WO2016133079A1 - Procédé de production d'une structure assemblée, et structure assemblée - Google Patents

Procédé de production d'une structure assemblée, et structure assemblée Download PDF

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Publication number
WO2016133079A1
WO2016133079A1 PCT/JP2016/054420 JP2016054420W WO2016133079A1 WO 2016133079 A1 WO2016133079 A1 WO 2016133079A1 JP 2016054420 W JP2016054420 W JP 2016054420W WO 2016133079 A1 WO2016133079 A1 WO 2016133079A1
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WO
WIPO (PCT)
Prior art keywords
perforated
manufacturing
stress concentration
laser
joined
Prior art date
Application number
PCT/JP2016/054420
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English (en)
Japanese (ja)
Inventor
和義 西川
Original Assignee
オムロン株式会社
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Publication date
Application filed by オムロン株式会社 filed Critical オムロン株式会社
Publication of WO2016133079A1 publication Critical patent/WO2016133079A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/02—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding
    • 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
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/062—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam
    • B23K26/0622—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/38—Removing material by boring or cutting
    • B23K26/382—Removing material by boring or cutting by boring
    • B23K26/389—Removing material by boring or cutting by boring of fluid openings, e.g. nozzles, jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/60—Preliminary treatment
    • 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
    • B29C66/10—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
    • 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
    • B29C66/114—Single butt 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
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2424—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain
    • B29C66/24243—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral
    • B29C66/24244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral forming a rectangle
    • 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
    • B29C66/30325—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 cavities belonging to 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53461—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
    • 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
    • B29C66/72—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
    • B29C66/739—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
    • 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
    • B29C66/74281—Copper or alloys of copper
    • 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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3481—Housings or casings incorporating or embedding electric or electronic elements

Definitions

  • the present invention relates to a method for manufacturing a bonded structure and a bonded structure.
  • a recess having an average diameter of 0.01 to 50 ⁇ m or a groove having an average width of 0.01 to 50 ⁇ m is formed on a joint surface of a metal molded body with a resin molded body.
  • the average diameter of the openings is 1.0 to 1000 ⁇ m and the maximum depth is 10 to 1000 ⁇ m or the average width is 1.0 to 1000 ⁇ m and the maximum with respect to the joint surface where the recess or groove is formed
  • a method for producing a composite molded body having a second step of forming a groove having a depth of 10 to 1000 ⁇ m and a third step of obtaining a composite molded body by insert molding. According to the thing of this patent document 1, it is supposed that joint strength can be raised.
  • the concave portion is formed on the joint surface of one member with the other member because the other member (for example, resin) melted when the two members are joined is filled in the concave portion. Often this is to obtain a so-called anchor effect.
  • the joint creepage surface is extended (the joint area is increased), the processing depth of the concave portion is increased over the entire joint surface, the concave portion, etc. It is possible to increase the number of However, extending the joint creepage imposes restrictions on product design, and if the processing depth of the recesses is increased or the number of recesses is increased over the entire connection surface, The problem arises that time is increased and productivity is lowered.
  • the present invention has been made in view of such points, and the object of the present invention is to provide a bonding surface in a method for manufacturing a bonded structure and a bonded structure, while ensuring design freedom and suppressing a decrease in productivity. It is to provide a technique for suppressing stress fracture at the time.
  • the contact area between the perforated part and the filling resin at a place where stress fracture is likely to occur is The contact area with the resin is made larger.
  • the present invention is a method for manufacturing a joined structure in which a first member and a second member made of resin are joined, and the first member constituting a joint surface with the second member
  • the surface area of the perforated part per unit volume of the surface part corresponding to the stress concentration part in the surface part is larger than the surface area of the perforated part per unit volume of the other part of the surface part.
  • the “location corresponding to the stress concentration portion in the surface portion” refers to a location that becomes a stress concentration portion on the bonding surface (bonding portion) of the manufactured bonded structure. It means a corresponding location on the surface of the first member.
  • the stress concentration portion of the bonded structure can be specified by CAE (Computer Aided Engineering) analysis, a destructive test, or the like in the pre-production stage.
  • the surface area of the perforated part per unit volume is greater at the stress concentration locations than at other locations. Since it becomes large, the contact area of the hole wall of a perforation part and the 2nd member (resin member) with which the perforation part was filled becomes large. As described above, since the contact area between the hole wall of the perforated part and the filling resin is increased, the force acting on the hole wall (or the surface of the filled resin) of the perforated part is dispersed and the stress is reduced. Stress fracture at the part can be suppressed.
  • the surface area of the perforated portion per unit volume at the stress concentration location is increased instead of extending the joint creepage surface, the degree of freedom in design can be ensured.
  • the surface area of the perforated part is not increased uniformly over the entire joining surface, but the surface area of the perforated part is increased according to the degree to which the joining strength is required, so that a reduction in productivity can be suppressed. .
  • the processing depth of the drilling portion at a location corresponding to the stress concentration portion is deeper than the processing depth of the drilling portion at the other location. It is preferable to form a plurality of perforations.
  • the laser output is increased, or the number of scans is increased.
  • the surface area of the perforated portion at the stress concentration location can be easily made larger than the surface area of the perforated portion at other locations.
  • the perforated part in the other part is the stress concentration part. It is preferable to form such that the closer to the part corresponding to the part, the deeper the processing depth.
