CH692091A5 - Method for assembly of parts made of wood or wood-like materials. - Google Patents

Method for assembly of parts made of wood or wood-like materials. Download PDF

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Publication number
CH692091A5
CH692091A5 CH02102/94A CH210294A CH692091A5 CH 692091 A5 CH692091 A5 CH 692091A5 CH 02102/94 A CH02102/94 A CH 02102/94A CH 210294 A CH210294 A CH 210294A CH 692091 A5 CH692091 A5 CH 692091A5
Authority
CH
Switzerland
Prior art keywords
parts
characterized
wood
method according
welding
Prior art date
Application number
CH02102/94A
Other languages
German (de)
Inventor
Heinrich Koester
Laurant Torriani
Peter Perlen
Marcel Aeschlimann
Elmar Mock
Original Assignee
Woodwelding Ag
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 Woodwelding Ag filed Critical Woodwelding Ag
Priority to CH02102/94A priority Critical patent/CH692091A5/en
Publication of CH692091A5 publication Critical patent/CH692091A5/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5057Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like positioned between the surfaces to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805Joining 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
    • B29C65/481Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815Hot melt adhesives, e.g. thermoplastic adhesives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/562Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using extra joining elements, i.e. which are not integral with the parts to be joined
    • B29C65/564Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using extra joining elements, i.e. which are not integral with the parts to be joined hidden in the joint, e.g. dowels or Z-pins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/60Riveting or staking
    • B29C65/601Riveting or staking using extra riveting elements, i.e. the rivets being non-integral with the parts to be joined
    • B29C65/603Riveting or staking using extra riveting elements, i.e. the rivets being non-integral with the parts to be joined the rivets being pushed in blind holes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint 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
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint 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
    • B29C66/114Single butt joints
    • B29C66/1142Single butt to butt joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint 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
    • B29C66/116Single bevelled joints, i.e. one of the parts to be joined being bevelled in the joint area
    • B29C66/1162Single bevel to bevel joints, e.g. mitre joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124Tongue and groove joints
    • B29C66/1242Tongue and groove joints comprising interlocking undercuts
    • B29C66/12423Dovetailed interlocking undercuts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124Tongue and groove joints
    • B29C66/1248Interpenetrating groove joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/20Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/22Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns
    • B29C66/227Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns being in the form of repetitive interlocking undercuts, e.g. in the form of puzzle cuts
    • B29C66/2274Dovetailed interlocking undercuts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/302Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30223Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/40General 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
    • B29C66/41Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43Joining a relatively small portion of the surface of said articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/40General 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
    • B29C66/41Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43Joining a relatively small portion of the surface of said articles
    • B29C66/434Joining substantially flat articles for forming corner connections, fork connections or cross connections
    • B29C66/4342Joining substantially flat articles for forming corner connections, e.g. for making V-shaped pieces
    • B29C66/43421Joining substantially flat articles for forming corner connections, e.g. for making V-shaped pieces with a right angle, e.g. for making L-shaped pieces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/74Joining plastics material to non-plastics material
    • B29C66/748Joining plastics material to non-plastics material to natural products or their composites, not provided for in groups B29C66/742 - B29C66/746
    • B29C66/7487Wood
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832Reciprocating joining or pressing tools
    • B29C66/8322Joining or pressing tools reciprocating along one axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805Joining 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
    • B29C65/481Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/482Drying adhesives, e.g. solvent based adhesives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805Joining 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
    • B29C65/481Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4825Pressure sensitive adhesives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805Joining 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
    • B29C65/483Reactive adhesives, e.g. chemically curing adhesives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/60Riveting or staking
    • B29C65/601Riveting or staking using extra riveting elements, i.e. the rivets being non-integral with the parts to be joined
    • B29C65/603Riveting or staking using extra riveting elements, i.e. the rivets being non-integral with the parts to be joined the rivets being pushed in blind holes
    • B29C65/604Riveting or staking using extra riveting elements, i.e. the rivets being non-integral with the parts to be joined the rivets being pushed in blind holes in both parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/71General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/73General 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
    • B29C66/731General 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 intensive physical properties of the material of the parts to be joined
    • B29C66/7316Surface properties
    • B29C66/73161Roughness or rugosity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/73General 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
    • B29C66/739General 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
    • B29C66/7392General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/73General 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
    • B29C66/739General 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
    • B29C66/7394General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2711/00Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
    • B29K2711/14Wood, e.g. woodboard or fibreboard

Description


  



   Die Erfindung liegt auf dem Gebiete der Holzverarbeitungstechnik und betrifft ein Verfahren gemäss dem ersten unabhängigen Patentanspruch zum Zusammenfügen von Teilen aus Holz oder aus holzähnlichen Materialien. The invention is in the field of wood processing technology and relates to a method according to the first independent claim for the assembly of parts made of wood or wood-like materials. 



   Teile aus Holz oder holzähnlichen Materialien (Holzwerkstoffen), wie beispielsweise Sperrholz oder Spanplatten, werden gemäss dem Stande der Technik zusammengefügt, entweder durch mechanische Verbindungsmittel, wie beispielsweise Schrauben oder Nägel, oder sie werden verleimt, wobei üblicherweise auf beide zusammenzufügenden Oberflächen ein Klebstoff aufgebracht wird und die beiden Oberflächen dann während einer von der Art des Klebstoffes abhängigen Trocknungs- oder Erhärtungszeit zusammengepresst werden. Parts made of wood or wood-like materials (wood materials), such as plywood or particle board are assembled according to the state of the art, either being typically an adhesive is applied by mechanical connecting means, such as screws or nails, or they are glued to both mating surfaces and the two surfaces are then pressed together during a time depending on the type of adhesive drying or curing time. 



