CN1863637A - Compensation plates and compliant members for laser welding a non-uniformly thick work piece, e.g.inkjet printhead with non-uniformly thick lid - Google Patents

Compensation plates and compliant members for laser welding a non-uniformly thick work piece, e.g.inkjet printhead with non-uniformly thick lid Download PDF

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Publication number
CN1863637A
CN1863637A CNA2004800025696A CN200480002569A CN1863637A CN 1863637 A CN1863637 A CN 1863637A CN A2004800025696 A CNA2004800025696 A CN A2004800025696A CN 200480002569 A CN200480002569 A CN 200480002569A CN 1863637 A CN1863637 A CN 1863637A
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CN
China
Prior art keywords
workpiece
laser
compensating plate
flexible member
weld interface
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CNA2004800025696A
Other languages
Chinese (zh)
Inventor
杰弗里·J·巴查南
詹姆斯·P·德拉蒙德
关健明
加内什·V·帕塔克
珍妮·M·S·辛格
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Lexmark International Inc
Original Assignee
Lexmark International Inc
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Filing date
Publication date
Application filed by Lexmark International Inc filed Critical Lexmark International Inc
Publication of CN1863637A publication Critical patent/CN1863637A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/17559—Cartridge manufacturing
    • 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
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
    • 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
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B23K26/244—Overlap seam welding
    • 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
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C66/50—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
    • 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
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/735—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the extensive physical properties of the parts to be joined
    • B29C66/7352—Thickness, e.g. very thin
    • B29C66/73521—Thickness, e.g. very thin of different thickness, i.e. the thickness of one of the parts to be joined being different from the thickness of the other part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8126—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/81266—Optical properties, e.g. transparency, reflectivity
    • B29C66/81267—Transparent to electromagnetic radiation, e.g. to visible light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81425—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being stepped, e.g. comprising a shoulder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81457—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a block or layer of deformable material, e.g. sponge, foam, rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
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    • 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
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    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29C65/16—Laser beams
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1687—Laser beams making use of light guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—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
    • B29C66/731—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 intensive physical properties of the material of the parts to be joined
    • B29C66/7316—Surface properties
    • B29C66/73161—Roughness or rugosity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—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
    • B29C66/73921—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 characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0025—Opaque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0026—Transparent
    • B29K2995/0027—Transparent for light outside the visible spectrum
    • 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
    • B29L2031/767—Printing equipment or accessories therefor

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)

Abstract

In a system for laser welding upper and lower work pieces (12, 18) along a weld interface, the upper work piece (12) being transparent to laser light and having a non-uniformly thick dimension, compensation plates (10) and compliant members (20) are taught that mate or otherwise contact the upper work piece (12) such that a combined thickness of the upper work piece (12) and the compensation plate (10) or compliant member (20) is substantially uniform in a region at least above the weld interface. In this manner, substantially consistent amounts of laser light reach the weld interface. The upper work piece (12) may include positive projections, negative voids, contoured profiles, surface imperfections or other that cause the non-uniformity. In one embodiment, the compensation plate (10) is fashioned together with a compliant member (20). In another embodiment, the upper and lower work pieces (12, 18) comprise inkjet printhead lids and bodies, respectively.

