CN108297443A - A method of promoting thermoplastic composite and metal connection intensity - Google Patents

A method of promoting thermoplastic composite and metal connection intensity Download PDF

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Publication number
CN108297443A
CN108297443A CN201810069446.8A CN201810069446A CN108297443A CN 108297443 A CN108297443 A CN 108297443A CN 201810069446 A CN201810069446 A CN 201810069446A CN 108297443 A CN108297443 A CN 108297443A
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CN
China
Prior art keywords
metal
micro
laser
texture
thermoplastic composite
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Pending
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CN201810069446.8A
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Chinese (zh)
Inventor
盛立远
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Peking University Shenzhen Graduate School
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Peking University Shenzhen Graduate School
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Priority to CN201810069446.8A priority Critical patent/CN108297443A/en
Publication of CN108297443A publication Critical patent/CN108297443A/en
Pending legal-status Critical Current

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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
    • B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
    • B29C65/1612—Infrared [IR] radiation, e.g. by infrared lasers
    • 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
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
    • B29C65/1606—Ultraviolet [UV] radiation, e.g. by ultraviolet excimer lasers
    • 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
    • B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
    • B29C65/1609—Visible light radiation, e.g. by visible light lasers
    • 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
    • B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
    • B29C65/1612—Infrared [IR] radiation, e.g. by infrared lasers
    • B29C65/1616—Near infrared radiation [NIR], e.g. by YAG lasers
    • 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
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • 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
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
    • 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
    • B29C65/44—Joining a heated non plastics element to a plastics element
    • 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
    • B29C65/82—Testing the joint
    • B29C65/8207—Testing the joint by mechanical methods
    • B29C65/8215—Tensile tests
    • 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
    • B29C65/82—Testing the joint
    • B29C65/8253—Testing the joint by the use of waves or particle radiation, e.g. visual examination, scanning electron microscopy, or X-rays
    • 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
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • 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
    • B29C66/024—Thermal pre-treatments
    • B29C66/0246—Cutting or perforating, e.g. burning away by using a laser or using hot air
    • 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
    • B29C66/05—Particular design of joint configurations
    • B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
    • B29C66/3032—Particular design of joint configurations the joint involving an anchoring effect making use of protusions or cavities belonging to at least one of the parts to be joined
    • B29C66/30321—Particular design of joint configurations the joint involving an anchoring effect making use of protusions or cavities belonging to at least one of the parts to be joined making use of protusions belonging to at least one of the parts to be joined
    • B29C66/30322—Particular design of joint configurations the joint involving an anchoring effect making use of protusions or cavities belonging to at least one of the parts to be joined making use of protusions belonging to at least one of the parts to be joined in the form of rugosity
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • 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
    • B29C66/71—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 composition of the plastics material of the parts to be joined
    • 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
    • B29C66/70—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
    • B29C66/7212—Fibre-reinforced materials characterised by the composition of the fibres
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/735—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the extensive physical properties of the parts to be joined
    • B29C66/7352—Thickness, e.g. very thin
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • 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
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • 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
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B29C66/7422—Aluminium or alloys of aluminium
    • 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
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B29C66/7428—Transition metals or their alloys
    • 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
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B29C66/7428—Transition metals or their alloys
    • B29C66/74283—Iron or alloys of iron, e.g. steel
    • 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
    • B29C66/929—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges
    • 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
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/939—Measuring or controlling the joining process by measuring or controlling the speed characterised by specific speed values or ranges
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives

Abstract

The invention belongs to welding technology fields, disclose a kind of method promoting thermoplastic composite and metal connection intensity, include the following steps：S1, wait for that join domain prepares micro- texture in metal surface using short-pulse laser；S2, it is laid with one layer of thermoplastic resin material on micro- texture surface；S3, thermoplastic composite is connect with metal progress heat transfer using laser.One aspect of the present invention increases the contact area of thermoplastic composite and metal, forms occlusion structure by waiting for that join domain prepares micro- texture in metal surface；On the other hand one layer of thermoplastic resin material is added between thermoplastic composite and metal, thermoplastic resin material is in molten condition when laser welding, thermoplastic composite is set fully to be connect with metal, it is final to promote thermoplastic composite and metal connection intensity.