   Sollen die durch das Zusammenfügen herzustellenden Gegenstände lackiert, das heisst mit einem farblosen Lack oder einer Farbe behandelt werden, ergeben sich je nach Fügetechnik und verwendetem Lack die folgenden Schwierigkeiten: beim Schrauben oder Nageln kann eine Verletzung einer vorher aufgebrachten Farb- oder Lackschicht kaum verhindert werden; Are painted the produced by joining objects, that is, with a colorless lacquer or paint to be treated, there are, depending on the joining technology and the used paint, the following difficulties: while screws or nails may be a violation of a previously applied ink or coating layer hardly prevents ;  Lack schichten auf durch Leimen zusammenzufügenden Oberflächen können die Hafteigenschaften des Klebstoffes negativ beeinflussen; Varnish layers joined together by gluing surfaces, the adhesive properties of the adhesive may adversely affect;  aus Verbindungsstellen ausgepresster Klebstoff kann die Hafteigenschaften von nachträglich aufgetragenen Farben und Lacken negativ beeinflussen oder vor dem Leimen aufgebrachte Lacke oder Farben verfärben. from joints squeeze of adhesive, the adhesive properties of subsequently applied inks and paints may adversely affect or change color before the sizing applied lacquers or paints. 



   Es ist nun die Aufgabe der Erfindung, ein Verfahren zum Zusammenfügen von Teilen aus Holz oder holzähnlichen Materialien aufzuzeigen, das einfach ist und sich insbesondere eignet für die Herstellung von mit Schutz- und/oder Farblack lackierten Gegenständen aus einzelnen, zusammenzufügenden Teilen. It is now the object of the invention to provide a method for assembly of parts made of wood or wood-like materials show, which is simple and particularly suitable for the production of lacquered with protective and / or colored coating objects made of individual mating parts. 



   Diese Aufgabe wird gelöst durch das Verfahren, wie es in den Patentansprüchen definiert ist. This object is achieved by the method as defined in the claims. 



   Das Verfahren besteht im Wesentlichen aus zwei Schritten. The method consists essentially of two steps.  In einem ersten Schritt wird mindestens einer von zwei zusammenzufügenden Teilen aus Holz oder holzähnlichem Material mit einem Schutz- und/oder Farblack lackiert, das heisst, er wird mit einem Lack behandelt, dessen an sich bekannte Funktion es ist, die Holzoberfläche beispielsweise gegen Witterungseinflüsse zu schützen und/oder dieser Oberfläche eine bestimmte Farbe zu verleihen. In a first step, a mating of two parts made of wood or wood-like material is at least coated with a protective and / or color coat, that is, it is treated with a varnish, which is known per se function is the wood surface, for example against weather influences to protect and / or the surface to give a particular color.  Die Behandlung mit dem Lack besteht dabei aus dem Aufbringen des Lackes, beispielsweise durch Streichen, Spritzen, Tauchen, Rollwalzen oder Giessen, und aus einem darauf folgenden Abwarten, bis der Lack getrocknet oder erhärtet ist, wobei das Auftragen und Trocknenlassen wiederholt werden kann und wobei beispielsweise als Erstes eine Grundierung und dann erst der Lack aufgetragen wird. The treatment with the coating consists of the application of the paint, for example by brushing, spraying, dipping, rolling rolls or watering, and a subsequent waiting until the paint dried or hardened, wherein the coating and drying Let can be repeated, and wherein only then the paint is applied, for example, the first thing a primer and.

    Die Lackierung kann sich auf zusammenzufügende Oberflächenbereiche beschränken, erstreckt sich aber vorteilhafterweise über wei tere, zur Oberfläche des fertigen Gegenstandes gehörende Bereiche oder über ganze zusammenzufügende Teile. The paint may be limited to interengaging surface areas, but advantageously extends over wei tere, to the surface of the finished article or part of areas on all the interengaging parts. 



   In einem zweiten Schritt werden dann die zusammenzufügenden Oberflächen, von denen nur die eine oder beide eine Lackschicht (vorteilhafterweise trocken bzw. erhärtet) tragen, aufeinander gebracht und mittels mechanischer Anregung verschweisst. then in a second step the mating surfaces, of which only one or both of a resist film (dry advantageously or hardened) carry, brought together and welded by means of mechanical stimulation.  Die mechanische Anregung geschieht vorzugsweise durch Ultraschallwellen (Ultraschallschweissen), wobei mindestens die eine der zu verbindenden Oberflächen zu Schwingungen mit Ultraschallfrequenz und senkrecht zu dieser Oberfläche angeregt wird. The mechanical excitation is preferably effected by ultrasonic waves (ultrasonic welding), at least one of the surfaces to be joined is excited to vibrate at ultrasonic frequency and perpendicular to this surface.  Dazu wird mindestens einer der zusammenzufügenden Teile mindestens im Bereiche der zu erstellenden Verbindung zwischen einer mit Ultraschall anregbaren Fläche (Arbeitsfläche einer Sonotrode) und einem Amboss unter einem Schweissdruck gehalten und mit Ultraschallwellen beaufschlagt. For this purpose, at least one of the parts to be joined is maintained at least in the region of the created connection between a stimulable ultrasonic surface (working surface of a sonotrode) and an anvil under a welding pressure and subjected to ultrasonic waves.

