WO2002002296A1 - Method for the production of a resin molded article having a metallic boss - Google Patents
Method for the production of a resin molded article having a metallic boss Download PDFInfo
- Publication number
- WO2002002296A1 WO2002002296A1 PCT/NL2001/000511 NL0100511W WO0202296A1 WO 2002002296 A1 WO2002002296 A1 WO 2002002296A1 NL 0100511 W NL0100511 W NL 0100511W WO 0202296 A1 WO0202296 A1 WO 0202296A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- metallic
- bosses
- resin
- boss
- resin molding
- Prior art date
Links
Classifications
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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
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
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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
- B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
- B29C65/64—Joining a non-plastics element to a plastics element, e.g. by force
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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
- 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
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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
- 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
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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
- 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
- B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
- B29C66/5324—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length
- B29C66/53245—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow
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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
- 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
- B29C66/61—Joining from or joining on the inside
- B29C66/612—Making circumferential joints
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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
- B29C2793/00—Shaping techniques involving a cutting or machining operation
- B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
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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
- 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
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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
- 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
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
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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
- 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
- B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
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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
- B29C65/44—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
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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
- 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
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
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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
- 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
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
- B29C66/7422—Aluminium or alloys of aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
- B29C66/7428—Transition metals or their alloys
- B29C66/74281—Copper or alloys of copper
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
- B29C66/7428—Transition metals or their alloys
- B29C66/74283—Iron or alloys of iron, e.g. steel
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/94—Measuring or controlling the joining process by measuring or controlling the time
- B29C66/949—Measuring or controlling the joining process by measuring or controlling the time characterised by specific time values or ranges
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- 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
- B29L2031/32—Wheels, pinions, pulleys, castors or rollers, Rims
Definitions
- the present invention relates to a method for the production of a resin molded article having a metallic boss, and more particularly to an improvement in a production method for obtaining a multiple number of polyamide resin molded articles having a metallic boss.
- the present invention is to provide a method for the production of a multiple number of resin molded articles in which a resin molding is integrated with the outer periphery of a metallic boss, which solves the above problem.
- the invention resides in that several metallic bosses which are previously processed into a final shape or a nearly final shape are arranged in line as a multiple number of metallic bosses while maintaining a given clearance portion between them, inserting the resulting structure in the inner face of a hollow resin molding, integrally bonding the outer periphery of the metallic bosses and the inner face of the resin molding by heating to a temperature slightly above the melting temperature of the resin, and cutting and separating the product at the interval portions formed between the adjacent metallic bosses.
- a method wherein a ring spacer is lien between a metallic boss and the adjacent metallic boss to maintain the clearance portion.
- the ring spacer is of a material that does not melt during the fusion process.
- Another preferred embodiment of the invention is a method wherein a projected portion for clearance is integrally molded with a side face of the metallic boss, maintaining a given clearance portion between the metal bosses.
- Resins suitable for the present invention may be selected from high performance polymers with high thermal stability and good mechanical properties, such as polyesters, polyamides, fluoropolymers, polyketones (like PEEK, PEAK, PEKK), polyimides (like PAI), etc.
- the coefficient of thermal expansion of the resin material should be close to the coefficient of thermal expansion of the metallic boss to preserve the integrity of the joined resin-metal body.
- the most preferred resins for use in production of worm gears are polyamides (like nylon 6, nylon 12, nylon 4,6) and polyacetals.
- a molded polyamide resin body (with inside diameter similar to the outside diameter of the metallic bosses) is pressed over the metallic boss- structure to produce a nylon coated metal product.
- Molded resin articles according to the present invention may be obtained from a wide variety of metals, such as steel, iron, brass, bronze or aluminum. Choice of a suitable metal for the metal bosses depends on the desired mechanical characteristics of the end product. For production of worm gears for automotive power steering systems requiring high load, energy and torque capacity, the preferred metal is steel.
- the metallic boss may be obtained by sintering of powder metal, i.e. by pressing powder metal and then heating the pressed metal.
- powder metal i.e. by pressing powder metal and then heating the pressed metal.
- Various metals such as steel, brass, aluminum or bronze may be used in the invention.
