melt welding technology, its feature exist according to claim 1
In：Laser power used is 100-3000W/cm in the laser boring technique2。
3. a kind of carbon fibre reinforced plastic-thermoplastic laser hot melt welding technology, its feature exist according to claim 1
In：The laser is semiconductor laser or gas laser.
4. a kind of carbon fibre reinforced plastic-thermoplastic laser hot melt welding technology, its feature exist according to claim 1
In：The mesh areas gross area treats that soldering face area ratio is 1 with described in the network structure:3-20, mesh are evenly distributed on institute
State on the soldering face for the treatment of.
5. a kind of carbon fibre reinforced plastic-thermoplastic laser hot melt welding technology, its feature exist according to claim 4
In：The mesh form is one kind in circle, triangle, quadrangle, pentagon.
6. a kind of carbon fibre reinforced plastic-thermoplastic laser hot melt welding technology, its feature exist according to claim 1
In：In step（3）In, two rank isostatic pressure of use are specially：First rank pressure is 2-6MPa, and second-order pressure is 4-
8MPa。
7. a kind of carbon fibre reinforced plastic-thermoplastic laser hot melt welding technology, its feature exist according to claim 1
In：In step（3）Described in laser welding power be 1000-3000W/cm2, weld interval is 0.2-3 minutes.
8. a kind of carbon fibre reinforced plastic-thermoplastic laser hot melt welding technology, its feature exist according to claim 1
In：In step（4）Middle Slow cooling speed is less than 1 DEG C/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710694885.3A CN107498881A (en) | 2017-08-15 | 2017-08-15 | A kind of carbon fibre reinforced plastic thermoplastic laser heats welding technology |
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| CN201710694885.3A CN107498881A (en) | 2017-08-15 | 2017-08-15 | A kind of carbon fibre reinforced plastic thermoplastic laser heats welding technology |
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| CN1732083A (en) * | 2002-12-27 | 2006-02-08 | 东丽株式会社 | Laminate, electromagnetic-shielding molded product and manufacture method thereof |
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