Description

A method of promoting thermoplastic composite and metal connection intensity
Technical field
The invention belongs to welding technology fields, and in particular to a kind of thermoplastic composite and metal connection intensity of being promoted Method.
Background technology
Thermoplastic composite has high specific strength and specific modulus, and impact resistance, endurance, water resistance and endurance are excellent It is good, processing is repeated, processing and forming is efficient, and processing and forming is at low cost to wait remarkable advantages.Thus, thermoplastic composite is navigating The fields such as its aviation, wind-power electricity generation, communications and transportation have broad application prospects.The application of thermoplastic composite will be inevitable Ground generates the connectivity problem with traditional metal materials such as steel, aluminium alloys.The welding of thermoplastic composite does not use adhesive, only By the resin melting and welding formation connector of composite material surface, with process cycle is short, efficient, connector stress distribution is equal It is even, be easy to implement the advantages that automation.
Currently, thermoplastic composite mainly uses the methods of resistance implantation weldering, electromagnetic induction weldering and ultrasonic bonding complete At welding.Wherein, resistance implantation Welding is simple, equipment is flexible, without surface treatment, but in the welding process, plumb joint Impurity can be introduced, to reduce the fatigue behaviour of plumb joint and the uniformity of electric property；Electromagnetic induction weldering can be connected Still there is high implantation material cost, packing material influence weld strength, be difficult to solder to that there is complicated welding in continuous welding The problems such as structure in face；Ultrasonic bond has many advantages, such as that welding efficiency is high, strength of joint is high, but its there are energy-oriented-ridge make it is difficult With the small limitation of primary solderable area.
Laser welding have it is simple for process, of low cost, heating speed is fast, penetration capacity is strong, heat affected area is small, connector is strong The advantages that degree is high, ingredient is uniform, and disposable large-area welding can be completed, but compared with other methods, it is faced with a key Problem：Bonding strength is low.The reason for causing fiber reinforced thermolplastic composite material low with metal laser bonding strength mainly has two It is a：One be fiber reinforced thermolplastic composite material resin content it is low, cause multiple for melting connection fiber reinforced thermolplastic The amount of resin of condensation material and metal is few, and connection is insufficient；Another is then that metal surface is smooth, keeps fiber reinforced thermolplastic compound Material is small with metal contact area, and can not form occlusion structure.
Therefore, it is necessary to a kind of methods promoting thermoplastic composite and metal connection intensity.
Invention content
The object of the present invention is to provide a kind of promotion fiber reinforced thermolplastic composite materials and metal laser bonding strength Interface processing method.
In order to achieve the above objectives, the present invention uses following technical scheme：
A method of thermoplastic composite and metal connection intensity are promoted, is included the following steps：
S1, wait for that join domain prepares micro- texture in metal surface using short-pulse laser；
S2, it is laid with one layer of thermoplastic resin material on micro- texture surface；
S3, thermoplastic composite is connect with metal progress heat transfer using laser.
Further, the wavelength of the short-pulse laser is 10.6 μm, 1064nm, 532nm or 266nm.
Further, the short-pulse laser is by millisecond laser, nanosecond laser, picosecond laser or femto-second laser It sends out.
Further, the pattern of micro- texture is micro- hole, dimpling, grid or back taper.
Further, micro- texture is to drive laser beam to move using scanning galvanometer or scanning mirror, in workpiece surface Etching is prepared.
