WO2005104692A2 - Vis sans fin de direction a assistance electronique - Google Patents

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Publication number
WO2005104692A2
WO2005104692A2 PCT/US2005/012713 US2005012713W WO2005104692A2 WO 2005104692 A2 WO2005104692 A2 WO 2005104692A2 US 2005012713 W US2005012713 W US 2005012713W WO 2005104692 A2 WO2005104692 A2 WO 2005104692A2
Authority
WO
WIPO (PCT)
Prior art keywords
boss
tube
core
metal
outer part
Prior art date
Application number
PCT/US2005/012713
Other languages
English (en)
Other versions
WO2005104692A3 (fr
Inventor
Jawk Meijer
Michael D. Oliveto
Jurgen Zinnikus
Original Assignee
Quadrant Epp 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 Quadrant Epp Ag filed Critical Quadrant Epp Ag
Priority to BRPI0509930-7A priority Critical patent/BRPI0509930A/pt
Priority to AU2005237465A priority patent/AU2005237465A1/en
Priority to US11/578,624 priority patent/US20070214642A1/en
Priority to CA002563062A priority patent/CA2563062A1/fr
Priority to JP2007508534A priority patent/JP2007532360A/ja
Priority to EP05735510A priority patent/EP1737591A4/fr
Publication of WO2005104692A2 publication Critical patent/WO2005104692A2/fr
Publication of WO2005104692A3 publication Critical patent/WO2005104692A3/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/28—Making other particular articles wheels or the like gear wheels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/18—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using tubular layers or sheathings
    • 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
    • B29C65/022—Particular heating or welding methods not otherwise provided for
    • B29C65/028—Particular heating or welding methods not otherwise provided for making use of inherent heat, i.e. the heat for the joining comes from the moulding process of one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0242—Heating, or preheating, e.g. drying
    • 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
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—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
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5227—Joining tubular articles for forming multi-tubular articles by longitudinally joining elementary tubular articles wall-to-wall (e.g. joining the wall of a first tubular article to the wall of a second tubular article) or for forming multilayer tubular articles
    • B29C66/52271—Joining tubular articles for forming multi-tubular articles by longitudinally joining elementary tubular articles wall-to-wall (e.g. joining the wall of a first tubular article to the wall of a second tubular article) or for forming multilayer tubular articles one tubular article being placed inside the other
    • B29C66/52272—Joining tubular articles for forming multi-tubular articles by longitudinally joining elementary tubular articles wall-to-wall (e.g. joining the wall of a first tubular article to the wall of a second tubular article) or for forming multilayer tubular articles one tubular article being placed inside the other concentrically, e.g. for forming multilayer tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91411—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the parts to be joined, e.g. the joining process taking the temperature of the parts to be joined into account
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91441—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being non-constant over time
    • B29C66/91443—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being non-constant over time following a temperature-time profile
    • B29C66/91445—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being non-constant over time following a temperature-time profile by steps
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0027—Cutting off
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0081—Shaping techniques involving a cutting or machining operation before shaping
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0011—Combinations of extrusion moulding with other shaping operations combined with compression moulding
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/44—Joining a heated non plastics element to a plastics element
    • B29C65/46—Joining a heated non plastics element to a plastics element heated by induction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
    • B29C66/02241—Cutting, e.g. by using waterjets, or sawing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • 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
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B29C66/7311—Thermal properties
    • B29C66/73117—Tg, i.e. glass transition temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
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    • B29C66/737—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 state of the material of the parts to be joined
    • B29C66/7377—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 state of the material of the parts to be joined amorphous, semi-crystalline or crystalline
    • B29C66/73771—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 state of the material of the parts to be joined amorphous, semi-crystalline or crystalline the to-be-joined area of at least one of the parts to be joined being amorphous
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    • 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
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    • B29C66/7377—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 state of the material of the parts to be joined amorphous, semi-crystalline or crystalline
    • B29C66/73773—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 state of the material of the parts to be joined amorphous, semi-crystalline or crystalline the to-be-joined area of at least one of the parts to be joined being semi-crystalline
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    • 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
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    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7394—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B29C66/91651—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux by controlling or regulating the heat generated by Joule heating or induction heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
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    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
    • B29C66/91931—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined
    • B29C66/91933—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined higher than said fusion temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/90—Measuring or controlling the joining process
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    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
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    • B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
    • B29C66/91941—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to Tg, i.e. the glass transition temperature, of the material of one of the parts to be joined
    • B29C66/91943—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to Tg, i.e. the glass transition temperature, of the material of one of the parts to be joined higher than said glass transition temperature
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    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/12—Thermoplastic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B29K2305/00—Use of metals, their alloys or their compounds, as reinforcement
    • 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
    • B29K2995/0037—Other properties
    • B29K2995/0039—Amorphous
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • 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
    • B29L2015/00—Gear wheels or similar articles with grooves or projections, e.g. control knobs
    • B29L2015/003—Gears
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49462—Gear making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49462—Gear making
    • Y10T29/49467—Gear shaping
    • Y10T29/49469—Worm gear