    Nach einer kurzen Schweisszeit und vorzugsweise einer kurzen Haltezeit sind die Teile durch eine Verschweissung der einen Lackschicht mit der Holzoberfläche oder der beiden Lackschichten der Verbindungsstelle miteinander verbunden. After a short welding time, and preferably a short holding time the parts are joined together by a welding of a varnish layer to the wood surface or of the two lacquer layers of the joint. 



   Es ist auch möglich, die Verschweissung vorzunehmen, bevor die zuletzt aufgetragene Lackschicht völlig trocken bzw. erhärtet ist. It is also possible to perform the welding, before the previously applied coating layer dry completely or is hardened.  Es zeigt sich für einen derartigen Fall, dass die Trocknung bzw. Erhärtung durch die Verschweissung sogar beschleunigt wird. It turns out for such a case that the drying or hardening is even accelerated by the welding. 



   An Stelle einer Ultraschallverschweissung kann auch eine Reibschweissung oder Orbitalschweissung zur Anwendung kommen, wobei die zu verbindenden Oberflächen im Wesentlichen parallel zueinander bewegt werden (gradlinig oder zyklisch). Instead of an ultrasonic welding and friction welding or orbital welding can be applied, wherein the surfaces to be joined are moved parallel to each other substantially (straight or cyclic). 



   Die Bedingungen, die das erfindungsgemässe Verfahren an die zusammenzufügenden Teile und an den Lack stellt, sind die folgenden: The conditions which illustrates the inventive method to the parts to be assembled and to the coating material are the following:
  - Der Lack muss in seinem trockenen bzw. erhärteten Zustand einen thermoplastischen Bestandteil aufweisen, was für viele handelsübliche, synthetische Lacke (farblos oder farbig), sowohl wasserlöslicher oder lösungsmittellöslicher Art der Fall ist. - The varnish must be in its dry or hardened state have a thermoplastic component, which is (colorless or colored) for many commercial, synthetic paints, both water-soluble or solvent-soluble type of case.
  - Die aneinander zu fügenden Oberflächen der Teile müssen innerhalb relativ enger Grenzen parallel sein, wobei Holzoberflächen mit einer für zu lackierende Flächen normalen Rauheit ohne Probleme verarbeitet werden können. - The adjacent surfaces to be joined of the parts must be parallel within relatively narrow limits, wherein wood surfaces can be processed with a normal for surfaces to be painted roughness without problems.  Ferner müssen die zu verbindenden Oberflächen für die sehr kurze Schweisszeit (Grössenordnung: eine Sekunde) und gegebenenfalls eine ebenfalls kurze Haltezeit (Grössenordnung: einige Sekunden) gegeneinander pressbar und seitlich führbar sein. and optionally a likewise short holding time (order of magnitude: a few seconds): Further, the surfaces to be connected for the very short welding time (one second order of magnitude) have to be pressed against one another and can be guided laterally. 



   Die Vorteile des erfindungsgemässen Verfahrens sind die folgenden: The advantages of the novel process are the following:
  - Für zwei Funktionen muss nur ein einziger Stoff (Lack) auf die Oberflächen der Teile aufgetragen werden: an Oberflächen des fertigen Gegenstandes übernimmt der Lack eine Schutz- und/oder Färbefunktion, an den zusammenzufügenden Oberflächen der Teile die Funktion eines Verbindungsmittels (vergleichbar mit der Funktion eines Klebstoffes) in Form einer verschweissbaren Beschichtung. - For two functions, only a single material (paint) must be applied to the surfaces of the parts: on surfaces of the finished article of the paint takes on a protective and / or coloring function, the mating surfaces of the parts, the function of a bonding agent (similar to the function of an adhesive) in the form of a weldable coating.
  - Die Herstellung eines aus Teilen zusammengefügten und lackierten Gegenstandes wird beschleunigt, da für das Zusammenfügen das Auftragen eines Klebstoffes und eine Trocknungs- bzw. Erhärtungszeit für den Klebstoff entfällt. - The production of a assembled from parts and painted article is accelerated, as for the assembly eliminates the application of an adhesive and a drying or curing time for the adhesive.  Die notwendigen Schweisszeiten (inkl. The necessary welding times (incl.

    Haltezeit) sind sehr klein (wenige Sekunden). Hold time) are very small (a few seconds). 
  - Die Herstellung mehrfarbiger Gegenstände wird erleichtert durch Färben von Teilen und nachträglichem Zusammenfügen. - The production of multicolored objects is facilitated by coloring of parts and of later joining.
  - Es können statt ganzer Gegenstände einzelne Teile lackiert werden, was insbesondere bei grösseren Gegenständen und Tauch- oder Tunnel-Lackierverfahren eine Verkleinerung der notwendigen Apparaturen zur Folge haben kann. - It can be painted rather than entire objects individual parts, which especially for larger items and dip or tunnel-painting a reduction of the necessary equipment can result.
  - An Gegenständen mit mehreren Fügestellen können diese, ohne die für das Zusammenfügen notwendige Zeit gewaltig zu erhöhen, nacheinander verschweisst werden, sodass notwendige Einspannvorrichtungen einfacher und kleiner werden können. - On objects with multiple joints they can, without the necessary for the assembly time to increase tremendously, are welded in succession, so that the necessary clamping devices can be simpler and smaller.
  - Zwischen Lackieren und Verschweissen können beliebig lange Lagerzeiten eingeschaltet werden. - Between painting and welding arbitrarily long storage times can be turned on. 