Further, the thermoplastic resin material is polyamide, polyethylene, polyphenylene sulfide or poly-methyl methacrylate Ester.
Further, the thickness of the thermoplastic resin material is within 1mm.
Further, the metal is stainless steel, carbon steel, aluminium alloy, magnesium alloy, titanium alloy or high temperature alloy.
Further, the thermoplastic composite is fibre-reinforced thermoplastic resin based composite material.
Further, the thermoplastic composite is the polyamide, poly- of glass fibre, carbon fiber or aramid fiber enhancing Ethylene, polyphenylene sulfide or polymethyl methacrylate.
The invention has the advantages that：
One aspect of the present invention increases thermoplastic composite and metal by waiting for that join domain prepares micro- texture in metal surface Contact area forms occlusion structure；On the other hand one layer of thermoplastic resin material is added between thermoplastic composite and metal Material, thermoplastic resin material is in molten condition when laser welding, so that thermoplastic composite is fully connect with metal, finally carries Rise thermoplastic composite and metal connection intensity.
Description of the drawings
Fig. 1 is that the laser of embodiment 1 connects flow chart；
Fig. 2 is the scanning electron microscope (SEM) photograph of the micro- texture in 1 metal surface of embodiment；
Fig. 3 is the laser scanning co-focusing microscope figure of 1 thermoplastic composite of embodiment and metal contact zone domain.
Specific implementation mode
The present invention method be specially：
1, the preparation that connection metal material surface carries out micro- texture is treated by scanning galvanometer using short-pulse laser, micro- texture Pattern, size etc. can be by adjusting Pulsed Laser Parameters（Power, frequency, pulsewidth）Sweep speed, line spacing with scanning galvanometer To control.
2, after the completion of prepared by micro- texture, one layer of thermoplastic resin is placed on micro- texture surface, thermoplastic resin increases with fiber Heat-flash plastic composites matrix resin component is consistent, and thickness is generally less than 1mm, and metal surface is just completely covered in size Micro- texture.
3, fiber reinforced thermolplastic composite material to be connected is placed on a metal plate, micro- texture and thermoplastic resin layer exist Therebetween, external pressure then is applied to fiber reinforced thermolplastic composite material and metallic plate, the two is made to fit together, pressed The application of power is generally realized by clamping device.
4, using laser heat conduction weld method, fiber reinforced thermolplastic composite material and metal are attached, side Method is that laser focuses on metallic upper surface, and along surface scan, thermoplastic resin layer melts in the micro- texture of embedded metal laser beam, Resin layer is merged with fiber reinforced thermolplastic composite material matrix resin simultaneously, forms welding point.
Embodiment 1
As shown in Figure 1, being welded according to the following steps to thermoplastic composite and metal laser：
1, nanosecond laser is utilized（Wavelength 532nm, pulsewidth 20ns, power 30W, frequency 5KHz）And scanning galvanometer（Sweep speed 5m/s）To aluminium alloy（7075）Surface carries out micro- texture processing, and micro- texture is fenestral fabric, and scan line spacing is d=0.1mm； The scanning electron microscope (SEM) photograph of micro- texture obtained as shown in Fig. 2, the word in figure in addition to indicating the necessary informations such as amplification factor, length Outside, without other meanings；It can be seen that aluminum alloy surface forms regular dimple and protrusion, when increasing connection aluminium alloy with The contact area of thermoplastic composite improves bonding strength；
2, the polyamide of 25 μm of thickness is laid in micro- texture, micro- matter of aluminum alloy surface is just completely covered in size Structure；
3, by the polyamide compoiste material of fibre reinforced（CFRTP）It is placed on aluminium alloy, micro- texture and polyamide resin layer In between, combination workpiece is clamped together by Pneumatic fixture, and applies the pressure of 0.5MPa, make polyamide composite wood Material fits together with aluminium alloy；