Definitions

  • the invention is related to a process for making plastic hybrid worm gears and gear blanks using gear rims of synthetic materials, especially thermoplastic materials .
  • EPS electronic power steering systems
  • worm/worm gear sets are used.
  • one of the components or the gear portion of that component is usually made of synthetic, thermoplastic material, preferably the worm gear.
  • Such a worm gear may consist of a cast nylon ring of PA6 or a PA6/PA 12 blend, which is pressed on or cast over a mostly metallic hub (metal boss) and then fused together by induction heating.
  • the nylon ring is only usable to a temperature up to about 80°C.
  • the product for example a worm gear
  • Another type of worm gear is produced by injection molding a filled or non-filled synthetic material, generally based on polyamide (PA) 6, 6.6, 4.6, 12, PPA, or blends thereof; and also polyphenylenesulfide (PPS) ; polyamide-imide (PAI) ; and polyetheretherketone (PEEK) ; is directly fixed (by over-mold) to a hub, usually one having a metallic structure. In both cases one or more heat treatments are required to reduce the stresses in the products and/or to obtain required dimensional stability of the end product.
  • PA polyamide
  • PPS polyphenylenesulfide
  • PAI polyamide-imide
  • PEEK polyetheretherketone
  • JP-A- 2002/172703 for a "resin molding having metal boss and its manufacturing method
  • JP-A-2002/079581 for a "manufacturing method for resin molded article having metal boss”
  • JP-A-2002/370290 for a "method for fixing metal boss to thermoplastic resin molding”
  • JP-A- 2003/118006 for a "resin molded article having metal boss and method manufacturing the same” .
  • DE-A-101 27 224 discloses the production of a worm gear by a molding process of a thermoplastic to a metal core. This process, however, includes all the disadvantages of the prior art. A similar disclosure is included in JP-A-2002/248649. It would be desirable to provide a process for the manufacture of worm gears which does not share the deficiencies of previously disclosed processes.
  • An object of the invention is to provide a production process for worm gear parts comprising fewer steps and/or having higher quality.
  • This and other objects are provided by a process in which tubes made by extrusion technology are employed.
  • the object of the invention is solved by a process for forming an article comprising a boss, preferably a metal or metal- containing boss, and a synthetic resin outer part (102), preferably a thermoplastic resin outer part, the outer part surrounding a periphery of the metal boss, this process comprising the steps of: (a) extruding, compression molding, or centrifugal processing of tubes, optionally followed by machining, to the required dimensions, (b) cutting off rings from the tubes in an appropriate length, and (c) fixing a ring produced by step (b) onto the boss.
  • the process leads to products with a lower internal stress level and better dimensional stability; higher wear resistance due to the higher molecular weights which can be used as compared to injection molding; and lower
  • an object of the invention is solved by a process for forming an article preferably comprising a metal boss or a metal- containing boss, and a synthetic resin outer part, preferably a thermoplastic resin outer part, the outer part circumscribing the metal boss, this embodiment comprising the steps of: (a) extruding, compression molding, or centrifugal processing of tubes in the required dimensions, optionally aided by machining steps, (b) fixing tubes produced by step (a) on a preformed core, and (c) cutting off rings from the tubes fixed on a preformed core in an appropriate length.
  • FIGURE 1 illustrates one embodiment of the invention wherein an extruded resin material is cut and then combined with metal rings, and