Description

Compensating plate and flexible member that the non-equal thickness workpiece of laser weld for example has the ink jet-print head of non-equal thick lid to use
Invention field
The present invention relates to laser weld first and second workpiece.Especially, when the present invention relates to when workpiece one of them cross section or size, form basically weld seam uniformly along the weld interface between the workpiece with non-uniform thickness.More particularly, a kind of compensating plate and/or flexible member cooperate with the workpiece of non-uniform thickness during laser weld or contact the workpiece of non-uniform thickness with method for distinguishing, so that prevent usually by caused the having a strong impact on of workpiece of welding non-uniform thickness.First and second workpiece can comprise the lid and the main body of ink jet-print head.
Background of invention
Laser welding technology is well-known.Generally, referring to Figure 1A, when upper work piece 100 first and second included workpiece when a weld interface 180 is placed on the lower work piece 120 are welded to each other by a laser radiation beam 140.As is known, laser beam 140 passes the upper work piece that can see through laser, and laser beam can be absorbed the lower work piece absorption of laser herein.Along with laser beam irradiation, the weld interface heating, and the lower surface of upper work piece and the upper surface of lower work piece are melted.When cooling, two workpiece are melted in together.Light path between lasing light emitter (not shown) and workpiece to be welded comprises the lens 160 or other optical element that are used for adequate focusing, as minute surface, and fiber optic strands, Scan Architecture etc.A clamping device (not shown) provides the compressive engagement of each workpiece usually, so that maintain relative positioning and good surface contact at weld period.
Arrive under the situation at weld interface place at the laser that hinders q.s when upper work piece, produce process and poor welding (welding is not enough).Absorbing under the situation of too many energy when upper work piece, upper work piece is usually overheated and/or make the quality of materials variation, and described quality of materials variation may cause aesthetic problem and welding unsatisfactory.There are many parameters that the absorption and the transmissison characteristic of material are exerted an influence, above-mentioned parameter includes but not limited to, the composition of the temperature of the incidence angle of optical maser wavelength, laser beam, the surface roughness of workpiece, workpiece, the thickness/size of workpiece, workpiece, and comprise under the plastics situation at workpiece, various additives are as fire retardant, plasticizer, filler and decolorizer.
Also have, when material property and laser activity in a fixed system fixedly the time, laser passes the light transmittance of workpiece and obeys well-known Beer-Lambert law, specifically: I/Io=e (-sx)Io is the intensity of light source that is incident on the workpiece herein, and I is that light passes through workpiece intensity afterwards, and x is a thickness of workpiece, and s is total extinction coefficient, and above-mentioned total extinction coefficient is the workpiece light scattering coefficient workpiece absorption coefficient of light.Therefore, the thickness of workpiece (variable x) constitutes the significant variable of light transmittance.
As seeing in Figure 1A, top workpiece 100 comprises that a kind of generally is the material of uniform thickness.Therefore, laser regional A will with area B or any other zone of workpiece in the speed that equates pass workpiece, will produce along weld interface so generally be uniform weld seam.
Yet, referring to Figure 1B, upper work piece 200 does not comprise the structure of uniform thickness sometimes, and the laser light transmittance is for example in zone 220, can not compare suitably between 222 and 224, cause simultaneously in the weld seam at weld interface 180 places may thickness and/or intensity non-homogeneous.Even can cause the structural integrity that damages.
In order to overcome this problem, in special-shaped welding under the scan laser situation, this solution be included in mobile more slowly laser in the thicker zone 220 or in thin zone 224 mobile quickly laser, perhaps in thick zone 220, increase laser power or in thin zone 224, reduce laser power under the situation of welding at the same time.Yet these two kinds of methods all lack practicality.For example, the laser of scanning easily produces the inertia effect in acceleration and moderating process, and the laser controller that the laser power of change need be extra, and complexity and expense are all increased.
Therefore, need a kind of laser welding technology, even so that workpiece to be welded one of them when comprising the size of a non-uniform thickness also with economic and two workpiece of laser weld effectively.
About inkjet technology, also be more well-known.Generally, image is to produce by just spraying ink droplet from ink jet-print head constantly at that, therefore impacts a print media such as a piece of paper in desirable position.Printhead is by the supporting of activity print tray in the ink-jet printer of a device, and at this moment produce according to the instruction of microprocessor or other controller movable and spray ink droplet with respect to advancing print media.The time of ejection of ink drops is corresponding with the pattern of image pixel to be printed.Except printer, comprise facsimile machine, monomer complete machine, copying machines and drawing equipment etc. comprising the similar device of ink-jet technology, more than only give some instances.
Conventional ink jet-print head comprises the supply that utilizes a part or remote colour or monochromatic ink, a heater chip, a nozzle or a porous plate that is fixed on the heater plates, an I/O connector such as tapped automatic welding circuit are so that be electrically connected to heater chip on the printer during use.Heater chip itself generally includes a plurality of thin film resistors or heater, above-mentioned thin film resistor or heater by deposit, shelter with etching technique and on a kind of substrate such as silicon, make.
In order to print or to spray single melted ink, each heater is added small amount of current individually, so that the ink of Fast Heating small size.This evaporates ink in a local ink hydroecium (between heater and nozzle plate), and sprays or projection towards the print media direction by nozzle plate.
During making printhead, printhead body is equipped with a back pressure device as a foam insert, and saturated with monochrome or color inks.Lid is welded on the main body by ultrasonic vibration.Yet this cracks in heater chip sometimes, adding or entrained air bubbles and impair whole printhead integrity in ink.
Further, when the higher resolution ratio of needs with when continuing to increase print speed printing speed, heater chip usually is built into has more complicated and more intensive heater configuration, makes the raising of print head manufacturing cost like this.Therefore,, need the control overall expenses, and no matter ever-increasing heater chip costs, and need reliably and as one man make printhead and do not cause and more have the heater chip of intermediate value to crack along with printhead development.