  • the stress distribution is disturbed in areas other than the stress concentration part due to the difference in the linear expansion coefficient between the two members. Since the processing depth is formed deeper as the portion is, stress fracture other than the stress concentration portion can be efficiently suppressed.
  • the number of perforated parts per unit area at a location corresponding to the stress concentration portion is larger than the number of perforated parts per unit area at the other locations.
  • the plurality of perforations are formed.
  • the laser irradiation interval at the stress concentration location is shorter than the laser irradiation interval at other locations.
  • the surface area of the perforated portion at the stress concentration location can be easily made larger than the surface area of the perforated portion at other locations.
  • the perforation portion at the other locations is used as the stress concentration portion. It is preferable to form so as to increase the number per unit area closer to the corresponding portion.
  • one pulse is irradiated with a laser composed of a plurality of sub-pulses, thereby forming projecting portions projecting inwardly on the hole walls of the respective drilled portions.
  • a laser composed of a plurality of sub-pulses
  • the irradiated laser is composed of a plurality of sub-pulses, the melted first member is difficult to be scattered and deposited inside the perforated part.
  • the protrusion part which protrudes in can be formed. As a result, even when a force that peels the second member from the first member is applied, the protruding portion is pulled out and resists against a portion of the second member filled in the perforated portion on the back side of the protruding portion. Therefore, the bonding strength in the peeling direction can be improved.
  • the first member is preferably made of a metal, a thermoplastic resin, or a thermosetting resin.
  • the second member is preferably made of a thermoplastic resin or a thermosetting resin.
  • the plurality of perforated portions are filled with the second member by laser irradiation, injection molding, or hot pressing.
  • the present invention is also directed to a joined structure in which the first member and the second member are joined.
  • the present invention is a bonded structure in which a first member and a second member made of resin are bonded, and the surface portion of the first member that forms a bonding surface with the second member
  • the laser is irradiated so that the surface area of the perforated part per unit volume of the stress concentration part in the surface part is larger than the surface area of the perforated part per unit volume of the other part in the surface part.
  • a plurality of perforations are formed by the above-mentioned, and the plurality of perforations are filled with the second member.
  • the hole wall of the perforated portion and the second member (resin member) is larger in the stress concentration portion than in other portions, the hole wall (or filling) of the perforated portion is larger. Since the force acting on the resin surface) is dispersed and the stress is reduced, the stress breakdown at the stress concentration portion can be suppressed.
  • the design freedom can be ensured and the perforated part according to the required degree of joint strength. Since the surface area is increased, a decrease in productivity can be suppressed.
  • FIG. 4 (a) is a perspective view of a metal case and a resin cover
  • FIG. 4 (b) is an enlarged cross-sectional view taken along the line bb in FIG.
  • FIG. 5 is an enlarged cross-sectional view taken along the line bb in FIG.
  • FIG. 5 is a perspective view which shows typically the 1st member in the joining structure body of an Example.
  • FIG. 5 is a top view which shows typically the 1st member used for the joining structure which concerns on Embodiment 2 of this invention.
  • FIG. 1 is an enlarged cross-sectional view schematically showing a joint portion in the joint structure 1 according to the present embodiment.
  • reference numeral 1A indicates a stress concentration portion
  • reference numeral 1B indicates a portion other than the stress concentration portion (hereinafter also referred to as a normal portion).
  • the bonded structure 1 is formed by bonding a first member 2 and a second member 3 made of resin.
  • the first perforated part 4 and the second perforated opening on the surface of the first member 2 are formed on the surface of the first member 2 constituting the joint interface between the first member 2 and the second member 3 in the joint structure 1.
  • Part 5 is formed.
  • the first perforated part 4 and the second perforated part 5 are formed such that the processing depth of the first perforated part 4 in the stress concentration part 1A is deeper than the processing depth of the second perforated part 5 in the normal part 1B. ing.
  • the second member 3 filled in the first perforated part 4 and the second perforated part 5 in the melted or softened state is formed in the first perforated part 4 and the second perforated part.
  • the first member 2 and the second member 3 are joined by being solidified in the part 5.
  • FIG. 1 only two of the first perforation part 4 and the second perforation part 5 are shown for easy understanding of the drawing. However, in actuality, the first perforation part 4 and the second perforation part 5 are more Many are formed.
  • the first member 2 is preferably made of a metal, a thermoplastic resin, or a thermosetting resin.
  • the second member 3 is preferably made of a thermoplastic resin or a thermosetting resin.
  • the metal constituting the first member 2 examples include iron metal, stainless steel metal, copper metal, aluminum metal, magnesium metal and alloys thereof. Further, the first member 2 may be a metal molded body, or may be zinc die casting, aluminum die casting, powder metallurgy, or the like.
  • thermoplastic resin constituting the first member 2 or the second member 3 examples include PVC (polyvinyl chloride), PS (polystyrene), AS (acrylonitrile styrene), ABS (acrylonitrile butadiene styrene), PMMA (polymethyl methacrylate), PE (polyethylene), PP (polypropylene), PC (polycarbonate), m-PPE (modified polyphenylene ether), PA6 (polyamide 6), PA66 (polyamide 66), POM (polyacetal), PET ( Polyethylene terephthalate), PBT (polybutylene terephthalate), PSF (polysulfone), PAR (polyarylate), PEI (polyetherimide), PPS (polyphenylene sulfide), PES (polyethersulfone), PE K (polyetheretherketone), PAI (polyamideimide), LCP (liquid crystal polymer), PVDC (polyvinylidene chloride
  • the first member 2 or the second member 3 may be TPE (thermoplastic elastomer), and examples of TPE include TPO (olefin-based), TPS (styrene-based), TPEE (ester-based), and TPU. (Urethane type), TPA (nylon type) and TPVC (vinyl chloride type).
