WO2006090701A1 - 過給機用羽根車およびその製造方法 - Google Patents
過給機用羽根車およびその製造方法 Download PDFInfo
- Publication number
- WO2006090701A1 WO2006090701A1 PCT/JP2006/303062 JP2006303062W WO2006090701A1 WO 2006090701 A1 WO2006090701 A1 WO 2006090701A1 JP 2006303062 W JP2006303062 W JP 2006303062W WO 2006090701 A1 WO2006090701 A1 WO 2006090701A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- impeller
- mold
- supercharger
- slide
- blades
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/28—Moulds for peculiarly-shaped castings for wheels, rolls, or rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/14—Machines with evacuated die cavity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/2069—Exerting after-pressure on the moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2254—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies having screw-threaded die walls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/20—Rotors
-
- 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
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49236—Fluid pump or compressor making
- Y10T29/49245—Vane type or other rotary, e.g., fan
-
- 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
- Y10T29/49316—Impeller 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
- Y10T29/49316—Impeller making
- Y10T29/49336—Blade 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
- Y10T29/4998—Combined manufacture including applying or shaping of fluent material
- Y10T29/49988—Metal casting
Definitions
- the present invention relates to a supercharger impeller used for a supercharger that uses exhaust gas from an internal combustion engine to send compressed air, and a method for manufacturing the same.
- a turbocharger incorporated in an engine such as an automobile rotates an intake-side impeller on the same axis by rotating an exhaust-side impeller by exhaust gas from the engine, and uses compressed air to the engine. Supply and improve engine output. Since the exhaust impeller is exposed to high-temperature exhaust gas exhausted from the engine, Ni-base super heat-resistant alloys are generally used, and the shape is not so complicated, so it is manufactured by the lost wax casting method. On the other hand, since the intake-side impeller is not exposed to high temperatures, aluminum alloys are mainly used. In order to improve the compressibility of compressed air, the intake-side impeller usually has a complicated blade shape in which two or more types of blades having different shapes are alternately arranged adjacent to each other.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2003-94148
- Patent Document 1 has higher strength than aluminum alloy.
- the application of a titanium alloy as disclosed in (1) is being studied.
- improvement of the impeller blade shape and dimensional accuracy is being studied in order to improve aerodynamic characteristics.
- magnesium alloys that are stronger than aluminum alloys and lighter than titanium alloys is also being considered.
- the mold forging method is a forging method in which a mold is formed by directly filling a mold with molten or semi-molten molten metal.
- the mold forging method is classified into, for example, a low pressure forging method, a gravity forging method, and a pressure forging method depending on the supply pressure of the molten metal to the mold.
- the mold forging method is classified into a suction forging method, a reduced pressure forging method, an injection forging method, etc., depending on the molten metal supply method.
- a pressure forging method in which a molten metal is pressurized and filled into a mold is generally called a die casting forging method, and is often used because it has good hot water resistance and hardly causes uneven cooling.
- the injection forging method for supplying a semi-molten molten metal to a mold is also referred to as a thixo mold forging method, in which a molten metal with a molten metal temperature lower than that of the conventional die casting method is injection molded into the mold. It is possible to obtain high dimensional accuracy with few solidification defects such as shrinkage and cracking.
- Patent Document 3 discloses a decorative article made of aluminum alloy or magnesium alloy, various containers, precision parts, a housing for precision equipment such as a camera and a computer, and an automobile part.
- the intake-side impeller often has a complicated blade shape having two types of long and short blades, and in particular when the blade portion has an undercut, a conventional mold fabrication method.
- the plaster mold method is used, in which gypsum is poured into a flexible rubber model to make a bowl.
- a master model of an impeller is manufactured, a silicone rubber is poured into the master model, a rubber mold is made, and then a silicone rubber is injected into the rubber mold to form a rubber model.
- the dimensional accuracy is inferior compared to the mold fabrication method.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2003-94148
- Patent Document 2 Japanese Unexamined Patent Publication No. 2000-213493
- Patent Document 3 Japanese Patent Application Laid-Open No. 2004-291032
- the present inventor has taken advantage of the mold forging method, which has better dimensional accuracy than the plaster mold method, has a smooth and beautiful skin, and requires less machining, and eliminates the loss in the lost wax forging method. Focusing on the fact that the model has substantially the same shape as the impeller, we examined the injection of molten metal directly into the mold for forming the vanishing model to form the impeller. However, in the case of an impeller having an undercut in the radial direction from the central axis in a space surrounded by blades formed by alternately adjoining long blades and short blades, Opening is difficult.
- the blade shape is redesigned so that the two-dimensional moving slide mold can be pulled out of the forged impeller.
- the shape of the blade is extremely limited, and it becomes difficult to manufacture an impeller having a complicated shape having high aerodynamic performance.
- An object of the present invention is to provide an impeller for a supercharger which can solve these problems and can be expected to have high aerodynamic performance, and a method for manufacturing the impeller.