Summary of the invention
Above-mentioned and other problem have obtained solution by the equipment relevant with flexible member with above-mentioned compensating plate and method principle and technology being applied to two workpiece that laser weld has the workpiece of at least one non-uniform thickness.
In one embodiment, laser is along a weld interface welds upper and lower work piece.Top workpiece can see through laser and have a non-uniform thickness size.Following workpiece absorbs laser.Compensating plate or compliant members mate or with other method contact upper work piece, so that the combination thickness of top workpiece and compensating plate or flexible member, it is homogeneous thickness basically that a zone above weld interface is become.Like this, consistent basically amount of laser light arrives weld interface, and irrelevant with other heterogeneity of the light transmittance that passes upper work piece, produces homogeneous thickness and strong weld seam basically like this.In another embodiment, compensating plate is shaped with a flexible member.Top workpiece can comprise overhanging bossing, recessed space, and contoured profiles, blemish or other cause heteropical thing.
Also disclose and compensating plate and/or flexible member laser weld printhead lids and main body together, and contained the printer of printhead.
These and other embodiment of the present invention, the aspect, advantage and characteristics will state in the following description, and those skilled in the art are by the following describes and with reference to accompanying drawing or by practical application of the present invention, a part will become apparent with reference to of the present invention.Each method of the present invention, advantage and characteristics realize by instrument, operation and the especially combination in claims and reach.
Brief description
Figure 1A is laser-welded to schematic diagram on the lower work piece according to prior art with the upper work piece of uniform thickness;
Figure 1B is laser-welded to schematic diagram on the lower work piece according to prior art with the upper work piece of non-uniform thickness;
Fig. 2 is a kind of compensating plate according to technology of the present invention, is used for upper work piece with non-uniform thickness and is laser-welded to schematic diagram on the lower work piece;
Fig. 3 is a kind of flexible member according to technology of the present invention, is used for last surface member with non-uniform thickness and is laser-welded to down schematic diagram on the surface member;
Fig. 4 is a kind of compensating plate according to technology of the present invention, is used for last surface member with the ink jet-print head non-uniform thickness and is laser-welded to perspective view on the inkjet printing subfacies member;
Fig. 5 is a kind of compensating plate with flexible member according to technology of the present invention, is used for upper work piece with the non-uniform thickness of ink jet-print head and is laser-welded to perspective view on the ink jet-print head lower work piece.
Fig. 6 is a kind of compensating plate according to technology of the present invention, is used for non-uniform thickness upper work piece with ink jet-print head and is laser-welded to perspective view on the printhead lower work piece;
Fig. 7 be according to technology of the present invention utilize compensating plate or flexible member one of them, welding has the perspective view of ink jet-print head of the lid of non-uniform thickness;
Fig. 8 be according to technology of the present invention utilize compensating plate or flexible member one of them, laser weld be used to pack into a kind of perspective view of ink-jet printer of ink jet-print head of the lid with non-uniform thickness; With
Fig. 9 be according to technology of the present invention with compensating plate or flexible member one of them, be laser-welded to the exploded view of the ink jet-print head of the lid on the printhead body with non-uniform thickness.
Preferred embodiment describes in detail
In the DETAILED DESCRIPTION OF THE PREFERRED, describe with reference to accompanying drawing below, described accompanying drawing constitutes a part of the present invention, wherein is used as to illustrate the specific embodiment that some the present invention can practical operation is shown.These embodiment very at length describe, so that make the those skilled in the art can practical application the present invention, should be appreciated that other embodiment can utilize, and without departing from the present invention, can handle or other change.Therefore, following detailed description is not to adopt restrictive, sense, and scope of the present invention is only limited by claims and equivalent thereof.
According to the present invention, below we illustrate a kind of compensating plate and/or a kind of flexible member, described compensating plate or flexible member are during laser weld first and second workpiece, although one of them comprises a kind of gauge heterogeneous workpiece to be welded, the poor weld thickness of prior art and/or the problem of intensity have also been eliminated basically.
In Fig. 2, the workpiece to be welded 12 above has the cross section of a thickness heterogeneous between upper surface 14 and lower surface 16, and above-mentioned top workpiece 12 is placed on the following workpiece 18.The upper surface 22 of lower work piece forms 24, two workpiece of a weld interface with the lower surface of upper work piece and will engage along above-mentioned weld interface 24.
Compensating plate 10 cooperates or contacts upper work piece with method for distinguishing, so the combination thickness d1 of compensating plate and upper work piece becomes from homogeneous thickness basically between the upper surface 26 of the lower surface 16 of upper work piece and compensating plate.Like this, when with two workpiece of laser beam 30 laser weld, laser is uniform from the distance that the upper surface 26 of compensating plate propagates into weld interface 24 basically, thereby being that consistent amount of laser light is transported on the weld interface basically, and to produce a kind of be the weld seam of uniform thickness basically, and it is uniform weld strength basically that described weld seam has.
In addition, the result is that laser beam 30 becomes from left side area L to the inswept workpiece of right side region R, no longer needs the upper work piece that the acceleration laser beam compensates other non-uniform thickness, and has avoided the inertia effect and implemented precision sweep problem regularly.The result, welding is a kind of welding simultaneously, laser power does not need nonshared control unit the relatively thinner zone 34 of upper work piece is passed in the laser beam guiding of one low laser power, and the thicker zone of upper work piece 36 is passed in the guiding of the laser beam of high laser power.