  • thermosetting resin constituting the first member 2 or the second member 3 EP (epoxy), PUR (polyurethane), UF (urea formaldehyde), MF (melamine formaldehyde), PF (phenol formaldehyde) , UP (unsaturated polyester) and SI (silicone).
  • EP epoxy
  • PUR polyurethane
  • UF urea formaldehyde
  • MF melamine formaldehyde
  • PF phenol formaldehyde
  • UP unsaturated polyester
  • SI silicone
  • the first member 2 or the second member 3 may be FRP (fiber reinforced plastic).
  • a filler may be added to the thermoplastic resin and the thermosetting resin constituting the first member 2 or the second member 3.
  • the filler include inorganic fillers (glass fibers, inorganic salts, etc.), metal fillers, organic fillers, and carbon fibers.
  • the processing depth of the first perforated portion 4 at the location corresponding to the stress concentration portion 1A on the surface portion of the first member 2 is the processing depth of the second perforated portion 5 at the location corresponding to the normal portion 1B.
  • the first perforated part 4 and the second perforated part 5 are formed by irradiating a processing laser beam (hereinafter simply referred to as a laser) so as to be deeper than the above.
  • a processing laser beam hereinafter simply referred to as a laser
  • the second perforated part 5 is formed on the surface part of the first member 2 when the second member 3 that is melted or softened when the first member 2 and the second member 3 are joined. This is to obtain a so-called anchor effect caused by filling the second perforated part 5.
  • the joining creepage surface is extended (the joining area is increased), or the processing depth of the second punched portion 5 is increased over the entire joining surface. It is possible to do.
  • extending the joint creepage imposes restrictions on product design, and if the machining depth of the second perforated part 5 is increased over the entire joining surface, the machining time becomes longer and the productivity decreases. Problem arises.
  • the surface area of the first perforated part 4 per unit volume of the stress concentration part 1A in the surface part of the first member 2 is the second perforation per unit volume of the normal part (other part) 1B.
  • the first perforated part 4 and the second perforated part 5 are formed by irradiating the surface of the first member 2 with a laser so as to be larger than the surface area of the part 5.
  • various aspects are available as "the surface area of the first perforated part 4 per unit volume of the stress concentration part 1A is larger than the surface area of the second perforated part 5 per unit volume of the normal part 1B".
  • the first perforation unit 4 and the second perforation unit 5 are formed so that the processing depth of the first perforation unit 4 is deeper than the processing depth of the second perforation unit 5.
  • the surface area of the first perforated portion 4 in the stress concentration portion 1A is reduced to the normal portion 1B.
  • the surface area of the second perforated part 5 can be easily increased. Therefore, since the contact area between the hole wall 8 of the first perforated part 4 and the filled second member 3 becomes large, the hole wall 8 of the first perforated part 4 (or the surface of the filled second member 3). ) Is dispersed and the stress is reduced, so that the stress fracture at the stress concentration portion 1A can be suppressed.
  • the first perforated part 4 and the second perforated part 5 are formed, for example, by being irradiated with a processing laser.
  • a processing laser a laser capable of pulse oscillation is preferable, and a fiber laser, a YAG laser, a YVO 4 laser, a semiconductor laser, a carbon dioxide gas laser, and an excimer laser can be selected.
  • a fiber laser, a YAG laser, A second harmonic of a YAG laser, a YVO 4 laser, or a semiconductor laser is preferable.
  • the stress concentration portion 1A differs depending on the shape of the joining structure 1 as a product, the difference in linear expansion coefficient between the first member 2 and the second member 3 used, etc., prior to the manufacture of the joining structure 1,
  • the generation position is specified beforehand.
  • the stress concentration portion 1A may be specified from the distribution of linear expansion stress generated in the joint portion by stress simulation using CAE (Computer Aided Engineering).
  • CAE Computer Aided Engineering
  • a bonded structure in which a drilled portion (for example, the second drilled portion 5) having a relatively shallow processing depth is prepared over the entire bonded surface is prepared, and the bonded structure is subjected to, for example, an environment of ⁇ 40 ° C.
  • a portion where peeling or breakage in the joint portion is generated may be specified as the stress concentration portion 1A by applying 100 times of repeated thermal shock for 30 minutes in an environment of 85 ° C. for 30 minutes.
  • Both the first perforated part 4 and the second perforated part 5 are non-through holes having a substantially circular cross section that open on the surface of the first member 2.
  • the opening diameter R1 of the first perforation part 4 and the opening diameter R2 of the second perforation part 5 are preferably 30 ⁇ m or more and 100 ⁇ m or less. This is because, when the opening diameters R1 and R2 are less than 30 ⁇ m, the filling property to the first perforated part 4 and the second perforated part 5 of the second member 3 melted or softened at the time of joining deteriorates and the joining strength decreases. Because there is a case to do. On the other hand, if the opening diameters R1 and R2 exceed 100 ⁇ m, the number of the first perforated portions 4 and the second perforated portions 5 per unit area may decrease, and a desired joint strength may not be obtained.