- the present inventor tried to form an impeller having a shape with an undercut in the radial direction by directly forging the molten metal into a mold, and the slide having a specific structure in the forged mold.
- the application of the mold and optimization of the mold release operation were studied, and the present invention was achieved.
- a disk-shaped hub extending radially from the central axis, and a plurality of blades extending the hub force, wherein long blades and short blades having an aerodynamic curved surface are alternately adjacent to each other.
- a space surrounded by the blades in a method for manufacturing a turbocharger turbine that is forged in a mold that forms an undercut in the radial direction from the center shaft.
- the step of forging the mold is defined by arranging a plurality of slide molds having a bottomed groove portion having a short blade shape and a space shape between a pair of adjacent long blades radially toward the central axis. Forming a molten metal in the space, and then moving the slide mold in the radial direction of the central axis while rotating, and releasing the mold. It is a manufacturing method of the impeller for superchargers.
- the mold apparatus used in the mold forging process is moved in the radial direction with respect to the movable mold that can be opened and closed in the direction of the central axis, the fixed mold, and the central axis.
- a plurality of possible slide dies and a slide support for supporting each of the slide dies are provided, and the plurality of slide dies can be interlocked by driving each slide support. can do.
- the slide mold can be integrally formed by joining a plurality of cores (that is, a plurality of components).
- the flow line for releasing each slide mold from the forged impeller is a flow line on the XY coordinate of the two-dimensional plane in which the central axis of the impeller is a vertical line, and around the flow line on the XY coordinate. It is preferable that the flow line is composed of a flow line including the rotational component.
- the partitioning line corresponding portion can be formed only on the trailing edge surface, the fillet surface, and the leading edge surface that constitute the outer periphery of the long blade in the space surrounded by the blades. .
- the partitioning line corresponding portion can be formed only on the trailing edge surface, the fillet surface, and the leading edge surface that constitute the outer periphery of the long blade in the space surrounded by the blades. .
- the impeller for a supercharger includes a central shaft, a disk-shaped hub in which the central axial force also spreads in the radial direction, and a plurality of blades extending the hub force, and has an aerodynamic curved surface.
- a turbomachinery impeller with a die forging which has long blades and short blades arranged alternately and adjacently, and forms an undercut in the radial direction from the center axis. In each space defined by a pair of long blades, only the trailing edge surface, the fillet surface, and the leading edge surface constituting the outer periphery of the long blades have a parting line corresponding portion. .
- a supercharger impeller made of an aluminum alloy can be obtained by forging an aluminum alloy in a mold.
- the present invention can be applied not only to an aluminum alloy but also to a general forging material such as another magnesium alloy.
- the impeller of the present invention can be used as an impeller on the intake side of a supercharger.
- a magnesium alloy is particularly suitable for application of the present invention in that it is lighter and has a higher specific strength than an aluminum alloy.
- an important feature of the present invention is that a shape in which an undercut is formed in the radial direction from the center axis is manufactured by applying a mold forging method in which molten metal is directly filled into a mold. This is because the application of a slide mold having a specific structure to the mold for casting the molten metal and the release operation have been optimized.
- a process of forging a mold a plurality of slide molds having a short blade-shaped bottomed groove and a space shape between a pair of adjacent long blades are radially distributed toward the central axis.
- a process is adopted in which the molten metal is forged and formed in the space defined by the arrangement, and then the slide mold is rotated and moved in the radial direction of the central axis while being released.
- a slide mold which is one of the important features of the present invention, has a short blade-shaped bottomed groove portion and a space shape between a pair of adjacent long blades, and includes a long blade including the short blades.
- the space between the blades, or simply the space for two long blades, can be formed with a single slide mold.
- the short blade-shaped bottomed groove is a cavity for forming the short blade
- the space defined by arranging a plurality of slide molds radially toward the central axis is the shape of the long blade and the central shaft. It will be the ability to determine Thereby, it is possible to form a cavity having substantially the same shape as the impeller for the supercharger.
- the mold can be simplified, and in this space, the trailing edge surface and fillet that form the outer periphery of the long blades Parting line corresponding parts can be provided only on the surface and leading edge surface.
- the molten metal is forged and formed on the slide mold arranged as described above.
- the target is a shape in which an undercut is formed in the radial direction
- the slide mold is used. Even if the mold is moved in the two-dimensional space formed in the radial direction of the central axis, it cannot be released.
- the slide mold is moved in the radial direction of the central axis while being rotated to release the mold.
- the flow line for releasing the slide mold from the fabricated impeller is added to the flow line formed by the movement on the XY coordinate of the two-dimensional plane with the central axis of the impeller extending in the radial direction.
- the impeller for a turbocharger obtained by the manufacturing method described above has no parting line corresponding part in the deviation between the hub surface and the blade surface in the space surrounded by the blades, the aerodynamics Supercharger impeller with excellent performance.