As shown, the two respectively has complementary shape the lower surface 32 of compensating plate and the upper surface of upper work piece 14, and they form a bonding part 44 together.Those skilled in the art should be appreciated that there is little clearance space in the result in the bonding part, and they may be because surperficial imperfect the causing of compensating plate and/or upper work piece, so laser beam can reflect on the contrary, reflects, bending or other situation.Therefore, the present invention also imagines a kind of basically without any the bonding part 44 of clearance space.In some high precision applications, the present invention imagines with polishing or other method provides chemistry or other to handle to the lower surface 32 of compensating plate and/or the upper surface 14 of upper work piece, so that eliminate or even the slightest clearance space.Further, the present invention imagination adds filler material between the upper surface of the bottom of compensating plate and upper work piece, so that the filling clearance space.
About forming, in order to prevent 44 place's refractions of optical beam or other optical anomaly basically in the bonding part, the present invention further imagines compensating plate and upper work piece can have substantially the same optical property, as refraction index and light transmission, chemical composition and material property.In one embodiment, upper work piece and compensating plate comprise that plastics form, and upper work piece has the cinnamic composition of a polyphenylene oxide addition polymerization simultaneously, and compensating plate has a composition that substantially similar optical property is provided.
Can utilize a kind of clamping device, a kind of compressing member or other thing (not shown) are supplied with compressive engagement at weld period, shown in line of force F1 and F2 between each workpiece.When lower surface 38 for example when weld period rests on the platform, other unshowned power may be that F2 is opposite from following and perpendicular to the lower surface 38 and line of force F1 of lower work piece 18.
We have described lens 40 and have been used at weld period laser beam 30 being focused on, but those skilled in the art are to be appreciated that, we have simplified light path widely, and it can comprise other optical texture in addition, as minute surface, fiber optic strands, laser scanning device (such as, rotary many facets mirror), other lens or other thing.Preferably, laser beam originates from a lasing light emitter 42 as a laser diode.In one embodiment, lasing light emitter is a kind of aluminium arsenide gadolinium (AlGaAs) semiconductor laser of 810nm wavelength, and having laser power is about 50 watts.Other embodiment comprise, but be not limited to, the continuous wavelength laser instrument with similar power level of other type, as have wavelength be 940-990nm based on the semiconductor laser of indium arsenide yttrium (InGaAs) and have the aluminum phosphate gadolinium indium semiconductor laser that wavelength is 630-680nm, solid-state laser is as the yttrium-aluminium-garnet (Nd:YAG) of lamp pumping neodymium-doped with wavelength 1064nm and have yttrium-aluminium-garnet (Nd:YAG) or other thing that wavelength is the diode pumping neodymium-doped of 1064nm.
As desired, compensating plate and upper work piece comprise the transparent material of a kind of laser, and lower work piece comprises a kind of material that can absorb laser.Yet the light transmittance of these structures or light obscuration do not mean that 100% laser sees through or is blocked.Light transmittance and opaqueness only require to make enough luminous energy to see through compensating plate and upper work piece and are absorbed by lower work piece, so that form suitable laser weld.
Although being also to be understood that each workpiece all has depicts the weld interface that coextends basically as, one of them of workpiece or the two can have and extend to the outer part of another workpiece periphery.Therefore, compensating plate only need compensate the workpiece of non-uniform thickness in the to-be-welded region of being close to weld interface basically.Further, if one of them workpiece has gauge heterogeneous, described gauge heterogeneous can by with compensating plate contact or with other method cooperation become basically homogeneous thickness, then each workpiece can be used and construct different modes up and down and arrange a weld interface, as side by side, connected head-to-tail etc.
In Fig. 3, the compensating plate that flexible member 20 replaces among Fig. 2, upper work piece 12 heterogeneous is become is homogeneous thickness basically so that combine (thickness of combination is d2) with flexible member, as between the upper surface 46 of the lower surface 16 of top workpiece and soft member.In this embodiment, compressing member 48 be basically in the zone above the weld interface 24 it self and the upper surface of upper work piece between compress flexible member (F3 represents with the line of force).Material property on flexible member is decided, and the various different pieces of flexible member can be out of shape, as the outside archwise by dotted line 52 expressions.As compensating plate, flexible member is preferably made with the material that can see through laser.In one embodiment, flexible member comprises a kind of silicone elastomer.Some other embodiment can include, but not limited to polyurethane, styrene block copolymer, polyethylene or other material.
Although not shown, those skilled in the art should be appreciated that, a kind of laser welding system comprising lasing light emitter and light path, provides upper work piece and lower work piece are welded to each other.
In Fig. 4, first and second workpiece to be welded comprise an inkjet printhead lid 60 and an inkjet printhead body 62.Lid has the upper surface 64 of a non-uniform thickness, the upper surface 64 of described non-uniform thickness is caused by a plurality of overhanging bossings, above-mentioned a plurality of overhanging bossing is relative with a weld interface 82, get two and become bond structure 68a, the 68b form, use during boxlike carriage in special-purpose ink jet-print head joins special-purpose ink-jet printer to of above-mentioned one- tenth bond structure 68a, 68b.
During laser weld, has recessed space 70a, the compensating plate 78 of 70b is complementary shaped, so that respectively with overhanging bossing 68a, 68b cooperates and/or interlocking, the basal surface 81 that above-mentioned compensating plate 78 is positioned to it rests upper surface 64 not to be had on those parts of overhanging bossing, is uniform basically thereby the thickness (from covering 60 lower surface 63 upper surface 80 to compensating plate 78) of combination is become.As mentioned above, this uniform basically combination thickness itself just causes consistent basically amount of laser light to arrive weld interface, and this to cause along the weld seam of weld interface 82 (being formed by contacting between the upper surface 85 of lid 60 lower surface 63 and inkjet printhead body 62) be the size of uniform thickness basically on whole weld interface, and have uniform basically intensity.
In a preferred embodiment, lid comprises a kind of material that sees through laser, and main body comprises a kind of material that absorbs laser, and the above-mentioned material that sees through laser has the polyphenylene oxide of consisting of and adds polystyrene, and the above-mentioned material that absorbs laser also has the polyphenylene oxide of consisting of and adds polystyrene.The composition that provides and cover similar optical property preferably is provided compensating plate.