  • the interval between the first perforations 4 (the distance between the center of a certain first perforation 4 and the center of the first perforation 4 adjacent to the first perforation 4) is 200 ⁇ m or less. Is preferred. This is because if the interval between the first perforated portions 4 exceeds 200 ⁇ m, the number of the first perforated portions 4 per unit area may decrease and a desired bonding strength may not be obtained. For the same reason, the interval between the second perforated portions 5 (the distance between the center of a certain second perforated portion 5 and the center of the second perforated portion 5 adjacent to the certain second perforated portion 5) is also 200 ⁇ m or less. It is preferable that
  • the processing depth of the first punching portion 4 and the second punching portion 5 is set.
  • the processing depth of the first perforated part 4 depends on the number and inner diameter of the first perforated parts 4 based on the stress value obtained when the stress concentration part 1A is specified by stress simulation using CAE or the like. What is necessary is just to set suitably.
  • the lower limit of the processing depth is preferably more than 30 ⁇ m for both the first perforated part 4 and the second perforated part 5 from the viewpoint of resistance to stress caused by the difference in linear expansion coefficient.
  • the first perforated portion 4 is formed with a narrowed portion 6 in which the hole wall 8 is narrowed inward.
  • the hole wall 8 of the first perforated part 4 has a first wall part 8a whose diameter increases in the depth direction (Z direction) from the bottom side to the surface side, and a surface side of the first wall part 8a.
  • the second wall portion 8b that is reduced in diameter toward the surface side from the end portion is formed so as to be continuous, and the portion constituting the opening portion in the second wall portion 8b that is reduced in diameter constitutes the throttle portion 6 at the same time. is doing.
  • the second perforated part 5 is also formed with a narrowed part 7 in which the hole wall is narrowed inward.
  • the narrowed portions 6 and 7 correspond to the “projecting portions projecting inward” in the present invention, and the “projecting portions” are holes of the first perforated portion 4 and the second perforated portion 5 having a substantially circular cross section. It is an example at the time of forming over the perimeter of a wall.
  • the dashed-two dotted line in FIG. 1 is a virtual line which shows the division
  • the restricting parts 6 and 7 are pulled out from the bottom part of the restricting parts 6 and 7, and the resistance in the peeling direction.
  • the joint strength can be improved.
  • the first perforation unit 4 and the second perforation unit 5 are formed by irradiating the surface portion of the first member 2 with laser light in which one pulse is composed of a plurality of sub-pulses.
  • Such a method of irradiating a laser beam composed of a plurality of sub-pulses makes it easy to concentrate the energy of the laser beam in the depth direction, so that the first punching portion 4 and the second punching portion 5 are formed. It is suitable for. Specifically, when the first member 2 is irradiated with the laser beam, the first member 2 is locally melted, so that the formation of the first perforated part 4 and the second perforated part 5 proceeds.
  • the melted first member 2 is not easily scattered and easily deposited in the vicinity of the first perforated part 4 and the second perforated part 5. Then, as the formation of the first perforated part 4 and the second perforated part 5 proceeds, the melted first member 2 is deposited inside the first perforated part 4 and the second perforated part 5, thereby reducing the throttle part 6. , 7 are formed.
  • fiber laser marker MX-Z2000 or MX-Z2050 manufactured by OMRON can be mentioned.
  • one period of the sub-pulse is 15 ns or less. This is because if one period of the sub-pulse exceeds 15 ns, energy is easily diffused by heat conduction, and it is difficult to form the first perforated part 4 and the second perforated part 5.
  • one cycle of the subpulse is a total time of the irradiation time for one subpulse and the interval from the end of the irradiation of the subpulse to the start of the irradiation of the next subpulse.
  • the number of subpulses of one pulse is preferably 2 or more and 50 or less. This is because if the number of subpulses exceeds 50, the output per unit of subpulses becomes small, and it becomes difficult to form the first perforated part 4 and the second perforated part 5.
  • Corresponding first drawing area 10A as shown in FIG. 2 (c) and second drawing area 10B as shown in FIG. 2 (b) corresponding to normal portion 1B are cut and divided.
  • the first perforated part of the stress concentrating part 1A can be obtained by increasing the processing output of the fiber laser or increasing the number of scans as compared with the second drawing area 10B. 4 can be made deeper easily than the processing depth of the second perforated portion 5 of the normal portion 1B.
  • Such a bonded structure 1 is applicable, for example, when a resin cover 13 is bonded to a metal case 12 of a photoelectric sensor (see FIG. 4).
  • the metal case 12 corresponds to the first member 2
  • the resin cover 13 corresponds to the second member 3.
  • the drawing area 10 on the surface of the first member 2 is, for example, as shown in FIG. 2, the first drawing area 10A corresponding to the identified stress concentration portion 1A and the second drawing area 10 corresponding to the normal portion 1B. It is divided into the drawing area 10B.
  • the surface of the first member 2 corresponding to the normal portion 1B is irradiated with a laser, and the processing depth is relatively set as shown in FIG.
  • the shallow second perforated portion 5 is formed (perforating step).
  • the surface of the first member 2 corresponding to the stress concentration portion 1A is irradiated with a laser, and the processing depth is the second as shown in FIG.
  • the first perforation part 4 deeper than the perforation part 5 is formed (perforation process).
  • the narrowed portions 6 and 7 are formed in the hole walls of the first perforated portion 4 and the second perforated portion 5 by irradiating a laser in which one pulse is composed of a plurality of subpulses.
  • first perforation part 4 and the formation of the second perforation part 5 are not particularly precedent.
  • the second perforation part is formed after the formation of the first perforation part 4 in the reverse order shown in FIG. 5 may be formed.