  • FIGURE 2 illustrates a further embodiment of the invention wherein the extruded resin material is directly combined with a metal rod and cut thereafter.
  • Both of the above-mentioned embodiments allow the production of tubes in a wide variety of materials and formulations thereof, including, for example but not by limitation, fillers, lubricants, copolymers, reinforcing fibers, etc.
  • Preferred materials include the above mentioned PA based materials, POM, PPA, PPO, PPS, PEEK, PAEK and PEKK, PAI and LCP .
  • co- extrusion of more than one material or formulation is possible in order to obtain optimal properties in relation to the function of the particular layer, for example the gear layer and the layer which facilitates attachment to the hub. Extrusion and centrifugal molding make it possible to use materials with higher thermal capabilities to meet more demanding applications than those which can be achieved with monomer cast nylon 6 or nylon 12. Further details, features and advantages of the objects of the invention are obtained from the description of the relevant drawings wherein, for example, two methods according to the present invention are explained.
  • One application of products produced by the inventive process pertains to worm gears for EPS-systems.
  • Such worm gears are rated as a "safety part" in the automotive industry.
  • Manufacturers of EPS-systems thus require materials and products without internal stress in order to assist in preventing breakage during use.
  • the processes described herein for producing tubes from thermoplastic materials all provide products with a very low stress level, thus fulfilling the aforementioned needs of the automotive industry.
  • the inventive processes exhibit significant advantages by offering much higher safety levels.
  • the process of producing the worms/worm gear of the invention starts with the extrusion of tubes 101 in the required dimensions. From these tubes, rings 102 in appropriate length are cut off (process 110) , if required machined to size, cleaned by a solvent if necessary, and pressed (process 111) onto a hub 103.
  • These hubs are preferably metallic hubs made by a machining, sintering, forging, and/ or metal injection molding process, including blanking, and are cut into corresponding rings.
  • the process of pressing the ring onto the hub is facilitated by using the residual heat of the extrusion process. According to an alternative embodiment, however, further heat can be used for step 111.
  • the device After pressing the ring 102 onto the hub 103 the device is cooled down (process 112).
  • secondary fusion (process 113) the product is fixed to the hub 103.
  • This secondary fusion is preferably performed by means of induction coils 200 around the preformed rings .
  • an annealing cycle (not shown in Fig. 1) may be used.
  • a final machining process 114 the product is separated into composite disks, if not already in this form, which then can be cut to a gear. It is preferable that the inside diameter of the synthetic material ring be somewhat smaller than the outside diameter of the metal hub.
  • the process according to this embodiment can be used for all of the currently used materials as well as the ones mentioned above. Additional advantages occur in case of semi-crystalline/amorphous materials.
  • the material on the inside will stay amorphous (first layer) .
  • the amorphous layer will allow the ring to be pressed on the tube easily and with low stress buildup.
  • the material will be heated up to allow the crystallization of the former amorphous phase.
  • the security of the application is increased, as in the injection molding process, the danger of void formation due to material shrinkage during cooling is a well known problem. However, void formation is totally absent in an extrusion process.
  • the hub may be made by any suitable process, and may be supplied in precut lengths, as billets of moderate length, or as a continuous or substantially continuous product.