Compensating plate has length L, width W and height H equidimension, and these sizes can be with using different the change.As shown in Figure 4, length and width dimensions are substantially equal to cover 60 length and width, change the size of selecting and highly have with various parameters, and one of them relates to the laser light transmittance above-mentioned parameter.
Fig. 5 and Fig. 4 difference be, with overhanging bossing 68a, and the recessed space 70a that 68b cooperates, 70b also comprises flexible member 90a at its top, so that further strengthen and guarantee cooperating of bossing and space, and there is not clearance space in 90b.
Although being depicted as inkjet printhead lid 60 to have overhanging bossing and compensating plate 78 is depicted as, Fig. 4 and Fig. 5 have recessed space 70, but those skilled in the art should be appreciated that, lid can have the space and compensating plate has bossing, perhaps they the two can have bossing and space.
In Fig. 6, although it is even basically that the combination thickness of compensating plate and lid (d3+d4) keeps above weld interface 82, but compensating plate 78 is different with the foregoing description, because when lid and compensating plate interlocking or cooperation, and the top 71 of overhanging bossing and top 80 coplines of compensating plate.
As mentioned above, no matter be that lid or compensating plate can have recessed space, overhanging bossing or the two all has, and compensating plate can become the other style with a flexible member.
Because the present invention's workpiece to be welded can comprise printhead lids and main body, so in Fig. 7 and 8, we describe a kind of printhead and use other function aspects of their printer.Especially, referring to Fig. 7, printhead of the present invention generally illustrates with label 101.Printhead 101 has a shell 121, and described shell 121 is made of the lid 160 of a main body 161 and a non-uniform thickness, and 160 and compensating plates of this lid and/or flexible member laser weld are together.Its shell shape change is also depended on the peripheral unit of installing or printhead being housed.Shell portion within it has at least one compartment, is used to install original or can fill again ink feed spare and a kind of structure such as foam insert, spray and absorption part or other parts, so that in use keep suitable back pressure in the ink jet-print head.In one embodiment, inner compartment comprises 3 chambers, is used to adorn 3 kinds of ink feeds, especially dark green, peony and yellow ink.In another embodiment, compartment can be equipped with black ink, xerox ink and/or viridescent, dark red or yellow ink wherein more than one.Should be appreciated that fluid coupling part (not shown) can be that compartment is connected on the ink source of distant place.
The wherein part 191 of a kind of tapped automatic welding (TAB) circuit 201 is adhered on the surface 181 of shell, and another part 211 is adhered on another surface 221.As shown, two surfaces 181,221 are vertical mutually around an edge 231.
TAB circuit 201 has a plurality of I/O (I/O) connectors of making 241 thereon, is used for during use a heater chip 251 being electrically connected to peripheral unit, on printer, facsimile machine, duplicator, copying machines, draught machine, monomer complete machine etc.A plurality of electric conductors 261 are arranged on TAB circuit 201, so that I/O connector 241 is electrically connected and short circuit with the weld zone 281 of heater chip 251, and known various manufacturing technology is used to help this connection.Should be appreciated that,, wherein can utilize any number although show 241,8 electric conductors 261 of 8 I/O connectors and 8 weld zones 281.These numbers that be also to be understood that connector, conductor and weld zone can not wait mutually.
Heater chip 251 comprises at least one ink via 321, and described ink via 321 usefulness fluids are connected on the ink feed of enclosure.In the printhead manufacture process, heater chip 25 preferably is fixed on the shell with one of them of the well-known adhesive of this technology, epoxy resin etc.As shown, heater chip comprises 4 rows (row A-row D) heater.For simplicity, in this intensive figure, with round dot represent each row in heater.Should be appreciated that the heater of heater chip has preferably formed a series of thin layer, above-mentioned thin layer by growth, deposit, shelter, photoetching process and/or etching or other procedure of processing make.A unshowned nozzle plate with a plurality of nozzle bores is bonded on the heater chip, so that nozzle bore is aimed at heater.
Referring to Fig. 8, a kind of peripheral unit of the printhead 101 that is used to pack into generally illustrates with label 401, and above-mentioned peripheral unit illustrates with the ink-jet printer form.Printer 401 comprises a carriage 421, and described carriage 421 has a plurality of grooves 441 one or more printheads that are used to pack into.A blocking mechanism (not shown) is shaped specially, so that locking type cooperates with the overhanging bossing of the printhead lids of non-uniform thickness.As known in the art, make carriage 421 above print zone, move back and forth (by the output 591 of controller 571) by the motive power that is added on the driving belt 501 along an axle 481.The reciprocating motion of carriage 421 is to carry out with respect to a kind of print media such as a piece of paper, that is to say, in printer 401 along the route of paper from input disc 541, by print zone 461, advance to output panel 561.
In print zone, carriage 421 is reciprocating towards vibration-direction, and above-mentioned vibration-direction is generally perpendicular to the direction of advance of paper, as shown by arrows.At this moment according to printer microprocessor or other controller 571, the ink droplet (Fig. 7) in the printhead is released from heater chip 251.The timing of ink droplet discharging is corresponding with the pattern of pixels of the image of being printed.Often, these patterns are to be electrically connected to the device of controller (by the outside input) generation, and said apparatus is the peripheral unit of printer, as computer, and scanner, video camera, visual display, personal data assistants or other device.
In order to print or discharge single melted ink, each heater (each round dot during A row-D arranges among Fig. 7) adds small amount of current individually and comes Fast Heating small size ink.This makes ink evaporate in the local ink hydroecium, and passes that nozzle plate sprays to or by nozzle plate directive print media.
Control panel 581 with user's option interface 601 also can offer controller 571 with input 621, so that can implement extra printer capabilities and durability.
As described herein, term print head can also comprise piezo technology or other technology except thermal technology, and can comprise the head emitter construction shown in the emitter construction replacement of a kind of side.At last, because above-mentioned workpiece to be welded can comprise an inkjet printhead lid and main body, and because laser weld also produces oscillating movement basically on workpiece, so do not resemble ultrasonic bonding, make heating device sheet at printhead and seldom crack and seldom have air to be clipped in the printing ink.