  • the surface of the first member 2 is irradiated with a laser in a state where the first member 2 and the second member 3 are overlapped to melt or soften the second member 3 (laser irradiation).
  • the melted second member 3 is injected (injection molding) to fill the first member 4 and the second member 5 with the second member 3.
  • the second member 3 filled in the first perforation unit 4 and the second perforation unit 5 is solidified in the first perforation unit 4 and the second perforation unit 5, whereby the first member 2 and the second member 3 are solidified.
  • the two members 3 are joined together to form a joined structure 1 as shown in FIG.
  • FIG. 4 is a diagram schematically showing the metal case 12 and the resin cover 13 of the photoelectric sensor according to this modification
  • FIG. 4A is a perspective view of the metal case 12 and the resin cover 13.
  • FIG. 4B is an enlarged cross-sectional view taken along line bb in FIG.
  • reference numeral 11A indicates a stress concentration part
  • reference numeral 11B indicates a normal part.
  • This modification is different from the first embodiment in that the processing depth of the second perforated part 15 becomes deeper in steps as it approaches the stress concentration part 11A.
  • the bonded structure 11 is formed by bonding a first member 12 constituting a metal case 12 and a second member 13 constituting a resin cover 13.
  • a first perforated portion 14 and a second perforated hole opened on the surface of the first member 12 are formed on the surface portion of the first member 12 constituting the joint interface between the first member 12 and the second member 13 in the joint structure 11.
  • a portion 15 is formed.
  • the first perforated part 14 and the second perforated part 15 are formed such that the processing depth of the first perforated part 14 in the stress concentration part 11A is deeper than the processing depth of the second perforated part 15 in the normal part 11B. ing.
  • the second perforated portion 15 of the normal portion 11B is formed so that the processing depth is closer to the stress concentration portion 11A. . That is, in this modification, the second drilling portion 15B farthest from the stress concentration portion 11A among the second drilling portions 15 of the normal portion 11B is the shallowest, and the second drilling portion 15B approaches the stress concentration portion 11A. The machining depth becomes deeper in the order of the second drilling portion 15C, and the machining depth of the second drilling portion 15D closest to the stress concentration portion 11A becomes the deepest.
  • the stress distribution is disturbed in areas other than the stress concentration portion 11A due to the difference in the linear expansion coefficient between the two members 12 and 13. According to this configuration, Since the machining depth of the second perforated part 15 closer to the concentrated part 11A is formed deeper, stress fracture other than the stress concentrated part 11A (normal part 11B) can also be efficiently suppressed.
  • two plate-like first members 32 each having a length of 100 mm, a width of 29 mm, and a thickness of 3 mm, each made of stainless steel (SUS304), were prepared.
  • the laser beam marker MX-Z2000 made by OMRON is used for one first member 32, and a laser is applied to a predetermined region R of 12.5 mm ⁇ 20.0 mm under the following laser irradiation conditions 1-1 and 1-2.
  • a perforated part was formed by irradiation. More specifically, an outer edge portion R A (black frame portion in FIG. 5) corresponding to the stress concentration portion in the predetermined region R is irradiated with laser under the following laser irradiation condition 1-1.
  • the laser in the laser irradiation conditions 1-2 below Irradiation formed a perforated portion with a processing depth of 39 ⁇ m.
  • a predetermined region R of 12.5 mm ⁇ 20.0 mm is obtained. Only a perforated part with a processing depth of 39 ⁇ m was formed.
  • Laser Fiber laser (wavelength 1062nm) Frequency: 10kHz Output: 3.8W Scanning speed: 650mm / sec Number of scans: 40 times Irradiation interval: 65 ⁇ m Number of subpulses: 20
  • Laser Fiber laser (wavelength 1062nm) Frequency: 10kHz Output: 3.8W Scanning speed: 650mm / sec Number of scans: 20 times Irradiation interval: 65 ⁇ m Number of subpulses: 20
  • the number of scans for forming the perforations in the outer part R A of one of the first member 32, the region R B The number of scans was set to 40, which is 20 times greater than the number of scans when forming the portion.
  • both the 1st members 32 set the irradiation space
  • both the first members 32 are set to a frequency of a pulse composed of 20 subpulses when the perforated part is formed. That is, under these irradiation conditions 1-1 and 1-2, laser (pulse) was irradiated 10,000 times at an interval of 65 ⁇ m while moving 650 mm per second, and the pulse was composed of 20 subpulses.
  • squeezing part was formed by irradiating the laser comprised with 20 subpulses per pulse.
  • a bonded structure in which a second member (not shown) is bonded to a predetermined region R is produced by insert molding with respect to the first member 32 in which the drilled portions having a processing depth of 65 ⁇ m and 39 ⁇ m are formed.
  • Example 1 a bonded structure in which the second member is bonded to the predetermined region R is manufactured by insert molding with respect to the other first member 32 in which only the perforated portion with a processing depth of 39 ⁇ m is formed.
  • polybutylene terephthalate (PBT) (Juranex (registered trademark) 3316 made by Wintech Polymer) was used as a material, and a plate of length 100 mm ⁇ width 25 mm ⁇ thickness 3 mm Formed into a shape.
  • J35EL3 made from Japan Steel Works was used for the molding machine. The molding conditions are as follows.