- Fig. 1 is a schematic diagram of an impeller 1 for a supercharger having blades formed by alternately adjoining long blades and short blades used in an internal combustion engine supercharger. This is a simplified diagram of the blade (only two long blades and one short blade are shown for clarity). A plurality of long blades 3 and 4 short blades project radially from the center surface 20 in a radial direction from the central axis 20, and the long blades 3 and 4 each have a complex aerodynamic curved blade surface. 5 on the front and back.
- the blade surface 5 is on the trailing edge surface 21 and the fillet surface 22 corresponding to the outer peripheral surfaces in the radial direction of the long blade 3 and the short blade 4, respectively, and on the uppermost portions of the long blade 3 and the short blade 4 respectively.
- the curved surface portion does not include the corresponding leading edge surface 23.
- the hub surface 2 and the blade surface 5 in the space surrounded by the blades composed of the long blades 3 and the short blades 4 correspond to the shaded space 10 in FIG.
- the blade surface in the present invention refers to, for example, the trailing edge surface 21 and the fillet surface 22 constituting the outer periphery of the long blade 3 in the turbocharger impeller 1 shown in FIG. This means the curved surface that does not include the leading edge 23 that is the top of the long blade.
- the parting line as used in the field of this invention means the linear trace which generate
- a slide mold having a short blade-shaped bottomed groove portion applied to the present invention and a space shape between a pair of adjacent long blades can be integrally moved when separated from a forged impeller. Anything is acceptable.
- the slide mold may be one in which the slide mold is manufactured integrally, or may be one in which a plurality of cores are manufactured and then joined together by bolting, brazing, or the like.
- the two cores 25 and 26 are joined together at the joining surface 27 to be integrally formed. This is because, when trying to obtain a cavity shape of a short blade that is a thin curved surface as a bottomed groove part, it is difficult to perform groove processing alone, and in many cases, it is easy to manufacture a slide mold by dividing.
- a forging method in which the impeller for a supercharger in Fig. 1 is formed by forging a molten metal directly into a mold is applied and manufactured by the following steps. First, prepare the molten metal to be forged into the mold, then supply the molten metal to the forging machine, forge the molten metal into the mold and mold it, then move the mold as shown in Fig. 7 and open the mold, forging molding The impeller which is the formed body 18 is released. The step of releasing the forged impeller is the most important step in the production method of the present invention.
- FIG. 3 shows an example of a mold apparatus applied to the present invention.
- the mold is a movable mold 6 that can be opened and closed in the direction of the central axis 20 of the impeller, a fixed mold 7, and a plurality of slide molds 8 that can move in the radial direction with respect to the central axis 20 of the impeller. It is composed of a plurality of slide supports 9 that support this.
- Fig. 4 is an arrow view of the main part of the fixed mold 7 (only one slide mold 8 and one slide support 9 are shown for clarity), and Fig. 5 is a schematic diagram of the slide mold 8. It is.
- One slide mold 8 is composed of a hub cavity defining part 11, a blade cavity defining part 12, and a bottom groove part 13 (shown by a dotted line).
- the hub cavity defining unit 11 includes one short blade and defines a hub surface 2 in a space between a pair of adjacent long blades.
- the blade cavity defining part 12 includes two opposing blade surfaces 5 of a pair of adjacent long blades, a trailing edge surface 21, a fillet surface 22, and a leading edge surface that form a parting line in a space surrounded by the blades. Define 23.
- the bottomed groove 13 is short. Define the feathers. That is, one slide mold 8 defines a shape corresponding to the space 10 indicated by the hatched portion in FIG.
- FIG. 6 is a side view showing a joint structure between the slide mold 8 and the slide support 9.
- the slide mold 8 is attached to a fixed pin 16 fixed to the slide support 9 so as to be rotatable about a rotation axis 14 through a bearing 15 provided at the tip of the fixed pin 16 as a center of rotation.
- the slide mold 8 can be easily rotated with little resistance around the rotation axis 14.
- a ring-shaped support plate 17 is installed on the bottom surface within the radial movable range of the slide mold 8, and the slide mold 8 is supported by the support plate 17. Is done.
- the support plate 17 can move in the direction of the central axis 20 of the impeller.
- the support plate 17 is moved away from the slide mold 8 so that the slide mold 8 can freely rotate.
- the support plate 17 is supported only by the slide support 9. Further, when the mold is clamped, the support plate 17 is returned to the original position to restrict the rotation of the slide mold 8.
- the determination of the rotation axis of the slide mold is important.
- a partial model including a pair of long blades adjacent to each other with a single short blade is produced, and a search model is obtained by pouring resin into this partial model.
- the search model can also be searched by attempting to actually pull it out from the partial model.
- the rotation axis 14 that is the flow line of the slide mold 8 necessary for releasing from the impeller is determined by the above-described method.
- the molded body 18 formed in cooling after forging slightly contracts, so that there is a slight contraction between the slide mold and the molded body 18.