  • the surface is preferably "textured" ' to facilitate firm mating with the resin outer part.
  • Various kinds of texturizing may be employed, such as the use of a sand blasted surface, a threaded or grooved surface, etc.
  • the hub is preferably of metal, all or in part. However, non-metallic hubs may also be useful in some applications. In general, the material of the hub will have higher strength properties than the "outer" which will be cut or machined into the gear.
  • thermoplastic materials include, without limitation, the polymers identified earlier, as well as thermoset polymers such as epoxy resins, bismaleimide resins, polyurethane resins, and the like.
  • the hub material will in general have a different physical property profile than the gear outer, due to the different requirements of these respective portions of the hub, and in general will have higher hardness and temperature resistance, i.e. when a thermoplastic, will have a higher melt temperature than the gear layer.
  • non-metallic hub materials may be fiber reinforced, e.g. with glass, carbon, or aramid fibers or the like.
  • thermoplastic or thermoset hub materials may also contain metal particles so that induction heating can still be used for fusing a thermoplastic outer to the hub.
  • a hybrid hub can be prepared by filling a metal tube with the hub material. The tube, following pressing onto the gear outer, can be readily induction heated to fuse the tube and the outer together.
  • the tubes 101 are continuously or semi-continuously extruded (process 120) or centrifugally molded onto a preformed core 105, resulting in an intermediate product 121.
  • the extrusion product is fixed to the core 105 according to the previous embodiment by means of induction coils 200 around the preformed product.
  • a final machining process 122 the product is finished by cutting and blanking.
  • the process of the invention includes several alternatives which can be described as follows: "cable extrusion"
  • the material is continuously or semi- continuously extruded on a preformed core.
  • the core is either formed in billets (Fig. 1) or "endless” (Fig. 2) .
  • the extrusion heat is used to press the rings on the hubs "on line” .
  • UHWM Ultra high molecular weight polyethylene rod stock was fused to a carbon steel (SAE 1117) core using a 1 KHz induction unit. The procedure was as follows:
  • the extruded UHMW rod was machined into a tubular geometry with the ID being machined to a dimension that was 2% smaller than the outside diameter of the steel (core) insert.
  • the approximate dimensions were 3"OD x 2" ID x 6" length (7.6 cm x 5.1 cm x 15.2 cm) .
  • the UHMW tube was heated to 65°C in an oven for 30 minutes in order to help it stretch over the steel insert .
  • the assembly was placed inside an induction coil and induction heated so that the steel surface reached a temperature above the melting point of the UHMW.
  • the exact time and surface temperature was selected by observation of a melt bead that forms at the steel-polymer interface. In this case, the power level and time chosen resulted in a cycle time of 30 seconds and a surface temperature of the steel of 135°C.
  • UHWM rod stock was fused to an aluminum core using a 1 KHz induction unit. The procedure was as follows:
  • the extruded UHMW rod was machined into a tubular geometry with the ID being machined to a dimension that was 2% smaller than the outside diameter of the aluminum (core) insert.
  • the approximate dimensions were 3"0D x 2" ID x 6" length (7.6 cm x 5.1 cm x 15.2 cm) .
  • the UHMW tube was heated to 65°C in an oven for 30 minutes in order to help it stretch over the aluminum insert.
  • the aluminum insert which had a knurled outside diameter (12 pitch diamond knurl) was pressed into the heated UHMW tube using a small pneumatic press.
  • the assembly was cooled to room temperature. 5.