4, the infrared laser of 1064nm is utilized（Power 200W）Aluminum alloy surface is focused on, and is scanned in aluminum alloy surface（Speed 10mm/s）, aluminium alloy is heated, and the matrix of molten polyamide resin layer and polyamide compoiste material, completes aluminium alloy With the connection of polyamide compoiste material；The laser scanning co-focusing microscope figure of join domain is as shown in Figure 3；Increase micro- texture it Afterwards, interface polyamide（Thermoplastic composite）Form and be engaged and embedded structure with aluminium alloy, can lifting sub connect Connect intensity.
It is tested by tensile strength, it is 32MPa to have micro- texture, add the bonding strength of polyamide resin layer rear joint, and It is 20.6MPa not have micro- texture, the connector bonding strength without polyamide resin layer, and the bonding strength of the present embodiment improves closely 55%, significant effect.
Embodiment 2
Thermoplastic composite and metal laser are welded according to the following steps：
1, picosecond laser is utilized（Wavelength 1064nm, pulsewidth 40ps, power 20W, frequency 30MHz）And scanning galvanometer（Scanning speed Spend 8m/s）Micro- texture processing is carried out to stainless steel surface, micro- texture is back taper structure；
2, the plexiglass of 100 μm of thickness is laid in micro- texture, stainless steel is just completely covered in size Micro- texture on surface；
3, the polymethyl methacrylate of glass fiber reinforcement is placed on stainless steel, micro- texture and polymethyl methacrylate Resin layer between, by Pneumatic fixture is clamped together combination workpiece, and applies the pressure of 0.5MPa, makes poly- methyl Methyl acrylate composite material fits together with stainless steel；
4, the green laser of 532nm is utilized（Power 100W）Stainless steel surface is focused on, and in stainless steel watch Surface scan（Speed 8mm/s）, stainless steel is heated, and melt polymethyl methacrylate, it is multiple with polymethyl methacrylate to complete stainless steel The connection of condensation material.
It is tested by tensile strength, the bonding strength for having micro- texture, adding plexiglass layer rear joint For 30MPa, without micro- texture, the connector bonding strength without plexiglass layer be 21MPa, the present embodiment Tensile strength improves nearly 43%, significant effect.
Embodiment 3
Thermoplastic composite and metal laser are welded according to the following steps：
1, femto-second laser is utilized（Pulsewidth 200fs, power 5W, frequency 100MHz）And scanning galvanometer（Sweep speed 10m/s）It is right Titanium alloy surface carries out micro- texture processing, and micro- texture is micro-convex structure；
2, the polyphenylene sulfide of 50 μm of thickness is laid in micro- texture, micro- matter of titanium alloy surface is just completely covered in size Structure；
3, the polyphenylene sulfide that aramid fiber enhances is placed on titanium alloy, micro- texture and polyphenylene sulfide resin lipid layer the two it Between, combination workpiece is clamped together by Pneumatic fixture, and apply the pressure of 0.4MPa, makes polyphenyl thioether composite material and titanium Alloy fits together；
4, the ultraviolet laser of 266nm is utilized（Power 40W）Titanium alloy surface is focused on, and is scanned in titanium alloy surface（Speed 12mm/s）, titanium alloy is heated, and melt polyphenylene sulfide, completes the connection of titanium alloy and polyphenyl thioether composite material.
It is tested by tensile strength, it is 35MPa to have micro- texture, add the bonding strength of polyphenylene sulfide resin lipid layer rear joint, Without micro- texture, the connector bonding strength without polyphenylene sulfide resin lipid layer be 22MPa, the tensile strength of the present embodiment improves closely 59%, significant effect.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Belong to those skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in all are answered It is included within the scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.