- the molded body 18 itself may be slightly elastically deformed, and even if the flow line of the slide mold 8 interferes with the impeller to some extent at the CADZCAM analysis stage, the dimensional accuracy is not affected. A mold is possible.
- the rotation axis 14 described above is arranged in the impeller according to the direction of the undercut. It does not necessarily need to be perpendicular to the central axis 20 and does not need to intersect the central axis 20.
- the slide mold 8 may be moved backward with an angle of several degrees in the direction of the central axis 20.
- the above-mentioned slide molds 8 are arranged in the fixed mold 7 in an annular shape as many as the number of impeller spaces 10, and each slide mold 8, movable mold 6 and fixed mold 7 are molded.
- a cavity corresponding to the shape of impeller 1 is defined.
- the cavity is filled with a molten or semi-molten molten metal using a forging machine such as an injection molding forging machine and then molded.
- the slide mold 8 is connected to the slide support 9 by the fixing pin 16 via the bearing 15 installed on the rotation axis 14, so that the surface of the long blade and the short blade of the impeller There is little resistance around the axis of rotation 14 along the shape.
- the bearing 15 is composed of inner and outer rings, and the inner ring is fixed to the fixing pin 16 and the outer ring is fixed to the slide mold 8.
- FIG. 7 shows this specific rotation operation.
- the portion of the slide mold 8 that defines the cavity corresponding to the space 10 shown in FIG. 2 is hatched.
- 7A to 7D show a state where the slide mold 8 is released from the molded body 18.
- the slide mold 8 rotates about the rotation axis 14 while moving backward in the radial direction of the center axis 20, and finally released as shown in FIG. 7 (d).
- the trailing edge surface 21, the fillet surface 22, and the lead Parting line corresponding portions are formed only on the edge surface 23. That is, an impeller can be obtained without a parting line at locations corresponding to the hub surface 2 and the blade surface 5 in the space 10 shown in FIG.
- the slide support 9 a method of manually moving back and forth each slide support, or preferably, the slide support 9 is integrated with an interlocking structure, and the slide mold 8 is integrated.
- a method of simultaneously pulling out from the impeller can be employed.
- the fixed mold 7 is constituted by a fixed mold upper base 30, a fixed mold lower base 31, and a cam plate 32 having a cam groove 33. Then, the guide pins 24 of the individual slide supports 9 are communicated with the groove 19 of the fixed mold upper base 30 and the cam groove 33 so as to be integrated together.
- a drive lever 34 connected to a drive device (not shown) such as a motor pressure cylinder is provided on the cam plate 32, and each cam slide 32 is driven by driving the cam plate 32 via the drive lever 34.
- the support 9 is integrated and interlocked so that the individual slide molds 8 can be released. It is also preferable to automatically control the movement of the slide support.
- the supercharger impeller of the present invention can be obtained by removing unnecessary runners, gates, burrs and the like from the molded body 18 after forging.
- surface treatment such as plating and painting can be performed on the obtained impeller.
- the molten metal may be produced by any method as long as it is suitable for the alloy to be used.
- a direct heating furnace such as a gas type or an indirect heating such as an electric type is used. What is necessary is just to melt
- the molten metal may be handled in the air or in an inert gas atmosphere.
- the molten metal is supplied to a forging machine, and the mold is formed in a molten or semi-molten state having a temperature and fluidity suitable for forging.
- the forging molding conditions such as the temperature, pressure and speed for forging and the cooling pattern after forging may be selected so as to suit the molten metal, the shape of the impeller, the forging machine and the like.
- a suction forging method when forging a molten metal into a mold, it is preferable to apply a suction forging method, a reduced pressure forging method or a pressure forging method because good hot water performance can be obtained even in a thin portion of an impeller.
- the thixo-mold forging method is used to prevent shrinkage and cracking of the molded product. It is suitable with few solidification defects.
- the impeller of the present invention is used in a supercharger that uses exhaust gas from an internal combustion engine to send compressed air.
- FIG. 1 is a schematic diagram showing an example of an impeller for a supercharger.
- FIG. 2 is a simplified diagram of an example of a blade.
- FIG. 3 is an overall view showing an example of a mold apparatus.
- FIG. 4 is an essential part arrow view showing an example of a fixed mold.
- FIG. 5 is a schematic view showing an example of a slide mold.
- FIG. 6 is a side view showing an example of a joint structure between a slide mold and a slide support.
- FIG. 7 is a schematic diagram showing an example of a mold release operation of a slide mold.