  • the assembly was placed inside an induction coil and induction heated so that the aluminum surface reached a temperature above the melting point of the UHMW.
  • the exact time and surface temperature was selected by observation of a melt bead that forms at the aluminum-polymer interface. In this case, the power level and time chosen resulted in a cycle time of 2 minutes and a surface temperature of the aluminum of 135°C.
  • Torlon PAI tube stock was fused to a carbon steel (SAE 1117) core using a 1 KHz induction unit. The procedure was as follows:
  • the extruded Torlon PAI rod was machined into a tubular geometry with the ID being machined to a dimension that was 1% smaller than the outside diameter of the steel insert.
  • the approximate dimensions were 2.5"OD x 2" ID x 6" length (6.4 cm x 5.1 cm x 15.2 cm) .
  • the Torlon PAI tube was heated to 200°C in an oven for 45 minutes in order to help it stretch over the steel insert.
  • the assembly was cooled to room temperature. 5.
  • the assembly was placed inside an induction coil and induction heated so that the steel surface reached a temperature above the glass transition temperature of the Torlon PAI (285°C) .
  • the exact time and surface temperature was selected by observation of a melt bead that formed at the steel-polymer interface. In this case, the power level and time chosen resulted in a cycle time of 40 seconds and a surface temperature of the steel of 315°C. 6.
  • the assembly was cooled to room temperature.
  • Example 4 Stanyl PA4.6 plate stock was fused to a powder-metal formed insert using a 1 KHz induction unit. The procedure was as follows:
  • the extruded Stanyl PA4.6 plate was machined into a ring-shaped geometry with the ID being machined to a dimension that was 2% smaller than the outside diameter of the p/m steel inserts.
  • the approximate dimensions were 4.625"OD x 2.75" ID x 1" length (11.8 cm x 7.0 cm x 2.5 cm) .
  • the Stanyl 4.6 rings were heated to 150°C in an oven for 30 minutes in order to help them stretch over the p/m steel inserts.
  • the assemblies were cooled to room temperature. 5.
  • the assemblies were placed inside an induction coil and induction heated so that the steel surface reached a temperature above the melting point of the Stanyl PA 4.6 (290°C) .
  • the exact time and surface temperature was selected by observation of a melt bead that forms at the steel-polymer interface. In this case, the power level (50 kW) and time chosen resulted in a cycle time of 15 seconds and a surface temperature of the steel of 329°C. 6.
  • the assemblies were cooled to room temperature.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Gears, Cams (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne des vis sans fin composites présentant peu de contrainte résiduelle, préparées par la formation d'un tube de résine synthétique, par extrusion, par moulage par compression, ou par traitement centrifuge, et par la fixation de ce tube ainsi produit ou d'anneaux coupés à partir de ce tube sur une protubérance ou sur un noyau, de préférence métallique. Le procédé de l'invention permet d'employer des thermoplastiques de poids moléculaire élevé, de haute performance.
PCT/US2005/012713 2004-04-16 2005-04-13 Vis sans fin de direction a assistance electronique WO2005104692A2 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BRPI0509930-7A BRPI0509930A (pt) 2004-04-16 2005-04-13 engrenagens sem-fim da direção assistida por potência eletrÈnica
AU2005237465A AU2005237465A1 (en) 2004-04-16 2005-04-13 Electronic power assist steering worm gears
US11/578,624 US20070214642A1 (en) 2004-04-16 2005-04-13 Electronic Power Assist Steering Worm Gears
CA002563062A CA2563062A1 (fr) 2004-04-16 2005-04-13 Vis sans fin de direction a assistance electronique
JP2007508534A JP2007532360A (ja) 2004-04-16 2005-04-13 電子パワーアシストステアリングウォームギア
EP05735510A EP1737591A4 (fr) 2004-04-16 2005-04-13 Vis sans fin de direction a assistance electronique