  • Example 1 and Comparative Example 1 produced as described above, a thermal shock test was performed using a thermal shock apparatus TSD-100 manufactured by ESPEC. Specifically, a thermal shock of one cycle and one hour of 30 minutes in an environment of ⁇ 40 ° C. and 30 minutes in an environment of 85 ° C. is continuously applied to Example 1 and Comparative Example 1 until the bonding interface reaches peeling. It was. The confirmation of whether or not the bonding interface had been peeled was performed after applying thermal shocks of 0, 100, 250, 500, 750, 1000, 1500 and 2000 cycles (times), respectively. And when the joining interface reached peeling in a certain cycle, the cycle in which peeling of the previous joining interface was not confirmed was adopted as the thermal shock test resistance. For example, when peeling of the bonding interface was confirmed after 1000 thermal shocks were applied, the previous 750 times were regarded as thermal shock test resistance.
  • the thermal shock test resistance obtained for Example 1 and Comparative Example 1 is shown in Table 1.
  • Example 1 in which the working depth of the perforated part of the stress concentrated part is deeper than the processed depth of the perforated part of the normal part in the joined structure in which the metal member and the resin member are joined, It was confirmed that the thermal shock test resistance was improved by a factor of 1.5 compared to Comparative Example 1 in which the drilling depth of each of the drill holes was the same as the drilling depth of the normal hole.
  • two plate-shaped first members each having a length of 100 mm, a width of 29 mm, and a thickness of 3 mm, each made of polyphenylene sulfide (PPS) (Polyplastics Fortron (registered trademark) 1140) were prepared.
  • PPS polyphenylene sulfide
  • For one of the first members using a fiber laser marker MX-Z2000 made by OMRON, corresponding to the stress concentration portion in the predetermined region R of 12.5 mm ⁇ 20.0 mm, similar to that shown in FIG. With respect to the outer edge portion R A having a width of 1.0 mm (corresponding to the black frame portion in FIG.
  • a laser-irradiated laser is applied under the laser irradiation condition 2-1 below to form a punched portion having a processing depth of 71 ⁇ m.
  • a perforated portion having a processing depth of 49 ⁇ m is formed by irradiating a laser under the following laser irradiation condition 2-2.
  • the other first member is processed into a predetermined region R of 12.5 mm ⁇ 20.0 mm by irradiating a laser under the following laser irradiation condition 2-2 using the same fiber laser marker MX-Z2000. Only a perforated part having a depth of 49 ⁇ m was formed.
  • Laser Fiber laser (wavelength 1062nm) Frequency: 10kHz Output: 1.1W Scanning speed: 650mm / sec Number of scans: 10 times Irradiation interval: 65 ⁇ m Number of subpulses: 5
  • Laser Fiber laser (wavelength 1062nm) Frequency: 10kHz Output: 1.1W Scanning speed: 650mm / sec Number of scans: 3 times Irradiation interval: 65 ⁇ m Number of subpulses: 5
  • a joined structure in which the second member was joined to the predetermined region R was produced by insert molding with respect to one of the first members in which the perforated portions having a processing depth of 71 ⁇ m and 49 ⁇ m were formed.
  • a joined structure in which the second member was joined to the predetermined region R was produced by insert molding with respect to the other first member in which only the perforated portion having a processing depth of 49 ⁇ m was formed.
  • the 2nd member used the polybutylene terephthalate as a material similarly to the said Experimental example 1.
  • the molding machine and molding conditions were the same as in Experimental Example 1 above.
  • Example 2 and Comparative Example 2 produced as described above, the same thermal shock test as in Experimental Example 1 was performed, and the thermal shock test resistance was obtained by the same evaluation method.
  • Table 2 shows the thermal shock test resistance obtained for Example 2 and Comparative Example 2.
  • Example 2 in which the processing depth of the perforated portion of the stress concentration portion was deeper than the processing depth of the perforated portion of the normal portion in the joined structure in which the resin members were joined, the perforated portion of the stress concentration portion It was confirmed that the thermal shock test resistance was improved twice as much as that of Comparative Example 2 in which the machining depth was the same as the machining depth of the perforated part of the normal part.
  • Embodiment 2 The present embodiment is different from the first embodiment in that the number per unit area of the first perforated part 24 in the stress concentration part 21A is different from the number per unit area of the second perforated part 25 in the normal part 21B. It is. Hereinafter, a description will be given focusing on differences from the first embodiment.
  • FIG. 6 is a plan view schematically showing the first member 22 used in the joint structure according to the present embodiment.
  • reference numeral 21A indicates a portion corresponding to the stress concentration portion
  • reference numeral 21B indicates a portion corresponding to the normal portion.
  • the surface area of the first perforated portion 24 per unit volume of the stress concentration portion 21A in the surface portion of the first member 22 is the second per unit volume of the normal portion 21B.
  • the first perforated part 24 and the second perforated part 25 are formed by irradiating the surface of the first member 22 with a laser so as to be larger than the surface area of the perforated part 25.
  • the surface area of the first perforated part 24 per unit volume of the stress concentration part 21A is larger than the surface area of the second perforated part 25 per unit volume of the normal part 21B.
  • the first perforated part 24 is so formed that the number of the first perforated parts 24 per unit area in the stress concentration part 21A is larger than the number of the second perforated parts 25 per unit area in the normal part 21B. And the 2nd perforation part 25 is formed.
  • the surface area of the first perforated part 24 per unit volume in the stress concentration part 21A is determined as the unit in the normal part 21B.