- FIG. 8 is a schematic diagram showing an example of a configuration that enables the slide mold to be interlocked.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Supercharger (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/574,661 US8021117B2 (en) | 2005-02-22 | 2006-02-21 | Impeller for supercharger and method of manufacturing the same |
JP2007504726A JP4833961B2 (ja) | 2005-02-22 | 2006-02-21 | 過給機用羽根車およびその製造方法 |
EP06714202.6A EP1857203B1 (en) | 2005-02-22 | 2006-02-21 | Impeller for supercharger and method of manufacturing the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005045157 | 2005-02-22 | ||
JP2005-045157 | 2005-02-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006090701A1 true WO2006090701A1 (ja) | 2006-08-31 |
Family
ID=36927341
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/303066 WO2006090702A1 (ja) | 2005-02-22 | 2006-02-21 | コンプレッサ羽根車およびその製造方法 |
PCT/JP2006/303062 WO2006090701A1 (ja) | 2005-02-22 | 2006-02-21 | 過給機用羽根車およびその製造方法 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/303066 WO2006090702A1 (ja) | 2005-02-22 | 2006-02-21 | コンプレッサ羽根車およびその製造方法 |
Country Status (6)
Country | Link |
---|---|
US (2) | US8021117B2 (ja) |
EP (2) | EP1854570A4 (ja) |
JP (2) | JP4523032B2 (ja) |
KR (2) | KR100838675B1 (ja) |
CN (2) | CN100548533C (ja) |
WO (2) | WO2006090702A1 (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008303740A (ja) * | 2007-06-05 | 2008-12-18 | Kawamoto Pump Mfg Co Ltd | 給水ポンプのインペラ及びインペラの製造方法 |
US8292589B2 (en) | 2006-06-29 | 2012-10-23 | Hitachi Metals Precision, Ltd. | Casting aluminum alloy, cast compressor impeller comprising the alloy, and process for producing the same |
JP2012529585A (ja) * | 2009-06-08 | 2012-11-22 | マン・ディーゼル・アンド・ターボ・エスイー | 圧縮機インペラ |
CN104989665A (zh) * | 2015-06-09 | 2015-10-21 | 昆山广禾电子科技有限公司 | 轻小镁铝合金风扇的制程工艺 |
CN110005635A (zh) * | 2019-01-28 | 2019-07-12 | 天津大学 | 一种叶轮的设计方法 |
EP3527831A4 (en) * | 2016-10-12 | 2020-05-20 | Enplas Corporation | INJECTION MOLDED WING WHEEL |
US11028856B2 (en) | 2016-05-09 | 2021-06-08 | Ihi Corporation | Centrifugal compressor impeller |
Families Citing this family (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006029960A1 (de) * | 2006-06-29 | 2008-01-03 | BSH Bosch und Siemens Hausgeräte GmbH | Trockner mit verringerter Geräuschentwicklung, hierfür geeignetes Gebläse und Läuferrad sowie Verfahren zur Herstellung des Läuferrades |
JP2008272787A (ja) * | 2007-04-27 | 2008-11-13 | Hitachi Metals Ltd | コンプレッサ羽根車の製造方法 |
DE112008002864B4 (de) * | 2007-11-16 | 2020-03-12 | Borgwarner Inc. | Titanverdichterrad mit geringer Schaufelfrequenz |
WO2009070599A1 (en) * | 2007-11-27 | 2009-06-04 | Emerson Electric Co. | Bi-directional cooling fan |
CN100462566C (zh) * | 2007-11-29 | 2009-02-18 | 北京航空航天大学 | 叶片沿周向非均匀分布的大小叶片叶轮及压气机 |
JP2010270645A (ja) * | 2009-05-20 | 2010-12-02 | Ihi Corp | インペラの製造方法 |
KR101131529B1 (ko) * | 2009-09-14 | 2012-04-04 | 주식회사 캐스트맨 | 금형장치 |
GB2475533B (en) * | 2009-11-21 | 2016-04-13 | Cummins Turbo Tech Ltd | Compressor wheel |
GB2531980B (en) * | 2009-11-21 | 2016-08-10 | Cummins Turbo Tech Ltd | Compressor wheel |
CN102091919B (zh) * | 2009-12-09 | 2013-03-06 | 沈阳鼓风机集团股份有限公司 | 一种三元闭式叶轮的加工方法 |
