WO2013166499A2 - Procédé de durcissement et adhésif entre au moins deux panneaux - Google Patents

Procédé de durcissement et adhésif entre au moins deux panneaux Download PDF

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Publication number
WO2013166499A2
WO2013166499A2 PCT/US2013/039734 US2013039734W WO2013166499A2 WO 2013166499 A2 WO2013166499 A2 WO 2013166499A2 US 2013039734 W US2013039734 W US 2013039734W WO 2013166499 A2 WO2013166499 A2 WO 2013166499A2
Authority
WO
WIPO (PCT)
Prior art keywords
substrate
laser
adhesive
curing
adhesive layer
Prior art date
Application number
PCT/US2013/039734
Other languages
English (en)
Other versions
WO2013166499A3 (fr
Inventor
Jeremy Alan Panasiewicz
David Scott DYKE
Matthew Roy PLAUMAN
Original Assignee
Magna International Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Magna International Inc. filed Critical Magna International Inc.
Priority to PCT/US2013/039734 priority Critical patent/WO2013166499A2/fr
Publication of WO2013166499A2 publication Critical patent/WO2013166499A2/fr
Publication of WO2013166499A3 publication Critical patent/WO2013166499A3/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
    • C09J5/06—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving heating of the applied adhesive
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0838—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using laser
    • 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
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/009—Using laser
    • 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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/16—Surface shaping of articles, e.g. embossing; Apparatus therefor by wave energy or particle radiation, e.g. infrared heating
    • 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
    • B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
    • 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
    • B29C65/1664—Laser beams characterised by the way of heating the interface making use of several radiators
    • 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
    • B29C65/1677—Laser beams making use of an absorber or impact modifier
    • B29C65/168—Laser beams making use of an absorber or impact modifier placed at 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
    • B29C65/1687—Laser beams making use of light guides
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/482—Drying adhesives, e.g. solvent based adhesives
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • B29C65/4835—Heat curing adhesives
    • 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
    • B29C65/76—Making non-permanent or releasable 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
    • 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
    • B29C66/01—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
    • 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
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • 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 protrusions 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 protrusions or cavities belonging to at least one of the parts to be joined making use of protrusions 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 protrusions or cavities belonging to at least one of the parts to be joined making use of protrusions 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
    • 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
    • B29C66/72—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
    • B29C66/73—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
    • B29C66/73—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
    • B29C66/7394—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 thermoset
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • 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
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3002—Superstructures characterized by combining metal and plastics, i.e. hybrid parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3055—Cars