Referring to Fig. 9, an aforesaid compensating plate of inkjet printhead lid 960 usefulness and/or a flexible member are laser-welded on the printhead body 962.Above-mentioned lid has one and goes up cap surface 914 and a following cap surface 916, and comprise a kind of lid of non-uniform thickness, represented as different height h1 and h2, wherein h1 representative from bottom cover surface 916 to the distance of overhanging bossing bottom 968, and the distance of h2 representative from the bottom cover surface to overhanging bossing top.Although not shown level identification device resemble the bossing, lid can comprise a recessed space 970.
Main body 962 has a main wall, and described main wall is formed by two width wall parts 932 and two length direction wall parts 934, and respectively has a wall thickness t, should be taken into account that simultaneously the thickness of each wall part does not need to be equal to each other.When following cap surface 916 rested on the upper main body surface 922, weld interface formed in the zone that both (lower cover surface and upper main body surfaces) are in contact with one another.This zone comprises the periphery of main wall.In this Fig. 9, lid has and can see through characteristic of laser, and main body has and can absorb characteristic of laser.In also having other structure, lid can absorb laser and main body can see through laser.
Above the explanation be provided for example seek peace the explanation various aspects of the present invention purpose.These explanations are not planned comprehensive or are limited the invention to disclosed precise form.Select the foregoing description that the best illustration of the principle of the invention and practical application thereof is provided, thereby make those skilled in the art can utilize the present invention in various embodiments, and be suitable for simultaneously in the concrete application of being implemented, carrying out various modifications.When they were set forth according to scope just, legal, that reasonably authorize, all such modifications and variation all are within the scope of the present invention, and be determined as appended claims.
Claims
(according to the modification of the 19th of treaty)
1. method for laser welding comprises:
With contiguous second workpiece of first workpiece location, above-mentioned first workpiece has thickness heterogeneous;
With contiguous first workpiece of compensating plate location, so that the combination thickness of first workpiece and compensating plate is uniform basically; With
First workpiece and second workpiece laser are welded together.
2. the method for claim 1, it is characterized in that, describedly the contiguous first member localization step of compensating plate is comprised also the lower surface of compensating plate is cooperated with the upper surface of first workpiece, and described lower surface and upper surface have the shape of complementation basically.
3. method for laser welding comprises:
One first workpiece is positioned on one second workpiece, so that form a weld interface, first workpiece has a thickness heterogeneous and a upper surface;
The lower surface of a compensating plate is positioned on the upper surface of first workpiece, so that first workpiece and compensating plate combination thickness are uniform basically above weld interface;
Apply a power to compensating plate; With
At the weld interface place first workpiece and second workpiece laser are welded together.
4. in accordance with the method for claim 3, it is characterized in that the step that described lower surface with compensating plate is positioned at the upper surface of first workpiece also comprises, with an overhanging bossing and a recessed space interlocking.
5. in accordance with the method for claim 3, it is characterized in that described lower surface and upper surface have substantially the same shape; The described step that compensating plate and lower surface are positioned at the upper surface of first workpiece also comprises, makes substantially the same form fit, so that form the joint in space very close to each other basically.
6. one kind is laser-welded to method on the inkjet printhead body with inkjet printhead lid, comprising:
To stretch out or recessed structures is arranged on the upper surface of the inkjet printhead lid that can see through laser, thereby produce a kind of cross section of inkjet printhead lid of non-uniform thickness;
The lower surface of inkjet printhead lid is positioned on the upper surface of inkjet printhead body, so that form a weld interface;
The lower surface of a compensating plate is positioned on the upper surface of inkjet printhead lid, so that the combination thickness of inkjet printhead lid and compensating plate is uniform basically; And
Shine weld interface with laser beam, so that inkjet printhead lid and inkjet printhead body laser weld are in the same place.
7. in a kind of system of first workpiece and second workpiece laser being welded together along a weld interface of being used for, first workpiece can see through laser, and has a shape relative with weld interface, its improvement comprises a kind of compensating plate, described compensating plate has a surface, this Surface Machining becomes complementary shape, so that in office, junction surface and above-mentioned form fit, therefore the combination thickness of first workpiece and compensating plate is uniform basically near weld interface.
8. equipment as claimed in claim 7 is characterized in that, described compensating plate can allow laser see through basically.
9. equipment as claimed in claim 7 is characterized in that, the optical property of described first workpiece and compensating plate is substantially the same.
10. equipment as claimed in claim 7 is characterized in that, the surface of described compensating plate also comprises a kind of flexible member that forms thereon.
11. be used for along weld interface a upper work piece and a lower work piece laser weld system together a kind of, upper work piece can see through laser, and has a shape relative with weld interface, improvement comprises a kind of compensating plate, described compensating plate has a surface, this surface complementarity formula is shaped, so that by at least one overhanging bossing and at least one recessed space interlocking are come and form fit, above-mentioned overhanging bossing and recessed the space surface of the shape of workpiece or compensating plate in the above respectively are shaped one on the two, so that the combination thickness of upper work piece and compensating plate is uniform basically above weld interface.
12. equipment as claimed in claim 11 is characterized in that, one of them of the female space and overhanging bossing also comprises a flexible member that is shaped thereon.
13. equipment as claimed in claim 11 is characterized in that, described additional plate can allow laser see through basically.
14. equipment as claimed in claim 11 is characterized in that, the optical property of described upper work piece and compensating plate is substantially the same.
15. an ink jet-print head comprises:
A lid, described lid can see through laser basically, have one and go up cap surface and a following cap surface, and last cap surface comprises one of them of an overhanging bossing and a recessed space; And
A main body, described main body do not see through laser basically, have a upper main body surface, and described upper main body surface is laser-welded on the lower cover surface at the weld interface place.
16. printhead as claimed in claim 15 is characterized in that, described weld interface consists essentially of the whole periphery of a main wall.