JP5633739B2 (ja) | 2010-10-29 | 2014-12-03 | アイシン精機株式会社 | 羽根車の成形装置 |
CN102125998A (zh) * | 2010-12-31 | 2011-07-20 | 大同北方天力增压技术有限公司 | 涡轮增压器压气机叶轮模具的制作方法 |
US8919422B2 (en) * | 2011-02-18 | 2014-12-30 | United Technologies Corporation | Die casting system and cell |
US8468824B2 (en) | 2011-02-25 | 2013-06-25 | Bendix Commercial Vehicle Systems Llc | Method of operating a vehicle equipped with a pneumatic booster system |
CN102242731A (zh) * | 2011-08-23 | 2011-11-16 | 无锡杰尔压缩机有限公司 | 一种高效的全三元叶轮 |
EP2782664A4 (en) * | 2011-11-24 | 2015-07-15 | Li Wang | MIXED IMPELLER WITH CIRCULAR SHOVELS |
US9108170B2 (en) * | 2011-11-24 | 2015-08-18 | Li Wang | Mixing impeller having channel-shaped vanes |
FR2985923B1 (fr) * | 2012-01-24 | 2016-02-05 | Snecma | Carapace pour la fabrication par moulage a cire perdue d'elements aubages de turbomachine d'aeronef, comprenant des bras de coulee inclines |
CN102661174A (zh) * | 2012-02-24 | 2012-09-12 | 苏州制氧机有限责任公司 | 增压透平膨胀机 |
DE102012209832B3 (de) * | 2012-06-12 | 2013-09-12 | E.G.O. Elektro-Gerätebau GmbH | Pumpe und Verfahren zum Herstellen eines Impellers für eine Pumpe |
WO2014020732A1 (ja) * | 2012-08-01 | 2014-02-06 | 三菱重工業株式会社 | 圧縮機用インペラの製造方法および圧縮機用インペラ |
KR102073766B1 (ko) * | 2012-11-26 | 2020-02-05 | 보르그워너 인코퍼레이티드 | 배기가스 터보차저의 레이디얼 압축기의 압축기 휠 |
CN102990302B (zh) * | 2012-11-30 | 2016-04-13 | 杭州杭氧透平机械有限公司 | 一种小流量闭式三元叶轮的加工方法 |
JP5612136B2 (ja) | 2013-01-09 | 2014-10-22 | ファナック株式会社 | 複数の直線により形状が定義されるインペラの形成方法およびインペラ |
CN103521736A (zh) * | 2013-03-29 | 2014-01-22 | 洛阳洛北重工机械有限公司 | 一种叶轮压铸模具 |
CN103195750A (zh) * | 2013-04-22 | 2013-07-10 | 无锡科博增压器有限公司 | 高效压气机叶轮 |
KR101490320B1 (ko) * | 2013-09-12 | 2015-02-06 | 주식회사 하우스일렉 | 핸드믹서기용 분쇄통의 분쇄날을 제조하기 위한 사출금형 및 이를 이용한 분쇄날 제조방법 |
KR101605684B1 (ko) | 2014-02-24 | 2016-03-23 | 에이테크솔루션(주) | 곡진 날개들을 지닌 성형제품의 언더컷을 처리하는 장치 및 이 장치를 구비한 금형 |
TW201617016A (zh) * | 2014-11-14 | 2016-05-16 | 盈太企業股份有限公司 | 渦輪 |
WO2016086508A1 (zh) * | 2014-12-04 | 2016-06-09 | 北京有色金属研究总院 | 半固态压叶轮模具和成形方法 |
CN105710315B (zh) * | 2014-12-04 | 2017-09-19 | 北京有色金属研究总院 | 一种压叶轮的铸造方法 |
JP1523931S (ja) * | 2014-12-19 | 2015-05-18 | ||
GB201500713D0 (en) | 2015-01-16 | 2015-03-04 | Cummins Ltd | A method for manufacturing a turbine wheel |
CA2978685C (en) | 2015-03-06 | 2019-02-12 | Honda Motor Co., Ltd. | Method for manufacturing impeller |
USD762840S1 (en) * | 2015-03-17 | 2016-08-02 | Wilkins Ip, Llc | Impeller |
CN105479114A (zh) * | 2015-12-29 | 2016-04-13 | 北京无线电测量研究所 | 一种薄壁构件防变形加工方法 |
US20170347487A1 (en) * | 2016-05-25 | 2017-11-30 | Andreas Rudnicki | Reverse flow microstructure water cooling unit with included pump for cooling of an electrical or electronic component |
CN106862485B (zh) * | 2017-02-22 | 2019-03-12 | 江苏汤臣汽车零部件有限公司 | 一种载重汽车液力缓速器叶轮蜡模加工*** |
USD847861S1 (en) * | 2017-03-21 | 2019-05-07 | Wilkins Ip, Llc | Impeller |
WO2018230714A1 (ja) * | 2017-06-16 | 2018-12-20 | 株式会社Ihi | 車両過給機用frpインペラ |
CN108678993A (zh) * | 2018-04-23 | 2018-10-19 | 国泰达鸣精密机件(深圳)有限公司 | 一种高转速叶轮结构及其加工方法 |
CN110216850B (zh) * | 2019-07-12 | 2024-06-25 | 福建上润精密仪器有限公司 | 叶轮注塑抽芯机构 |
CN111001784B (zh) * | 2019-12-10 | 2021-03-05 | 株洲凯丰实业股份有限公司 | 涡流器型芯模具 |
KR102225257B1 (ko) * | 2020-08-27 | 2021-03-09 | 주식회사 나진 | 임펠러 성형금형 |
CN112676768B (zh) * | 2020-11-16 | 2023-07-11 | 中国航发西安动力控制科技有限公司 | 复杂自由曲面叶轮的cam加工编程方法及专用加工刀具 |