   Versuche mit Teilen aus Buchen- und Fichtenholz, die mit Lacken auf Acrylbasis durchgeführt wurden, zeigen, dass bei Lackierungen mit üblichen Schichtdicken im Bereiche von 0,1 mm durch Ultraschallschweissen Verbindungen entstehen mit Zugscherfestigkeiten im Bereiche von 5 N/mm<2>, was der Festigkeit von mit üblichen Klebstoffen hergestellten Verbindungen zwischen Holzteilen und der Zugfestigkeit beispielsweise von europäischen Nadelhölzern selbst entspricht. Experiments with parts of beech and pine wood which have been carried out with paints, acrylic-based, show that coatings with usual layer thicknesses in the range of 0.1 mm by ultrasonic welding compounds are formed with lap shear strength in the range of 5 N / mm <2>, which the strength of available adhesives made with connections between pieces of wood and the tensile strength, for example, by European softwood corresponds to itself. 



   Das erfindungsgemässe Verfahren wird anhand der folgenden Figuren mehr im Detail beschrieben. The inventive method is described using the following figures in more detail.  Dabei zeigen: They show: 
 
    Fig. 1 eine beispielhafte Anordnung zur Durchführung des erfindungsgemässen Verfahrens; Fig. 1 shows an exemplary arrangement for carrying out the inventive method; 
    Fig. 2 und 3 Versuchsresultate mit Schweissverbindungen zwischen lackierten Teilen aus Fichtenholz (Fig. 2) und Buchenholz (Fig. 3); . (Fig. 2) Figure 2 and 3, test results with welded joints between painted parts of pine and beech wood (Fig. 3); 
    Fig. 4 bis 6 weitere beispielhafte Anordnungen zur Durchführung des erfindungsgemässen Verfahrens. Fig. 4 to 6 further exemplary arrangements for carrying out the inventive method. 
 



   Fig. 1 zeigt eine beispielhafte Anordnung für die Durchführung des erfindungsgemässen Verfahrens. Fig. 1 shows an exemplary arrangement for carrying out the inventive method.  Für die Verschweissung von lackierten Holzteilen A und B wird eine an sich bekannte Ultraschall-Schweissanlage verwendet. a known ultrasonic welding system is used for the welding of varnished wood parts A and B.  Diese weist einerseits eine mit Ultraschall anregbare Fläche 1 (Arbeitsfläche einer Sonotrode 4) und eine stabile Ambossfläche 2 auf, wobei die zu verbindenden Teile A und B, die beispielsweise eine allseitige Lackschicht L tragen (oder wenigstens einer davon, siehe weiter unten), unter einem Schweissdruck P zwischen Sonotroden-Arbeitsfläche 1 und Ambossfläche 2 gehalten werden. This on the one hand has a stimulable ultrasonic surface 1 (operation surface of a sonotrode 4) and a stable anvil surface 2, wherein the parts to be joined A and B, for example, carry on all sides lacquer layer L (or at least one of which, see below), including a welding pressure P between sonotrode work surface 1 and the anvil surface 2 are maintained.  Um eine seitliche Verschiebung der zusammenzufügenden Teile A und B zu verhindern, sind üblicherweise auch seitliche Haltemittel (in der Figur durch Pfeile S angedeutet) notwendig. In order to prevent lateral displacement of the parts to be joined A and B, usually, lateral holding means (indicated in the figure by arrows S) is necessary. 



   Die Ultraschallschweissanlage besitzt zur Erzeugung und Übertragung der Ultraschallenergie die folgenden (in der Fig. 1 nicht dargestellten) Teile: einen Generator zur Erzeugung elekromagnetischer Wellen mit einer Frequenz üblicherweise im Bereiche von ca. 18 kHz bis 140 kHz (beispielsweise 20 oder 40 kHz), einen Konverter, der die elektromagnetischen Wellen in mechanische Wellen verwandelt und meist eine Verbindung von mehreren piezoelektrischen Elementen ist, und einen Resonanzteil (oft zweiteilig: Booster und Sonotrode 4), durch den die erzeugten, mechanischen Wellen gegebenenfalls amplitudentransformiert über die bereits erwähnte anregbare Fläche 1 (Arbeitsfläche der Sonotrode 4) auf den einen der zu verschweissenden Teile (A) durch mechanische Koppelung übertragen werden. The welding press has for the generation and transmission of ultrasonic energy, the following (in Figure 1 is not shown.) Parts: a generator for generating excessive electro waves at a frequency typically in the range of about 18 kHz to 140 kHz (for example, 20 or 40 kHz), a converter that transforms the electromagnetic waves into mechanical waves and usually is a combination of a plurality of piezoelectric elements, and a resonating part (often in two parts: booster and sonotrode 4) through which the generated waves, mechanical optionally amplitude transformed via the already mentioned stimulable surface 1 (working surface of the sonotrode 4) on the one of the transferred parts to be welded (a) by mechanical coupling. 