- the powder metal is placed into a die of a desired shape and compacted or pressed to form the unitary metallic boss of the desired configuration.
- the pressed metal particles are held together by inter- particle friction to form a "green-compact”.
- the green compact is then placed into a furnace and heated to a temperature which is less than the melting temperature of the metal but which is sufficiently high to soften the metal particles and cause coalescing of the interfaces between the particles to unify the structure into a sintered metal matrix.
- the resulting structure is inherently porous.
- the metal body can be formed or sintered into a wide variety of final forms, from simple bars or rods to more complex irregular shapes depending on the end use of the final product.
- the preferred powder metal is stainless steel powder.
- a preferred method is a method, wherein the metallic boss- structure is directly inserted immediately after the hollow resin molding is molded, and followed by heat fusion.
- the hollow resin molding has a cylindrical shape, as many of the final products require a cylindrical form.
- the metallic bosses which are previously processed into a final or nearly final shape, must have an identical or nearly identical outer diameter, in order to successfully mold the resin over all the metallic bosses.
- the metallic bosses are alined, so as to be able to cover all metallic bosses with the resin.
- a preferred mode is wherein the metallica bosses are alined via a shaft through a hole provided at the central part of the metallic bosses.
- the temperature difference between the coil temperature and the melting temperature is not more than 50°C, more preferred not more than 25°C, and mostly preferred not more than 15°C.
- the molten resin flows to and fills the pores, voids, cavities and other irregularities on the surface of the metallic bosses.
- the joined body is then cooled to a temperature below the melting temperature of the resin, the resin solidifies and bonds adhesively and mechanically to the metallic bosses.
- metallic bosses made via a powder sintering process, and due to the high porosity of the sintered powder metallic bosses, the bonding forces between the molded resin body and the metallic bosses are significantly stronger than the bonding forces in articles based on molded and knurled metallic bosses.
- the moulded resin article of the present invention is made by hot pressing a molded resin body to the outer circumference of a metallic boss structure and joining the parts together preferably using high frequency induction heating.
- the process for high frequency induction heating as such is known in the art. It generally uses a frequency of 0.5-200 kHz in a period of from 10-200 sec, this being dependant of the melting point of the resin in the molded resin body.
- the temperature to which the metallic boss is heated is slightly above the melting temperature of the resin; in the case nylon-6 is used, said temperature is in the range of 240-260°C.
- the resulting product is cut and the individual coated metal bosses are separated, for instance by sawing at the internal portions formed between the adjacent metallic bosses.
- the molded resin article with a metallic boss that has been obtained as described above can be converted to a cogwheel part by sawtooth processing in the outer surface of the molded resin body, or it can be used as revolving articles such as wheels and rollers etc., and as construction members for tightening of industrial machinery and machine tools etc.
- the molded resin body has been molded from a polyamide resin, it is suited as a raw material for machine parts for precision devices such as electronic machinery, because it can be used without oil supply. Because in the molded resin article with a metallic boss and the process for preparing such an article according to this invention, a metallic boss that has been preprocessed by forging etc., is used, metallic bosses with various forms of the side surfaces can be obtained in a simple way, and mass production with a good efficiency is possible without afterprocessing. Moreover, worrying about disposal of mixed processing waste of metal and resin scraps, that are produced by the afterprocessing as in the past, is not necessary.
- the length of the resin molding is much greater than the thickness of each individual metallic boss.
- the man skilled in the art can easily determine the optional length of the resin molding, in order to be able to practically work the invention.
- the inner diameter of the resin molding is similar to the outside diameter of the metal bosses, and is preferably 0,4 - 3% smaller than said outside diameter. Because the production method of the resin molded part having the metallic boss of the present invention can use metallic bosses obtained by previously processing the metallic bosses by a lathe or the like, a multiple number of resin molded parts having a metallic boss having complicated various side portion shapes can simultaneously be produced with good efficiency. Further, if the method of the present invention is employed, there is no necessity to worry about disposal of processed wastes in which cut pieces of metal and resin, generated by the post-processing as in the conventional method, are mixed.
- Fig. 1 is a partially cut front view showing the embodiment that metallic bosses and spacer rings are alternately arranged on a shaft to fix them in a spit state.