  • the surface area of the second perforated part 25 per volume can be easily increased. Therefore, since the contact area between the hole wall of the first perforated part 24 and the filled second member 3 is increased, the hole wall of the first perforated part 24 (or the surface of the filled second member 3) is formed. Since the acting force is dispersed and the stress is reduced, the stress fracture at the stress concentration portion 21A can be suppressed.
  • the types of the metal, thermoplastic resin, and thermosetting resin that constitute the first member 22 are the same as the metal, thermoplastic resin, and thermosetting resin that constitute the first member 2 described in the first embodiment. It is.
  • two plate-shaped first members each having a length of 100 mm, a width of 29 mm, and a thickness of 3 mm, each made of stainless steel (SUS304), were prepared.
  • an outer edge portion R A width 1.0 mm
  • a perforated portion is formed at an irradiation interval of 50 ⁇ m by irradiating a laser under the following laser irradiation condition 3-1, and the outer edge portion RA of the predetermined region R is excluded.
  • Laser Fiber laser (wavelength 1062nm) Frequency: 10kHz Output: 3.8W Scanning speed: 650mm / sec Number of scans: 20 times Irradiation interval: 50 ⁇ m Number of subpulses: 20
  • Laser Fiber laser (wavelength 1062nm) Frequency: 10kHz Output: 3.8W Scanning speed: 650mm / sec Number of scans: 20 times Irradiation interval: 65 ⁇ m Number of subpulses: 20
  • a joined structure in which the second member was joined to the predetermined region R was produced by insert molding with respect to one of the first members having the perforations formed at irradiation intervals of 50 ⁇ m and 65 ⁇ m. Further, a joined structure in which the second member was joined to the predetermined region R was produced by insert molding with respect to the other first member in which the perforated part was formed with an irradiation interval of 65 ⁇ m, and this was designated as Comparative Example 3.
  • the 2nd member used the polybutylene terephthalate as a material similarly to the said Experimental example 1. The molding machine and molding conditions were the same as in Experimental Example 1 above.
  • Example 3 and Comparative Example 3 produced as described above, the same thermal shock test as in Experimental Example 1 was performed, and thermal shock resistance was obtained by the same evaluation method.
  • Table 3 shows thermal shock test resistance obtained for Example 3 and Comparative Example 3.
  • Example 3 in which the number of perforated parts per unit area of the stress concentration part was larger than the number of perforated parts per unit area of the normal part.
  • the thermal shock test resistance was improved 1.5 times as compared with Comparative Example 3 in which the number of perforated parts per unit area of the stress concentration part was the same as the number of perforated parts per unit area of the normal part. It was.
  • the thermal shock test resistance obtained in this experimental example is the same as the thermal shock test resistance obtained in experimental example 1, stress concentration is caused in a bonded structure in which a metal member and a resin member are bonded. There was no difference between the method of increasing the drilling depth of the perforated part and the method of increasing the number of perforated parts per unit area of the stress concentration part, and it was also confirmed that both methods could be used selectively .
  • two plate-shaped first members each having a length of 100 mm, a width of 29 mm, and a thickness of 3 mm, each made of polyphenylene sulfide (PPS) (Polyplastics Fortron (registered trademark) 1140) were prepared.
  • PPS polyphenylene sulfide
  • an outer edge portion R A width 1.0 mm
  • R A width 1.0 mm
  • a perforated portion is formed at an irradiation interval of 50 ⁇ m by irradiating a laser under the following laser irradiation condition 4-1, and an outer edge portion RA of the predetermined region R is excluded. and for region R B of 10.5 mm ⁇ 18.0 mm, to form the perforations in irradiation interval 65 ⁇ m by irradiating a laser in a laser irradiation conditions 4-2 below. Further, by irradiating the other first member with a laser under the following laser irradiation condition 4-2 using the same fiber laser marker MX-Z2000, a predetermined region R of 12.5 mm ⁇ 20.0 mm is irradiated. Perforated portions were formed at intervals of 65 ⁇ m.
  • Laser Fiber laser (wavelength 1062nm) Frequency: 10kHz Output: 1.1W Scanning speed: 650mm / sec Number of scans: 3 times Irradiation interval: 50 ⁇ m Number of subpulses: 5
  • Laser Fiber laser (wavelength 1062nm) Frequency: 10kHz Output: 1.1W Scanning speed: 650mm / sec Number of scans: 3 times Irradiation interval: 65 ⁇ m Number of subpulses: 5
  • a joined structure in which the second member was joined to the predetermined region R was produced by insert molding with respect to the first member in which the perforated part was formed at irradiation intervals of 50 ⁇ m and 65 ⁇ m. Further, a joined structure in which the second member was joined to the predetermined region R was produced by insert molding with respect to the other first member in which the perforated part was formed with an irradiation interval of 65 ⁇ m, and this was designated as Comparative Example 4.
  • the 2nd member used the polybutylene terephthalate as a material similarly to the said Experimental example 1. The molding machine and molding conditions were the same as in Experimental Example 1 above.
  • Example 4 and Comparative Example 4 produced as described above, the same thermal shock test as in Experimental Example 1 was performed, and the thermal shock test resistance was obtained by the same evaluation method.
  • Table 4 shows thermal shock test resistance obtained for Example 4 and Comparative Example 4.
  • Example 4 in which the number of perforated parts per unit area of the stress concentration part is larger than the number of perforated parts per unit area of the normal part in the joined structure in which the resin members are joined together, It was confirmed that the thermal shock test resistance was improved twice as much as that of Comparative Example 4 in which the number of perforated portions per unit area of the concentrated portion was the same as the number of perforated portions per unit area of the normal portion.