Applications Claiming Priority (2)

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EP04405237.1 2004-04-16
EP04405237 2004-04-16

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WO2005104692A2 true WO2005104692A2 (fr) 2005-11-10
WO2005104692A3 WO2005104692A3 (fr) 2006-04-20

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EP (1) EP1737591A4 (fr)
JP (1) JP2007532360A (fr)
KR (1) KR20060134213A (fr)
CN (1) CN1997468A (fr)
AU (1) AU2005237465A1 (fr)
BR (1) BRPI0509930A (fr)
CA (1) CA2563062A1 (fr)
RU (1) RU2389594C2 (fr)
WO (1) WO2005104692A2 (fr)

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WO2010106120A2 (fr) 2009-03-17 2010-09-23 Quadrant Epp Ag Ebauche d'engrenage composite et son procédé de fabrication
EP2641724A1 (fr) * 2012-03-23 2013-09-25 Neturen Co., Ltd. Noyau métallique pour soudage de résine, élément composite et son procédé de fabrication
US8716979B2 (en) 2008-04-10 2014-05-06 Smiths Medical Asd, Inc. Ambulatory medical device with electrical isolation from connected peripheral device
US9266282B2 (en) 2012-03-23 2016-02-23 Neturen Co., Ltd. Core metal for resin welding, composite member and method of manufacturing the same
WO2018206169A1 (fr) * 2017-05-11 2018-11-15 Robert Bosch Gmbh Procédé de fabrication d'une roue dentée

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JP6157099B2 (ja) * 2012-12-07 2017-07-05 株式会社日立ハイテクノロジーズ ガラス・樹脂複合構造体及びその製造方法
CN105828601B (zh) * 2013-07-30 2019-02-05 图恩尼有限责任公司 模块化皮带的制造
CN103660231A (zh) * 2013-12-06 2014-03-26 山东建筑大学 一种高效挤出pvc外齿形齿轮的塑料挤出成形方法
FR3022172B1 (fr) 2014-06-11 2016-05-27 Jtekt Europe Sas Procede de fabrication d’une roue dentee a jante coulee cannelee
CN104690520B (zh) * 2015-02-12 2017-05-10 丽水学院 汽车电动助力方向机齿条丝杆加工工艺
CN107322247A (zh) * 2017-08-28 2017-11-07 安徽信息工程学院 一种涨紧轮的生产工艺
CN110315283B (zh) * 2019-05-09 2021-09-24 泰州市创新电子有限公司 一体挤铝式铝支架生产方法
US11686381B1 (en) 2020-05-08 2023-06-27 Cornerstone Research Group, Inc. Composite gear assembly and method of making same

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JP2007237459A (ja) * 2006-03-06 2007-09-20 Honda Motor Co Ltd ウオームホイールの製造方法及びウオームホイール
US8716979B2 (en) 2008-04-10 2014-05-06 Smiths Medical Asd, Inc. Ambulatory medical device with electrical isolation from connected peripheral device
WO2010106120A2 (fr) 2009-03-17 2010-09-23 Quadrant Epp Ag Ebauche d'engrenage composite et son procédé de fabrication
US9205611B2 (en) 2009-03-17 2015-12-08 Quadrant Epp Ag Composite gear blank
EP2641724A1 (fr) * 2012-03-23 2013-09-25 Neturen Co., Ltd. Noyau métallique pour soudage de résine, élément composite et son procédé de fabrication
US9266282B2 (en) 2012-03-23 2016-02-23 Neturen Co., Ltd. Core metal for resin welding, composite member and method of manufacturing the same
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WO2018206169A1 (fr) * 2017-05-11 2018-11-15 Robert Bosch Gmbh Procédé de fabrication d'une roue dentée

Also Published As

Publication number Publication date
BRPI0509930A (pt) 2007-09-25
WO2005104692A3 (fr) 2006-04-20
US20070214642A1 (en) 2007-09-20
CA2563062A1 (fr) 2005-11-10
CN1997468A (zh) 2007-07-11
RU2389594C2 (ru) 2010-05-20
EP1737591A2 (fr) 2007-01-03
AU2005237465A1 (en) 2005-11-10
JP2007532360A (ja) 2007-11-15
RU2006138999A (ru) 2008-05-27
EP1737591A4 (fr) 2007-11-28
KR20060134213A (ko) 2006-12-27

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