- Fig. 2 is a partially cut front view showing the embodiment wherein a cylindrical resin molding is integrally bonded to the outer periphery of a metallic boss by heat fusion.
- Fig. 3 is a sectional view showing one embodiment wherein a resin molding having a metallic boss is obtained by the production process of the present invention
- Fig. 4 is a sectional view showing other embodiment of a resin molding having a metal boss obtained in the production process of the present invention.
- numeral 1 indicates a metallic boss, said metallic boss
- the metallic boss has a hole 11 at the central portion, and surface uneven processing such as knurl processing or sandblast processing has been applied to the outer periphery. Further, slight bevel processing has been applied to corner portions of the outer periphery.
- Numeral 3 indicates a spacer ring, and the spacer ring 3 is lien in order to maintain a given clearance portion between metallic boss 1 and the adjacent metallic boss 1 , thereby securing a cutting space T.
- the spacer ring 3 has a hole having the same diameter as that of the hole 11 of the metallic boss at the central portion thereof, and its outer diameter is much smaller than the outer diameter of the metallic boss 1. Further, its side shape is formed so as to be similar to the shape of the side face of the metallic boss 1 , and the thickness thereof is suitably about 1.5-3 mm.
- Numeral 4 is a shaft, and has an outer size which permits to penetrate the holes provided at the central portions of the metallic bosses 1 and the spacer rings 3. Screws, for example, are placed at both edges, thereby forming a structure such that nut 5 is screwed together to the shaft.
- Nut 5 is screwed together to one edge of the shaft 4, the metallic bosses 1 and the spacer rings 3 are alternately fitted to the shaft 4, and the final edge of the shaft is screwed together with the nut 5.
- each metallic boss 1 is fixed in a spit state and lined up while maintaining a clearance T corresponding to the thickness of the spacer ring 3.
- the outer periphery of each metallic boss 1 may be subjected at once to knurl processing or the like at the stage of being fixed in the spit state.
- numeral 21 indicates a long-sized cylindrical resin molding.
- the long-sized cylindrical resin molding 21 is a cast molded product comprising for instance a polyamide resin, and its inner diameter is formed so as to be smaller by its tightened part than the outer diameter of the metallic boss 1.
- the metallic boss 1 in a spit state as shown in Fig. 1 is directly inserted, and after passing through appropriate annealing and aging steps, the outer periphery of the metallic boss 1 and the inner periphery of the long-sized cylindrical resin molding 21 are heat fused by, for example, high frequency heating, followed by cooling and solidifying, thereby preparing an intermediate material.
- the steps that after the long-sized cylindrical resin molding 21 is completely cooled, the inner face thereof is processed to a defined size, the molding is re-heated, the metal boss 1 in a spit state is inserted therein, followed by heat fusion, thereby integrally bonding the outer periphery of the metallic boss 1 and the inner periphery of the long-sized cylindrical resin molding 21.
- a clearance portion T is formed, in which a part of the inner periphery of the long-sized cylindrical resin molding 21 does not contact with the outer periphery of each metallic boss 1.
- the portion of the clearance portion T of the long-sized cylindrical resin molding 21 is cut at once using a rotating multi-blades tool from the outer periphery, so that each adjacent metallic boss is individually separated, and a multiple number of resin molded parts having the resin molding 2 integrated with the outer periphery of the metal boss 1 are simultaneously produced.
- the nut 5 is removed from the shaft, and each resin molding having the metallic boss in it is taken out from the shaft 4.
- the resin molded parts are taken out from the shaft 4 and, if necessary, a fitting processing is applied, thereby obtaining a resin molded part having the resin molding 2 integrated with the outer periphery of the metallic boss
- Fig. 4 shows that a projected portion 12 for clearance is integrally provided to the side face of the metallic boss 1 , and in fixing the metal boss in a spit state, a given clearance portion is formed between the adjacent metallic bosses.
- the projection size of the projected portion 12 can be set to the same degree of the thickness as that of the spacer ring 3.