   Die vom Konverter erzeugten mechanischen Wellen werden durch sorgfältige Abstimmung der Materialien und Formen von Konverter, Booster und Sonotrode möglichst verlustarm übertragen, dadurch dass diese Teile möglichst in Resonanz schwingen und stehende Wellen (mit stationären Knotenpunkten) entstehen. The mechanical waves generated by the converter are transmitted loss as possible by careful matching of the materials and shapes of the converter, booster and horn, characterized in that these parts as possible resonance swinging and standing waves are formed (with stationary nodes). 



   Die Schweissparameter sind insbesondere die Frequenz der erzeugten Ultraschallwellen, die Amplitude, mit der die Arbeitsfläche 1 der Sonotrode bzw. die zu verschweissende Fläche 3 des von der Sonotrode angeregten Teiles A schwingt, die vom System aufgenommene Leistung, der Schweissdruck P und die Schweisszeit. The welding parameters are in particular the frequency of the ultrasonic waves generated, the amplitude with which the working area 1 and the swinging of the sonotrode to be welded area 3 of the excited by the sonotrode part A, the current drawn by system performance, the welding pressure P and the welding time. 



   Frequenz und maximale Leistung des Ultraschalles sind üblicherweise durch die Ultraschallanlage vorgegeben. Frequency and maximum power of the ultrasound are typically dictated by the ultrasound system.  Die Amplitude der schwingenden Arbeitsfläche 3 der Sonotrode 4 ist abhängig von der Amplitude des Konverters und der Wahl von Booster und Sonotrode. The amplitude of the vibrating work surface 3 of the sonotrode 4 is dependent on the amplitude of the converter and the choice of booster and horn.  Schweissdruck, Amplitude und aufgenommene Leistung sind im System miteinander verknüpft derart, dass für eine bestimmte Amplitude und eine bestimmte maximale Leistung der Schweissdruck begrenzt ist (je kleiner die Amplitude, desto höher der mögliche Schweissdruck), dass bei konstantem Schweissdruck und höherer Amplitude mehr Leistung aufgenommen wird und dass bei konstanter Amplitude und höherem Schweissdruck mehr Leistung aufgenommen wird. Welding pressure amplitude and power input are in the system linked to each other such that for a given amplitude and a given maximum power of the welding pressure is limited (the smaller the amplitude the higher the possible welding pressure) that was added more power with constant welding pressure and higher amplitude is added and that more power at a constant amplitude and a higher welding pressure. 



   Da es sich bei der erfindungsgemässen Verschweissung von lackierten Holzteilen meist um so genannte Fernfeldverschweissungen (Verschweissung von Flächen, die von der Arbeitsfläche der Sonotrode mehr als ca. 1 cm entfernt sind) handelt, ist das Schweissen mit relativ grossen Amplituden empfehlenswert. Since there are usually so-called Fernfeldverschweissungen (welding of surfaces that are more than about 1 cm away from the working surface of the horn) is in the inventive welding of painted wooden parts, welding is recommended with relatively large amplitudes. 



   Die für eine bestimmte Schweissung notwendige Schweissenergie wird unter anderem bestimmt durch die Art des zu verschweissenden Lackes und die Geometrie der zu verschweissenden Teile (Energieverluste im Teilmaterial). The necessary for a particular weld welding energy is inter alia determined by the type of paint to be welded and the geometry of the parts to be welded (energy losses in the part material).  Bei einer Schweissleistung, die vornehmlich durch das System gegeben ist, wird die Schweissenergie über die Schweisszeit kontrolliert. In a welding power, which is mainly given by the system, the welding power is controlled by the welding time. 



   Theoretisch wäre eine optimal Energie-effiziente Verschweissung zu erwarten, wenn der erste zu verschweissende Teil A mit der Sonotrode mechanisch vollständig gekoppelt wäre, mit dieser in Resonanz schwingen würde und derart ausgestaltet wäre (Anordnung von Knotenpunkten in diesem Teil), dass seine zu verschweissende Oberfläche mit einer für die Verschweissung geeigneten Amplitude schwingen würde. Theoretically, an ideal energy-efficient welding would be expected if the would be first completely mechanically coupled to be welded part A with the sonotrode, would oscillate with this in resonance and (of nodes arrangement in this part) would be designed such that its to be welded surface would oscillate with a suitable amplitude for welding.  Ferner sollten die beiden zu verschweissenden Oberflächen möglichst wenig mechanisch gekoppelt sein, damit die Wellen sich möglichst wenig in den zweiten Teil B und in den Amboss 5 fortpflanzen. Furthermore, the two should be a little mechanically coupled surfaces to be welded as possible so that the waves propagate as little as possible in the second part B and into the anvil. 5  Sobald der Lack zwischen den beiden zu verbindenden Oberflächen weich wird, entfällt die mechanische Koppelung zwischen den zu verbindenden Teilen A und B. Once the paint is softened between the two surfaces to be joined, eliminating the mechanical coupling between the parts to be joined A and B. 