Claims (10)

1. a kind of method promoting thermoplastic composite and metal connection intensity, which is characterized in that include the following steps：
S1, wait for that join domain prepares micro- texture in metal surface using short-pulse laser；
S2, it is laid with one layer of thermoplastic resin material on micro- texture surface；
S3, thermoplastic composite is connect with metal progress heat transfer using laser.
2. according to the method described in claim 1, it is characterized in that, the wavelength of the short-pulse laser be 10.6 μm, 1064nm, 532nm or 266nm.
3. according to the method described in claim 1, it is characterized in that, the short-pulse laser is by millisecond laser, nanosecond laser Device, picosecond laser or femto-second laser are sent out.
4. according to the method described in claim 1, it is characterized in that, the pattern of micro- texture is micro- hole, dimpling, grid or falls Cone.
5. according to the method described in claim 1, it is characterized in that, micro- texture is to utilize scanning galvanometer or scanning mirror band Dynamic laser beam movement is prepared in workpiece surface etching.
6. according to the method described in claim 1, it is characterized in that, the thermoplastic resin material is polyamide, polyethylene, gathers Diphenyl sulfide or polymethyl methacrylate.
7. according to the method described in claim 1, it is characterized in that, the thickness of the thermoplastic resin material is within 1mm.
8. according to the method described in claim 1, it is characterized in that, the metal be stainless steel, carbon steel, aluminium alloy, magnesium alloy, Titanium alloy or high temperature alloy.
9. according to the method described in claim 1, it is characterized in that, the thermoplastic composite is fibre-reinforced thermoplasticity Polymer matrix composites.
10. according to the method described in claim 9, it is characterized in that, the thermoplastic composite is glass fibre, carbon fiber Or polyamide, polyethylene, polyphenylene sulfide or the polymethyl methacrylate of aramid fiber enhancing.
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CN109483054A (en) * 2018-12-20 2019-03-19 北京大学深圳研究院 A kind of docking laser soldering method of CFRTP and metal material
CN110789131A (en) * 2019-11-13 2020-02-14 南京航空航天大学 Controllable progressive loading clamping equipment and method for laser connection of thermoplastic composite material and light alloy
CN110948886A (en) * 2019-09-11 2020-04-03 南京航空航天大学 Laser welding process for thermoplastic composite material and light alloy of pre-buried metal sheet
CN110948885A (en) * 2019-09-11 2020-04-03 南京航空航天大学 Laser swing welding method for lap joint structure of thermoplastic composite material and aluminum alloy
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CN109483054A (en) * 2018-12-20 2019-03-19 北京大学深圳研究院 A kind of docking laser soldering method of CFRTP and metal material
CN112060598A (en) * 2019-06-10 2020-12-11 上海中科神光光电产业有限公司 Method for welding metal workpiece and thermosetting resin-based composite material workpiece
CN110948886A (en) * 2019-09-11 2020-04-03 南京航空航天大学 Laser welding process for thermoplastic composite material and light alloy of pre-buried metal sheet
CN110948885A (en) * 2019-09-11 2020-04-03 南京航空航天大学 Laser swing welding method for lap joint structure of thermoplastic composite material and aluminum alloy
CN110948885B (en) * 2019-09-11 2021-09-24 南京航空航天大学 Laser swing welding method for lap joint structure of thermoplastic composite material and aluminum alloy
CN110789131A (en) * 2019-11-13 2020-02-14 南京航空航天大学 Controllable progressive loading clamping equipment and method for laser connection of thermoplastic composite material and light alloy
CN110789131B (en) * 2019-11-13 2021-09-24 南京航空航天大学 Controllable progressive loading clamping equipment and method for laser connection of thermoplastic composite material and light alloy
CN112895474A (en) * 2019-12-03 2021-06-04 中国商用飞机有限责任公司 Method for connecting fiber reinforced thermoplastic composite material and metal
CN111168240A (en) * 2020-02-12 2020-05-19 吉林大学 Laser welding method for aluminum alloy and plastic, grinding clamp and clamping clamp
CN111716732A (en) * 2020-06-29 2020-09-29 吉林大学 Metal and nonmetal material laser impact glue riveting connection device and method
CN111958979A (en) * 2020-07-06 2020-11-20 华南理工大学 Friction lap welding method for metal and thermoplastic resin material
CN111844815A (en) * 2020-07-15 2020-10-30 哈尔滨工业大学 Connecting method of steel material and carbon fiber woven piece
CN111844815B (en) * 2020-07-15 2021-11-02 哈尔滨工业大学 Connecting method of steel material and carbon fiber woven piece
EP3974095A4 (en) * 2020-08-07 2023-03-29 Mutsuki Electric Co., Ltd. Metal resin joined body and method for manufacturing metal resin joined body
CN112571807A (en) * 2020-11-30 2021-03-30 沈阳航空航天大学 Hot riveting connection method of thermoplastic material and light alloy
CN113414496A (en) * 2021-05-28 2021-09-21 北京工业大学 Method for enhancing connection strength of composite material and metal through ultrafast laser treatment
CN113305437A (en) * 2021-06-04 2021-08-27 扬州大学 Thermoplastic composite material-metal laser welding method
WO2023134124A1 (en) * 2022-01-17 2023-07-20 哈焊国创(青岛)焊接工程创新中心有限公司 Light alloy and fiber-reinforced composite material heterogeneous joint and preparation method therefor
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