- the cutting step is not a step of simultaneously cutting the metal and resin, as in the case in the convention method, but is a cutting step which cuts only resin material of the long-sized cylindrical resin molding 21. Therefore, the cutting and processing conditions can be set in conformity with the optimum conditions of the resin material. As a result, processing finish and productivity are very good. Further, in the method of the present invention, the cutting space T of the long-sized cylindrical resin molding 21 can be minimized, so that the amount of cutting wastes of the resin can be small.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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AU2001271140A AU2001271140A1 (en) | 2000-07-06 | 2001-07-05 | Method for the production of a resin molded article having metallic boss |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2000/226278 | 2000-07-06 | ||
JP2000226278A JP3779136B2 (en) | 2000-07-06 | 2000-07-27 | Manufacturing method of resin molded product having metal boss |
Publications (1)
Publication Number | Publication Date |
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WO2002002296A1 true WO2002002296A1 (en) | 2002-01-10 |
Family
ID=18719922
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NL2001/000511 WO2002002296A1 (en) | 2000-07-06 | 2001-07-05 | Method for the production of a resin molded article having a metallic boss |
Country Status (2)
Country | Link |
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AU (1) | AU2001271140A1 (en) |
WO (1) | WO2002002296A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2641724A1 (en) * | 2012-03-23 | 2013-09-25 | Neturen Co., Ltd. | Core metal for resin welding, composite member and method of manufacturing the same |
EP3050692A1 (en) * | 2015-01-28 | 2016-08-03 | Steering Solutions IP Holding Corporation | Powder metal hub and treatment |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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DE1242854B (en) * | 1959-12-17 | 1967-06-22 | Kupfer Asbest Co | Process for the production of sealing rings |
DE2232727A1 (en) * | 1972-07-04 | 1974-01-24 | Continental Gummi Werke Ag | Variable diameter mould - esp for coating roller cores with a plastic outer case |
JPS55142614A (en) * | 1979-04-26 | 1980-11-07 | Max Co Ltd | Production of tie |
JPH03196993A (en) * | 1989-12-25 | 1991-08-28 | Sumitomo Rubber Ind Ltd | Manufacture of rubber roller component |
JPH07237266A (en) * | 1994-02-25 | 1995-09-12 | Mitsuboshi Belting Ltd | Production of polyamide resin with metallic boss |
-
2001
- 2001-07-05 WO PCT/NL2001/000511 patent/WO2002002296A1/en active Application Filing
- 2001-07-05 AU AU2001271140A patent/AU2001271140A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1242854B (en) * | 1959-12-17 | 1967-06-22 | Kupfer Asbest Co | Process for the production of sealing rings |
DE2232727A1 (en) * | 1972-07-04 | 1974-01-24 | Continental Gummi Werke Ag | Variable diameter mould - esp for coating roller cores with a plastic outer case |
JPS55142614A (en) * | 1979-04-26 | 1980-11-07 | Max Co Ltd | Production of tie |
JPH03196993A (en) * | 1989-12-25 | 1991-08-28 | Sumitomo Rubber Ind Ltd | Manufacture of rubber roller component |
JPH07237266A (en) * | 1994-02-25 | 1995-09-12 | Mitsuboshi Belting Ltd | Production of polyamide resin with metallic boss |
Non-Patent Citations (3)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 005, no. 010 (M - 051) 22 January 1981 (1981-01-22) * |
PATENT ABSTRACTS OF JAPAN vol. 015, no. 458 (M - 1182) 21 November 1991 (1991-11-21) * |
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 01 31 January 1996 (1996-01-31) * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2641724A1 (en) * | 2012-03-23 | 2013-09-25 | Neturen Co., Ltd. | Core metal for resin welding, composite member and method of manufacturing the same |
EP3050692A1 (en) * | 2015-01-28 | 2016-08-03 | Steering Solutions IP Holding Corporation | Powder metal hub and treatment |
CN105889460A (en) * | 2015-01-28 | 2016-08-24 | 操纵技术Ip控股公司 | Powder metal hub and treatment |
US9759304B2 (en) | 2015-01-28 | 2017-09-12 | Steering Solutions Ip Holding Corporation | Powder metal hub and treatment |
CN105889460B (en) * | 2015-01-28 | 2018-12-25 | 操纵技术Ip控股公司 | Powdered-metal hub and processing |
Also Published As
Publication number | Publication date |
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AU2001271140A1 (en) | 2002-01-14 |
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