   Ultraschall-Schweissversuche, durchgeführt mit einer Anordnung gemäss Fig. 1, zeigen, dass trotz gleichen Druckverhältnissen an den Berührungsflächen zwischen Sonotrode und lackiertem Holz bzw. zwischen Amboss und lackiertem Holz wie an den zu verbindenden Oberflächen zwischen den zu verbindenden Oberflächen eine gute Schweissverbindung entsteht, während an den anderen Berührungsflächen (mit Sonotrode bzw. Amboss) keine Veränderung der lackierten Oberfläche zu verzeichnen ist, diese nach der Schweissung also auch nicht an der Sonotrode bzw. am Amboss haftet. Ultrasonic welding tests, carried out with an arrangement according to Fig. 1, show that despite identical pressure conditions at the contact surfaces between the sonotrode and painted wood, and between anvil and painted wood a good welding connection is formed as the joining surfaces between the surfaces to be joined, while the other contact surfaces (with horn and anvil) no change in the painted surface can be observed, this therefore is not liable for the welding on the horn and the anvil.  Das heisst mit anderen Worten, die Koppelung zwischen Sonotrode und erstem zu verschweissendem Teil ist genügend gross, diejenige zwischen den zu verbindenden Oberflächen genügend klein. In other words, the coupling between the sonotrode and the first to verschweissendem part is sufficiently large, that between the surfaces to be bonded sufficiently small.  Dies gilt insbesondere bei der Verwendung von sehr glatten Sonotroden- und Amboss-Flächen. This is especially true when using very smooth sonotrode and anvil surfaces.

    Sind diese rau oder uneben, entstehen in Lackschichten, die bei der Verschweissung auf diesen Flächen aufliegen, entsprechende Abdrücke. These are rough or uneven, created in paint layers, which lie in the welding on these surfaces, appropriate marks. 



   Für jede spezifische Anwendungen müssen die Schweissparameter experimentell bestimmt werden. the welding parameters must be determined experimentally for each specific application. 



   Die beiden Fig. 2 und 3 zeigen Versuchsresultate zu Verschweissungen (Anordnung gemäss Fig. 1) von je zwei Fichtenholzteilen (Fig. 2) und je zwei Buchenholzteilen (Fig. 3), die vorgängig mit einem Acryllack beschichtet wurden. The two FIGS. 2 and 3 show experimental results for welds (arrangement according to FIG. 1) of two spruce wood parts (Fig. 2) and two Buchholz parts (Fig. 3), which were previously coated with an acrylic lacquer.  Die verwendeten Lacke waren einerseits eine mit Wasser verdünnbare Deckfarbe auf Reinacrylbasis auf einer entsprechenden Grundierung (Sigmalith-Acryl-Satin des Lieferanten Ernit AG, Dietikon) und andererseits ein mit Kunstharzverdünner verdünnbarer Klarlack auf Acrylbasis (Amicryl-Klarlack des Lieferanten Trila Color, Zofingen). The coatings used were the one hand a water-dilutable top coat on pure acrylic base on a corresponding primer (Sigmalith Acrylic Satin the supplier Ernit AG, Dietikon) and on the other hand, a dilutable with Kunstharzverdünner clearcoat acrylic-based (Amicryl clearcoat supplier's Trila Color, Zofingen).  Die Schichtdicken waren, wie für Lackierungen mit derartigen Lacken üblich, im Bereiche von ca. 0,1 mm. The layer thicknesses were as usual for coatings with such coatings, mm in the range of approximately 0.1.  Zur Durchführung der Versuche wurde eine Ultraschallschweissanlage der Firma Branson (Typ 921) verwendet. To perform the experiments, an ultrasonic welding system made by Branson was used (Type 921).  Verschweisst wurden ebene, parallel zur Sonotroden-Arbeitsfläche gerichtete Flächen von je ca. 400 mm<2>. plane directed parallel to the sonotrode worktop surfaces were welded each about 400 mm <2>.

    Die Schweissparameter waren dabei: Frequenz 20 kHz; The welding parameters were: frequency 20 kHz;  maximale Leistung 2000 W; maximum power 2000 W;  Amplitude (an der Arbeitsfläche der Sonotrode): ca. 60 mu m; Amplitude (at the working surface of the sonotrode): about 60 mu m;  Schweisszeiten zwischen 0,2 und 2 Sekunden; Welding time between 0.2 and 2 seconds;  Haltezeit ca. 5 sec und Schweisskraft (Kraft zum Zusammenpressen der Teile) zwischen 200 und 800 N. Hold time about 5 seconds and welding force (force for pressing the parts together) between 200 and 800 N. 



   Die Figuren zeigen die Abhängigkeit einer für die Zerstörung der erzeugten Verbindungen notwendigen Spannungen (in N/mm<2>) in Abhängigkeit der Schweisszeit und der Schweisskraft. The figures show the dependence of a necessary for the destruction of compounds produced voltages (in N / mm <2>) as a function of the welding time and the welding force.  Die Messwerte weisen eine hohe Streuung auf dadurch, dass die hergestellten und untersuchten Verbindungen teils Hirnholz mit Hirnholz, teils Seitenholz mit Seitenholz und teils Hirnholz mit Seitenholz verbanden. The measured values ​​show a high scattering on the fact that the compounds prepared and investigated partly associated with brain wood-grain, partly side wood with wood side and partly cross-cut wood with side wood. 