Claims (21)

1. method for laser welding comprises:
With contiguous second workpiece of first workpiece location, above-mentioned first workpiece has thickness heterogeneous;
With one of them contiguous first workpiece location of compensating plate and flexible member, so that the combination thickness of one of them of first workpiece and compensating plate and flexible member is uniform basically; With
First workpiece and second workpiece laser are welded together.
2. the method for claim 1, wherein one of them contiguous first member location with compensating plate and flexible member comprises that also the lower surface that makes compensating plate cooperates with the upper surface of first workpiece, and lower surface and upper surface have complementary basically shape.
3. the method for claim 1 wherein also comprises one of them contiguous first member location of compensating plate and flexible member flexible member is compressed between the pressed component and first workpiece.
4. an ink jet-print head forms with the described method of claim 1.
5. method for laser welding comprises:
One first workpiece is positioned on one second workpiece so that form a weld interface, and first workpiece has a thickness heterogeneous and a upper surface;
One of them lower surface of a compensating plate and a flexible member is positioned on the upper surface of first workpiece, so that one of them combination thickness of first workpiece and compensating plate and flexible member is uniform basically above weld interface;
Apply a power on one of them of compensating plate and flexible member; With
At the weld interface place first workpiece and second workpiece laser are welded together.
6. in accordance with the method for claim 5, wherein one of them lower surface of compensating plate and flexible member is positioned on the upper surface of first workpiece and also comprises an overhanging bossing and a recessed space interlocking.
7. in accordance with the method for claim 5, wherein: lower surface and upper surface have substantially the same shape; And one of them lower surface of compensating plate and flexible member is positioned at also comprises on the upper surface of first workpiece and make substantially the same form fit, so that form the joint in space very close to each other basically.
8. in accordance with the method for claim 5, wherein one of them lower surface of compensating plate and flexible member is positioned at compressed flexible member between the upper surface that also is included in a compressing member and first workpiece on the upper surface of first workpiece.
9. one kind is laser-welded to method on the inkjet printhead body with inkjet printhead lid, comprising:
To have stretch out or the inkjet printhead lid surface disposed thereon of the Tou Guoed laser of recessed structures on, thereby produce a kind of cross section of inkjet printhead lid of non-uniform thickness;
The lower surface of inkjet printhead lid is positioned on the upper surface of inkjet printhead body, so that form a weld interface;
One of them lower surface of a compensating plate and flexible member is positioned on the upper surface of inkjet printhead lid, so that one of them combination thickness of inkjet printhead lid and compensating plate and flexible member is uniform basically; And
Shine weld interface with laser beam, so that inkjet printhead lid and inkjet printhead body laser weld are in the same place.
10. in a kind of system of first workpiece and second workpiece laser being welded together along a weld interface of being used for, first workpiece can see through laser, and has a shape relative with weld interface, improvement comprises a kind of compensating plate, described compensating plate has a surface, this surface complementarity formula is shaped, so that in office, junction surface and form fit, therefore the combination thickness of first workpiece and compensating plate is uniform basically near weld interface.
11. equipment as claimed in claim 10, wherein compensating plate can allow laser see through basically.
12. equipment as claimed in claim 10, wherein the optical property of first workpiece and compensating plate is substantially the same.
13. equipment as claimed in claim 10, wherein the surface of compensating plate also comprises a kind of flexible member that forms thereon.
14. be used for along weld interface a upper work piece and a lower work piece laser weld system together a kind of, upper work piece can see through laser, and has a shape relative with weld interface, improvement comprises a kind of compensating plate, described compensating plate has a surface, this surface complementarity formula is shaped, so that by at least one overhanging bossing and at least one recessed space interlocking are come and form fit, above-mentioned overhanging bossing and recessed the space surface of the shape of workpiece or compensating plate in the above respectively are shaped one on the two, so that the combination thickness of upper work piece and compensating plate is uniform basically above weld interface.
15. equipment as claimed in claim 13, one of them of wherein recessed space and overhanging bossing also comprises a flexible member that is shaped thereon.
16. equipment as claimed in claim 13, wherein compensating plate can allow laser see through basically.
17. equipment as claimed in claim 13, wherein the optical property of upper work piece and compensating plate is substantially the same.
18. in a kind of system of first and second workpiece lasers being welded together along weld interface of being used for, first and second workpiece engage along the weld interface compression type, can see through laser with first workpiece, and has a shape relative with weld interface, improvement comprises a flexible member that can see through laser is configured as between compressing member and shape and cooperates, so that the contiguous weld interface of the combination thickness of first workpiece and flexible member is uniform basically.
19. equipment as claimed in claim 17, wherein flexible member with silicone elastomer, polyurethane, styrene block copolymer and poly one of them make.
20. an ink jet-print head comprises:
A lid, described lid can see through laser basically, have a upper cover surface and a lower cover surface, and last cap surface comprises one of them of an overhanging bossing and a recessed space; And
A main body, described main body do not see through laser basically, have a upper main body surface, and described upper main body surface is laser-welded on the lower cover surface at the weld interface place.
21. printhead as claimed in claim 19, wherein weld interface comprises the whole basically periphery of a main wall.
CNA2004800025696A 2004-04-13 2004-04-13 Compensation plates and compliant members for laser welding a non-uniformly thick work piece, e.g.inkjet printhead with non-uniformly thick lid Pending CN1863637A (en)