CN112560192B (zh) * | 2020-12-04 | 2024-03-08 | 江苏源清动力技术有限公司 | 一种航改燃气轮机涡轮导向叶片模具收缩率的设计方法 |
CN112776273B (zh) * | 2020-12-25 | 2022-07-05 | 咸阳勃力模具制造有限公司 | 一种用于叶轮模具的自动开模机构 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4284124A (en) | 1978-07-06 | 1981-08-18 | Nissan Motor Co., Ltd. | Die casting machine for manufacturing heat resistant impellers |
JPH02187243A (ja) * | 1989-01-11 | 1990-07-23 | Hitachi Ltd | めねじ成形ダイカスト法 |
GB2402991A (en) | 2003-06-18 | 2004-12-22 | Komatsu Mfg Co Ltd | Rotor of turbo machine with integral threaded shaft stud for shaft coupling |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57171004A (en) | 1981-04-13 | 1982-10-21 | Nikkei Giken:Kk | Manufacture of impeller |
JPS5870961A (ja) | 1981-10-22 | 1983-04-27 | Nissan Motor Co Ltd | 耐熱羽根車のダイカスト方法 |
JPS58170899A (ja) * | 1982-03-31 | 1983-10-07 | Honda Motor Co Ltd | ラジアル型翼車 |
JPS61291941A (ja) * | 1985-06-19 | 1986-12-22 | Taiho Kogyo Co Ltd | Si含有量が高いAl鋳造合金 |
JPH07100211B2 (ja) | 1987-01-08 | 1995-11-01 | 日産自動車株式会社 | 羽根状回転体の成形型 |
JPH066226B2 (ja) * | 1988-08-31 | 1994-01-26 | 本田技研工業株式会社 | 羽根車の鋳造方法および鋳造装置 |
KR920009858B1 (ko) * | 1989-03-20 | 1992-11-02 | 산코우 고오세이 쥬시 가부시끼가이샤 | 크로스 플로우 팬(cross flow FAN)의 일체성형법 및 일체성형 가능한 크로스 플로우 팬 |
US4975041A (en) * | 1989-05-18 | 1990-12-04 | Fries Steven L | Die assembly for die casting a propeller structure |
JP2975198B2 (ja) * | 1991-11-12 | 1999-11-10 | 東芝機械株式会社 | ダイカストマシンの射出制御方法及びモニタ画面表示方法 |
US5860468A (en) * | 1993-07-28 | 1999-01-19 | Cook; Arnold J. | Vacuum die casting |
NO950843L (no) * | 1994-09-09 | 1996-03-11 | Ube Industries | Fremgangsmåte for behandling av metall i halvfast tilstand og fremgangsmåte for stöping av metallbarrer til bruk i denne fremgangsmåte |
JP3415987B2 (ja) | 1996-04-04 | 2003-06-09 | マツダ株式会社 | 耐熱マグネシウム合金成形部材の成形方法 |
US6019927A (en) * | 1997-03-27 | 2000-02-01 | Galliger; Nicholas | Method of casting a complex metal part |
JPH11264078A (ja) * | 1998-03-18 | 1999-09-28 | Hitachi Ltd | Mg合金部材及びその用途とその処理液及びその製造法 |
TW533277B (en) * | 1998-05-13 | 2003-05-21 | Matsushita Electric Ind Co Ltd | Electric fan and electric cleaner using the electric fan |
JP2000213493A (ja) | 1999-01-26 | 2000-08-02 | Sharp Corp | 羽根車及びその製造方法 |
KR100369919B1 (ko) * | 1999-03-03 | 2003-01-29 | 미쓰비시덴키 가부시키가이샤 | 팬, 팬의 용융금속 성형방법 및 팬의 용융금속 성형장치 |
JP4331321B2 (ja) | 1999-05-31 | 2009-09-16 | 森精機興産株式会社 | 旋削加工用工作機械における棒状工作物支持装置および支持方法 |
JP2000343201A (ja) * | 1999-06-03 | 2000-12-12 | Mitsui Mining & Smelting Co Ltd | マグネシウム合金のダイカスト鋳造法及びダイカスト製品 |
JP3603706B2 (ja) * | 1999-12-03 | 2004-12-22 | 株式会社日立製作所 | 高強度Mg基合金とMg基鋳造合金及び物品 |
JP4038010B2 (ja) | 2000-10-12 | 2008-01-23 | 株式会社安来製作所 | 射出成形用金型 |
DE50009878D1 (de) * | 2000-10-27 | 2005-04-28 | Frech Oskar Gmbh & Co Kg | Warmkammerdruckgiessmaschine und Betriebsverfahren hierfür |
US6663347B2 (en) | 2001-06-06 | 2003-12-16 | Borgwarner, Inc. | Cast titanium compressor wheel |
JP2004122146A (ja) * | 2002-09-30 | 2004-04-22 | Aisin Keikinzoku Co Ltd | 厚肉製品の高圧鋳造法 |
JP2004291032A (ja) | 2003-03-27 | 2004-10-21 | Sumitomo Heavy Ind Ltd | ドレイン装置付き溶融金属成形機 |
CA2432831A1 (en) | 2003-06-20 | 2004-12-20 | Peter G. Mokry | An impeller and a supercharger for an internal combustion engine |