  • thermal shock test resistance obtained in this experimental example is the same as the thermal shock test resistance obtained in experimental example 2, even in a joined structure in which resin members are joined together, It was also confirmed that there is no difference between the method of increasing the processing depth of the punched portion and the method of increasing the number of punched portions per unit area of the stress concentration portion, and both methods can be selectively used.
  • the first perforated part 4 and the second perforated part 5 having the throttle parts 6 and 7 are formed, but not limited thereto, the first perforated part 4 and the second perforated part 5
  • the shape may be a straight shape without the throttle portions 6 and 7.
  • the number of first perforations 24 per unit area in the stress concentration portion 21A is simply larger than the number of second perforations 25 per unit area in the normal portion 21B.
  • the 1st perforation part 24 and the 2nd perforation part 25 were formed, it is not restricted to this,
  • the 2nd perforation part 25 is formed so that the number per unit area may increase so that it may be near the stress concentration part 21A. May be.
  • the manufacturing method of the joined structure in which the dissimilar members are joined together, and the dissimilarity is extremely useful when applied to a joined structure in which members are joined together.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Thermal Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Laser Beam Processing (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne : un procédé de production d'une structure assemblée obtenue par assemblage d'un premier élément et d'un second élément comprenant une résine ; et la structure assemblée obtenue par assemblage du premier élément et du second élément. Le procédé de production de la structure assemblée comprend : une étape d'alésage qui consiste à exposer une partie de surface du premier élément formant la surface destinée à être assemblée au second élément à un laser pour former une pluralité de trous d'alésage, de façon que l'aire des premiers trous d'alésage par unité de volume dans une région correspondant à une partie de concentration de contrainte soit supérieure à l'aire de seconds trous d'alésage par unité de volume dans une région excluant la région précitée ; et une étape d'assemblage qui consiste à assembler le premier élément et le second élément par remplissage de la pluralité de trous d'alésage avec le second élément. La structure assemblée est obtenue par : exposition, à un laser, de la partie de surface du premier élément pour former la pluralité de trous d'alésage, de façon que l'aire des trous d'alésage par unité de volume dans la partie de concentration de contrainte soit supérieure à l'aire des trous d'alésage par unité de volume dans une partie excluant la partie de concentration de contrainte ; et le remplissage de la pluralité de trous d'alésage avec le second élément.
PCT/JP2016/054420 2015-02-19 2016-02-16 Procédé de production d'une structure assemblée, et structure assemblée WO2016133079A1 (fr)

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JP2015030369A JP6398778B2 (ja) 2015-02-19 2015-02-19 接合構造体の製造方法および接合構造体

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018235960A1 (fr) * 2017-06-23 2018-12-27 日立オートモティブシステムズ株式会社 Dispositif de commande électronique
WO2020261821A1 (fr) * 2019-06-25 2020-12-30 オムロン株式会社 Structure d'assemblage

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6441295B2 (ja) * 2016-12-26 2018-12-19 本田技研工業株式会社 接合構造体及びその製造方法
DE102017211670A1 (de) * 2017-07-07 2019-01-10 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät und Verfahren
JP7365245B2 (ja) * 2020-01-10 2023-10-19 ポリプラスチックス株式会社 複合成形品およびその成形品に使用する部材

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008249090A (ja) * 2007-03-30 2008-10-16 Ube Ind Ltd レーザー溶着用継手及びそれを用いたパイプ形状品の接続方法
JP2010274279A (ja) * 2009-05-27 2010-12-09 Nagoya Industrial Science Research Inst レーザを用いた部材の接合方法
JP2011143539A (ja) * 2010-01-12 2011-07-28 Nippon Light Metal Co Ltd アルミニウム合金板と樹脂部材とのレーザー接合方法
JP2014166693A (ja) * 2013-02-28 2014-09-11 Daicel Polymer Ltd 複合成形体とその製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008249090A (ja) * 2007-03-30 2008-10-16 Ube Ind Ltd レーザー溶着用継手及びそれを用いたパイプ形状品の接続方法
JP2010274279A (ja) * 2009-05-27 2010-12-09 Nagoya Industrial Science Research Inst レーザを用いた部材の接合方法
JP2011143539A (ja) * 2010-01-12 2011-07-28 Nippon Light Metal Co Ltd アルミニウム合金板と樹脂部材とのレーザー接合方法
JP2014166693A (ja) * 2013-02-28 2014-09-11 Daicel Polymer Ltd 複合成形体とその製造方法

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018235960A1 (fr) * 2017-06-23 2018-12-27 日立オートモティブシステムズ株式会社 Dispositif de commande électronique
JP2019006011A (ja) * 2017-06-23 2019-01-17 日立オートモティブシステムズ株式会社 電子制御装置
WO2020261821A1 (fr) * 2019-06-25 2020-12-30 オムロン株式会社 Structure d'assemblage
JP2021003819A (ja) * 2019-06-25 2021-01-14 オムロン株式会社 接合構造体
CN113840682A (zh) * 2019-06-25 2021-12-24 欧姆龙株式会社 接合结构体
JP7268500B2 (ja) 2019-06-25 2023-05-08 オムロン株式会社 接合構造体
CN113840682B (zh) * 2019-06-25 2024-04-05 欧姆龙株式会社 接合结构体以及包括其的开关、光电传感器及近接传感器

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