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PCT/US2004/011308 WO2005102588A1 (en) 2004-04-13 2004-04-13 Compensation plates and compliant members for laser welding a non-uniformly thick work piece to another

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CN1863637A true CN1863637A (en) 2006-11-15

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CN102753350A (en) * 2009-11-18 2012-10-24 佳能株式会社 Method for manufacturing liquid supply member and method for manufacturing liquid discharge head
CN104608374A (en) * 2013-11-01 2015-05-13 株式会社小糸制作所 Welding structure and welding apparatus

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DE102008036467A1 (en) 2008-08-05 2010-02-11 Fresenius Medical Care Deutschland Gmbh Method for producing a composite part by means of transmission laser welding
CN111702276B (en) * 2020-07-07 2023-07-14 深圳市微组半导体科技有限公司 Laser hot-pressing heating suction nozzle, device welding device and hot-pressing composite heating method

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US6486433B2 (en) * 2001-01-11 2002-11-26 Branson Ultrasonics Corporation Transparent pressure bladder
US6796636B2 (en) * 2002-12-17 2004-09-28 Lexmark International, Inc. Two shot molded inkjet printhead lid for laser welding

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Publication number Priority date Publication date Assignee Title
CN102753350A (en) * 2009-11-18 2012-10-24 佳能株式会社 Method for manufacturing liquid supply member and method for manufacturing liquid discharge head
CN104608374A (en) * 2013-11-01 2015-05-13 株式会社小糸制作所 Welding structure and welding apparatus
CN104608374B (en) * 2013-11-01 2018-03-13 株式会社小糸制作所 Cladding method and deposition apparatus

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