   Fig. 4 bis 6 zeigen nun noch mögliche Verschweissungen, bei denen die zu verschweissenden Oberflächen nicht parallel zur Sonotroden-Arbeitsfläche 1 und zur Ambossoberfläche 2 verlaufen. Fig. 4 to 6 now show still possible weldings, in which the surfaces to be welded do not run parallel to the sonotrode work surface 1 and surface 2, anvil.  Die Lackschichten auf den zu verbindenden Teilen sind nicht dargestellt, erstrecken sich aber gemäss erfindungsgemässem Verfahren mindestens im Bereiche der durch die Ultraschallschweissung zu verbindenden Oberflächen der Teile A und B. Gleiche Teile sind mit gleichen Bezugsnummern bezeichnet wie in der Fig. 1. The coating layers on the parts to be connected are not shown, but in accordance with process of the invention extending at least in regions by the ultrasonic welding joining surfaces of the parts A and B. The same parts are designated with the same reference numbers as in FIG. 1. 



   Fig. 4 stellt eine zu erstellende, schief zur Sonotroden-Arbeitsfläche 1 ausgerichtete Schweissverbindung 6 dar, die mit dem erfindungsgemässen Verfahren ebenfalls hergestellt werden kann, wobei die Sonotroden-Arbeitsfläche 1 vorteilhafterweise, wie dargestellt, etwa die Grösse der Projektion der Schweissverbindung aufweist. Fig. 4 shows a to be created, obliquely to the sonotrode work surface 1 aligned welded joint 6 group, which may also be produced with the inventive method, wherein the sonotrode work surface advantageously 1, as shown, has approximately the size of the projection of the welded joint.  Für derartige Anwendungen sind seitliche Haltemittel (Pfeile S) besonders wichtig. For such applications, lateral support means (arrows S) are especially important. 



   Fig. 4 stellt eine Anwendung dar, in der die Funktion von seitlichen Haltemitteln mindestens teilweise von der Form der Schweissverbindung 6 übernommen werden. Fig. 4 illustrates an application in which the function can be taken over by the side holding means at least partly from the shape of the weld joint 6.  Es handelt sich um eine zu erstellende, aus verschieden ausgerichteten Schweissflächen zusammengesetzte Schweissverbindung, wie sie in der Holztechnik vielfach angewandt wird. It is a to be created, composed of differently orientated surfaces welding weld joint, as it is applied often in the wood technology.  Auch eine derartige Schweissverbindung kann mit dem erfindungsgemässen Verfahren erstellt werden, wobei wiederum die Sonotroden-Arbeitsfläche 1, wie dargestellt, vorteilhafterweise etwa die Grösse der Projektion der Schweissverbindung aufweist. Also, such welding connection can be created using the inventive method, again the sonotrode work surface 1, as shown advantageously about which the size of the projection of the welded joint. 



   Fig. 6 zeigt schliesslich noch eine zu erstellende Schweissverbindung 6, die senkrecht zur Sonotroden-Arbeitsfläche 1 und zur Ambossoberfläche 2 verläuft. Fig. 6 finally shows a weld joint to be created 6, perpendicular to the sonotrode work surface 1 and surface 2, anvil.  Auch eine derartige Schweissverbindung kann mit dem erfindungsge mässen Verfahren ausgeführt werden. Also, such a welded joint can be carried out with the erfindungsge MAESSEN method.  In diesem Falle übernehmen die seitlichen Haltemittel (Pfeile S) einen Teil der Funktion des Schweissdruckes P. Die Sonotroden-Arbeitsfläche 1 ist für diese Anwendung vorteilhafterweise schmal und regt, wie in den anderen beschriebenen Anwendungen, auch hier nur den einen (A) der beiden zu verbindenden Teile an. In this case, the lateral support means (arrows S) take over a part of the function of the welding pressure P. The sonotrode work surface 1 is advantageously used for this application narrow and agitated, as in the other applications described here as well, only the one (A) of the two to be connected to parts. 



   Es ist auch möglich, Ambossflächen zu benützen, die nicht parallel zur Sonotroden-Arbeitsfläche verlaufen und/oder nicht ebene Sonotroden-Arbeitsflächen oder Ambossoberflächen. It is also possible to use anvil surfaces, which run parallel to the non-Sonotrodes work surface and / or non-planar Sonotrodes work surfaces or anvil surfaces. 

Claims (10)