Definitions

  • the present invention relates to a method for curing an adhesive bond using laser energy.
  • Adhesive bonding of materials has long been an important consideration in design and manufacturing of products for sale in the market place.
  • Adhesives typically require curing by a mechanism such as: heat curing; chemical; moisture and/or UV curing.
  • Heat curable adhesives require that external heat be applied through the substrate by various methods of heat. Typically ovens, heating elements, flames or heat lamps may be used. These methods require that external heat be applied through the substrate by these various methods of heat. Because heating is not instantaneous the parts to be adhered to one another must be held in the final bonded position for long lengths of time. Thus, complex and expensive fixtures or work piece holders are often required to maintain proper dimensions. Heated bonder machines are often used but are expensive and often job specific. Some systems use infrared lights to heat such bonds, while others use microwave curing to impart heat but requires constant monitoring for leaks and has high energy costs. Induction heat curing is also possible but metal particles in the bond may cause excessive wear on the adhesive bonding equipment.
  • Moisture cure systems typically are cured by initiating a polymerization reaction with water. Humidity in the air or application of water to the adhesive directly can be used for reaction initiation. The reaction is very slow typically and therefore expensive fixtures are also needed with this method. At times parts to be cured can be held in position with mechanical fasteners. However, this is not desirable and may be impractical depending on the types of fasteners necessary. Fasteners disrupt the surfaces of the substrates to be bonded and also may compromise the strength of the materials due to the necessary holes through the materials and stresses placed on the materials at the fastening location.
  • Ultraviolet light curing of adhesives uses ultraviolet light of a particular frequency to initiate the polymerization reaction. This type of curing requires that the adhesive be exposed to light. Thus, either the adhesive must be exposed to the ambient environment or if hidden beneath a part or panel the part or panel must be UV transparent at least where the UV curable adhesive is applied.
  • a process for curing of an adhesive using laser energy In a first step a substrate sandwich assembly comprising at least one substrate is provided. A second substrate is bonded to the first substrate with an adhesive interposed between the substrates.
  • the adhesive used at least partially requires heat to assist in curing of the adhesive.
  • the laser used is defocused, meaning the laser is focused to a point (e.g. focal point) behind the substrates to be bonded.
  • the surface of the substrates to be bonded is contacted with a laser at the location of the adhesive with the out of focus laser energy beam for imparting heat into the bonding area.
  • the laser energy used is an effective amount of laser energy sufficient to assist in bond curing of the adhesive at that area.
  • Figure 1 is a schematic view showing the process in accordance with the present invention.
  • Figure 2 is a schematic view showing and alternate embodiment of the process of the present invention.
  • Figure 3A is a schematic view showing an alternate embodiment of the present invention having a pretreatment laser etching process
  • Figure 3B is an alternate embodiment of the process of the present invention incorporating the pretreatment laser etching process of Fig. 3A;
  • Figure 4 is a schematic view showing an alternate embodiment of the process of the present invention.
  • a process for curing of an adhesive using laser energy generally indicated at 10.
  • a substrate sandwich assembly generally indicated at 12 is provided.
  • the assembly 12 includes at least one substrate 14 (also referred to as a first panel) such as a panel or part of the vehicle, an adhesive 16 and a second substrate 18 (also referred to as a second panel).
  • substrate 14 also referred to as a first panel
  • second substrate 18 also referred to as a second panel
  • panel (14, 18) materials to be adhered are typically automotive parts and assemblies.
  • panels to be bonded are made out of polymer, sheet metal, aluminum, sheet molding compound, composites, thermoset polymers, thermoformable polymers and sometimes combinations of these materials. While the process is particularly useful in modern thermoplastic and composite vehicle parts it is to be readily appreciated that the process can be useful in any heat cured adhesive situation.
  • a Laser 20 is used for curing of the adhesive 14.
  • Lasers 20 used in the present invention are typically in the 1 KW to 100KW range.
  • the process is used for treating the surface of the substrate to provide a surface energy of from about 40 to about 80 Dynes and preferably from about 60 to 80 Dynes.
  • a single laser may be used. If a higher energy laser is used the beam is split to apply laser energy to more than one bond area.
  • the laser is focused at a point 22 beyond both of the substrates and then is passed over the substrate to create heat at the substrate. This creates an area of heat 24 at the adhesive area for curing of the adhesive.
  • the second substrate18 is bonded to the fist substrate 14 with an adhesive 16 interposed between the substrates (14, 18).
  • the adhesive used at least partially requires heat to assist in curing of the adhesive.
  • Heat cure adhesives are known to those skilled in the art. Heat curing may also be used in volatile organic compounds (VOC) containing adhesives to assist in drying of the adhesives.
  • VOC volatile organic compounds
  • the area where the adhesive is found in the sandwich is heated with a laser. In order to create a wider area of energy input on the adhesive layer, the laser is focused to the point 22 beyond the sandwich 12 construction. This creates a defocused area 24 of the laser beam that inputs energy in the area of adhesive layer 16 in contact with substrate 14, 18.
  • the energy in the defocused area 24 imports heat to create a bond area using an affective amount of laser energy sufficient to assist in bond curing of the adhesive with the substrates 14, 8.
  • a multiple layer sandwich is provided which includes a second adhesive 126 for connecting to a third substrate 128.
  • the laser is defocused to a point 122 beyond either panel.
  • the defocused area 124 concentrates heat in the points of both adhesive bonds.
  • the laser is used in spot locations to keep the panels together by turning the defocused laser on along a bond line for providing predetermined points of bonding. This allows secure positioning of the substrates 14, 18, 1 14, 1 18, 128 to be held in position while the bond is further being cured.
  • FIGS 3A and 3B show another alternate embodiment of the invention wherein like reference numerals differing by 200 indicate like elements.
  • a pretreatment process 200 is shown wherein substrates 214, 2 8 are pretreated or etched with a laser 220.
  • the laser 220 is focused to a point 222 in order to create an etching 223 on the surface of the substrates 214, 218.
  • the etching 223 creates a rough surface on the substrates 214, 218 to allow an adhesive layer to more efficiently bond to the surface.
  • the laser 220 is focused to a point 222 in order to provide enough energy to etch the surface of the substrates 214, 218.
  • Figure 3B shows the process where the laser 220 is focused to a point 225 beyond the substrates 214, 218 with an adhesive layer 216 placed between the substrates 214, 218.
  • the adhesive layer extends over the etched surface 223 of the substrate 214, 218.
  • the laser beam is defocused to a point 225 beyond and thereby creates a defocused area 224 in order to input energy in the region between the substrates 214, 218, etched surface 223 and adhesive layer 216.
  • FIG 4 an alternate embodiment of the present invention is shown wherein the single laser beam is split to create a bond at a different location using the same laser beam.
  • like reference numerals to Figure 1 are shown differing by 300.
  • a process for curing two bonds using laser energy is generally shown at 300.
  • the process has a first substrate 314, second substrate 318 with two different adhesive layers 316, 316' positioned between the first substrate 314 and second substrate 318.
  • the location of the adhesive layers 316, 316' are locations where two different bonds between the substrates 314, 318 will be created.
  • the adhesive layers 316, 316' are located or used in connecting multiple substrates, thus while Figure 4 shows two adhesive layers 316, 316' between a first substrate 314 and second substrate 318, it is within the scope of this invention for the adhesive layers to be located between any number of substrates and the present invention is not just limited to creating two separate bonds between the same two substrates.
  • the process 300 uses a laser 320 for creating a laser beam 317 focused to a point 322 located beyond the first substrate 314, adhesive later 316 second substrate 318.
  • the beam 317 creates a first defocused area 324 where energy in the form of heat is applied between the adhesive layer 316 and the first substrate 314 and second substrate 318 in a manner similar to Figure 1.
  • a mirror 321 or other suitable light refractive object such as a light tunnel, prism or other suitable device or arrangement is positioned within a portion of the path of the first beam 3 7 at a location near the laser beam 320 in order to redirect a portion of the beam 317.
  • the portion of the beam 317 that is refocused by the mirror 321 creates a second beam 319 that is focused to a point 322' beyond the first substrate 314, second adhesive layer 316' and second substrate 318.
  • the second beam 319 being focused at a point 322' creates a second defocused area 324' for inputting energy in the form of heat at a second location in order to form a bond between the first substrate 314, adhesive layer 316' and second substrate 318.
  • the process 300 shown in Figure 4 demonstrates how a single beam 317 can be split in order to create two different bonds using a single laser 320.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