1. Verfahren zum Zusammenfügen von Teilen (A, B) aus Holz oder holzähnlichem Material, dadurch gekennzeichnet, dass auf mindestens einem der zusammenzufügenden Teile (A, B) mindestens im Bereiche der zusammenzufügenden Oberfläche ein Schutz- und/oder Farblack (L) aufgebracht wird, welcher Lack einen thermoplastischen Bestandteil aufweist, und dass dann die zusammenzufügenden Oberflächen zusammengebracht und durch mechanische Anregung mittels der dazwischenliegenden Lackschicht oder Lackschichten miteinander verbunden werden. 1. A method for assembly of parts (A, B) of wood or wood-like material, characterized in that applied at least in the area of ​​mating surface of a protective and / or colored coating (L) on at least one of the parts to be joined (A, B) is, which paint comprises a thermoplastic component and that then brought together the mating surfaces and are connected to each other by mechanical excitation by means of the intermediate layer of lacquer or varnish layers.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die mechanische Anregung eine Anregung mit Ultraschallwellen ist. 2. The method according to claim 1, characterized in that the mechanical excitation is an excitation with ultrasonic waves.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die zusammenzufügenden Oberflächen der Teile (A, B) während der Verbindung durch mechanische Anregung gegeneinander gepresst werden. 3. The method of claim 1 or 2, characterized in that the mating surfaces of the parts (A, B) are pressed during the connection by mechanical excitation against each other.
4. 4th
Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass die Teile (A, B) nach Abbruch der mechanischen Anregung weiter während einer Haltezeit zusammengepresst werden. A method according to claim 3, characterized in that the parts (A, B) are pressed together after discontinuation of mechanical excitation during a further holding time.
5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der verwendete Lack mit Wasser oder einem Lösungsmittel verdünnbar ist. 5. The method according to any one of claims 1 to 4, characterized in that the paint used with water or a solvent can be thinned.
6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Lack eine Acrylbasis besitzt. 6. The method according to any one of claims 1 to 5, characterized in that the lacquer has an acrylic base.
7. 7th
Verfahren nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, dass die zu verbindenden Teile zwischen einer im Wesentlichen ebenen Sonotroden-Arbeitsfläche (1) und einer Ambossfläche (2) eingespannt werden, dass die zusammenzufügenden Oberflächen parallel und/oder schief zur Sonotroden-Arbeitsfläche (1) angeordnet werden und dass die Grösse der Sonotroden-Arbeitsfläche im Wesentlichen gleich gross gewählt wird wie die Projektion der zusammenzufügenden Flächen. Method according to one of claims 2 to 6, characterized in that the be clamped parts to be connected between a substantially planar sonotrode work surface (1) and an anvil surface (2) that the mating surfaces obliquely in parallel and / or sonotrode work surface be disposed (1) and that the size of the horn working surface is substantially the same size is selected as the projection of the faces to be assembled.
8. 8th.
Verfahren nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, dass die zu verbindenden Teile zwischen einer im Wesentlichen ebenen Sonotroden-Arbeitsfläche (1) und einer Ambossfläche (2) eingespannt werden, dass die zusammenzufügenden Flächen senkrecht zur Sonotroden-Arbeitsfläche angeordnet werden und dass die Sonotroden-Arbeitsfläche auf dem einen (A) der zu verbindenden Teile (A, B) unmittelbar neben der zu erstellenden Verbindung angeordnet wird. Worktop sonotrodes according to any one of claims 2 to 6, characterized in that the be clamped parts to be connected between a substantially planar sonotrode work surface (1) and an anvil surface (2) that the mating surfaces perpendicular to the arranged method and that the sonotrode work surface on said one (a) is arranged to be connected to parts (a, B) directly adjacent to the connection to be created.
9. Verfahren nach einem der Ansprüche 2 bis 8, dadurch gekennzeichnet, dass die Anregung mit Ultraschallwellen einer Frequenz von 20 bis 40 kHz durchgeführt wird. 9. The method according to any one of claims 2 to 8, characterized in that the excitation is carried out with ultrasonic waves of a frequency of 20 to 40 kHz.
10. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die mechanische Anregung aus einer Reibung der zu verbindenden Oberflächen gegeneinander besteht. 10. The method according to claim 1, characterized in that the mechanical excitation of a friction of the surfaces to be joined is made up to today.
CH02102/94A 1994-07-01 1994-07-01 Method for assembly of parts made of wood or wood-like materials. CH692091A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH02102/94A CH692091A5 (en) 1994-07-01 1994-07-01 Method for assembly of parts made of wood or wood-like materials.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH02102/94A CH692091A5 (en) 1994-07-01 1994-07-01 Method for assembly of parts made of wood or wood-like materials.
AU29786/95A AU2978695A (en) 1994-07-01 1995-06-29 Method of joining together parts consisting at least partly of wood or wood-like materials
PCT/EP1995/002527 WO1996001377A1 (en) 1994-07-01 1995-06-29 Method of joining together parts consisting at least partly of wood or wood-like materials

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CH692091A5 true CH692091A5 (en) 2002-01-31

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EP1614525A1 (en) * 2004-07-07 2006-01-11 Woodwelding AG Method for joining two objects and corresponding joining element
AT456991T (en) * 2006-12-12 2010-02-15 Fentech Ag Method for connecting wooden parts
ITPN20090022A1 (en) * 2009-03-24 2010-09-25 Re Andrea Da Edging of panels used in the furniture industry without visible injunction line.
CH703425A1 (en) 2010-07-05 2012-01-13 Woodwelding Ag Method and apparatus for securing an essentially flat object on an object surface of a porous or fibrous material.
CN103358543A (en) * 2013-07-25 2013-10-23 东北林业大学 Ultrasonic welding method for wood-plastic composite
US10406757B2 (en) 2014-10-09 2019-09-10 Woodwelding Ag Method of anchoring a first object in a second object
JP2018522765A (en) 2015-07-29 2018-08-16 ウッドウェルディング・アクチェンゲゼルシャフト Method of joining a device to an object using ultrasonic vibration energy and equipment and equipment suitable for this method

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