La présente invention porte sur un processus de durcissement d'adhésif utilisant une énergie laser. Un ensemble sandwich de substrats comporte un adhésif interposé entre les substrats. L'adhésif utilisé requiert au moins partiellement de la chaleur pour aider au durcissement de l'adhésif. La zone où l'adhésif est trouvé dans le sandwich est chauffée avec un laser. Le laser utilisé est défocalisé, par exemple, le laser est focalisé vers un point derrière les substrats à lier. Par suite, le laser défocalisé est utilisé pour venir en contact avec la surface des substrats à lier au niveau de la position dudit adhésif avec le faisceau d'énergie laser hors de foyer pour faire impacter de la chaleur sur la zone de liaison ayant une quantité efficace d'énergie laser suffisante pour aider au durcissement de liaison de l'adhésif au niveau de cette zone.
PCT/US2013/039734 2012-05-04 2013-05-06 Procédé de durcissement et adhésif entre au moins deux panneaux WO2013166499A2 (fr)

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PCT/US2013/039734 WO2013166499A2 (fr) 2012-05-04 2013-05-06 Procédé de durcissement et adhésif entre au moins deux panneaux

Applications Claiming Priority (2)

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US61/642,284 2012-05-03
PCT/US2013/039734 WO2013166499A2 (fr) 2012-05-04 2013-05-06 Procédé de durcissement et adhésif entre au moins deux panneaux

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CN108746996A (zh) * 2018-08-10 2018-11-06 深圳市联华材料技术有限公司 一种基于激光射线的材料粘合方法和装置
CN113817415A (zh) * 2021-09-27 2021-12-21 深圳市德龙智能高科技有限公司 材料粘合方法和装置
US20220009216A1 (en) * 2019-03-29 2022-01-13 Ihi Corporation Metal-resin joining method
FR3140566A1 (fr) * 2022-10-10 2024-04-12 Psa Automobiles Sa Procède d’assemblage de deux pièces dont une des pièces est métallique.

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JP3827070B2 (ja) * 2001-11-02 2006-09-27 本田技研工業株式会社 樹脂部材のレーザ多層接合方法
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JP6192887B2 (ja) * 2010-08-02 2017-09-06 早川ゴム株式会社 レーザー光を用いた接合方法

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108746996A (zh) * 2018-08-10 2018-11-06 深圳市联华材料技术有限公司 一种基于激光射线的材料粘合方法和装置
US20220009216A1 (en) * 2019-03-29 2022-01-13 Ihi Corporation Metal-resin joining method
US11987034B2 (en) * 2019-03-29 2024-05-21 Ihi Corporation Metal-resin joining method
CN113817415A (zh) * 2021-09-27 2021-12-21 深圳市德龙智能高科技有限公司 材料粘合方法和装置
FR3140566A1 (fr) * 2022-10-10 2024-04-12 Psa Automobiles Sa Procède d’assemblage de deux pièces dont une des pièces est métallique.

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