DE10335260A1 (de) * | 2003-08-01 | 2005-02-17 | Daimlerchrysler Ag | Sekundärluftfördereinrichtung für eine Brennkraftmaschine |
JP4589630B2 (ja) * | 2004-01-09 | 2010-12-01 | 健司 東 | ダイカスト用マグネシウム合金及びマグネシウムダイカスト製品 |
WO2005116454A1 (ja) * | 2004-05-28 | 2005-12-08 | Hmy, Ltd. | 過給機用羽根車およびその製造方法 |
-
2006
- 2006-02-21 WO PCT/JP2006/303066 patent/WO2006090702A1/ja active Application Filing
- 2006-02-21 JP JP2007504727A patent/JP4523032B2/ja not_active Expired - Fee Related
- 2006-02-21 EP EP06714206A patent/EP1854570A4/en not_active Withdrawn
- 2006-02-21 US US11/574,661 patent/US8021117B2/en not_active Expired - Fee Related
- 2006-02-21 WO PCT/JP2006/303062 patent/WO2006090701A1/ja active Application Filing
- 2006-02-21 JP JP2007504726A patent/JP4833961B2/ja not_active Expired - Fee Related
- 2006-02-21 CN CNB2006800007004A patent/CN100548533C/zh not_active Expired - Fee Related
- 2006-02-21 KR KR1020077004775A patent/KR100838675B1/ko not_active IP Right Cessation
- 2006-02-21 US US11/574,658 patent/US8678769B2/en not_active Expired - Fee Related
- 2006-02-21 KR KR1020077004776A patent/KR100829880B1/ko not_active IP Right Cessation
- 2006-02-21 CN CN200680000699A patent/CN100577327C/zh not_active Expired - Fee Related
- 2006-02-21 EP EP06714202.6A patent/EP1857203B1/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4284124A (en) | 1978-07-06 | 1981-08-18 | Nissan Motor Co., Ltd. | Die casting machine for manufacturing heat resistant impellers |
JPH02187243A (ja) * | 1989-01-11 | 1990-07-23 | Hitachi Ltd | めねじ成形ダイカスト法 |
GB2402991A (en) | 2003-06-18 | 2004-12-22 | Komatsu Mfg Co Ltd | Rotor of turbo machine with integral threaded shaft stud for shaft coupling |
JP2005030382A (ja) * | 2003-06-18 | 2005-02-03 | Komatsu Ltd | ターボ機械の圧縮装置及びそのコンプレッサインペラ |
Non-Patent Citations (1)
Title |
---|
See also references of EP1857203A4 * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8292589B2 (en) | 2006-06-29 | 2012-10-23 | Hitachi Metals Precision, Ltd. | Casting aluminum alloy, cast compressor impeller comprising the alloy, and process for producing the same |
JP2008303740A (ja) * | 2007-06-05 | 2008-12-18 | Kawamoto Pump Mfg Co Ltd | 給水ポンプのインペラ及びインペラの製造方法 |
JP2012529585A (ja) * | 2009-06-08 | 2012-11-22 | マン・ディーゼル・アンド・ターボ・エスイー | 圧縮機インペラ |
CN104989665A (zh) * | 2015-06-09 | 2015-10-21 | 昆山广禾电子科技有限公司 | 轻小镁铝合金风扇的制程工艺 |
US11028856B2 (en) | 2016-05-09 | 2021-06-08 | Ihi Corporation | Centrifugal compressor impeller |
EP3527831A4 (en) * | 2016-10-12 | 2020-05-20 | Enplas Corporation | INJECTION MOLDED WING WHEEL |
CN110005635A (zh) * | 2019-01-28 | 2019-07-12 | 天津大学 | 一种叶轮的设计方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1857203A1 (en) | 2007-11-21 |
JPWO2006090702A1 (ja) | 2008-07-24 |
CN101010158A (zh) | 2007-08-01 |
JPWO2006090701A1 (ja) | 2008-07-24 |
WO2006090702A1 (ja) | 2006-08-31 |
CN100548533C (zh) | 2009-10-14 |
US8678769B2 (en) | 2014-03-25 |
EP1857203B1 (en) | 2013-05-15 |
EP1857203A4 (en) | 2012-03-28 |
EP1854570A4 (en) | 2012-03-28 |
CN101010157A (zh) | 2007-08-01 |
KR20070088494A (ko) | 2007-08-29 |
JP4523032B2 (ja) | 2010-08-11 |
KR20070083521A (ko) | 2007-08-24 |
EP1854570A1 (en) | 2007-11-14 |
US8021117B2 (en) | 2011-09-20 |
KR100829880B1 (ko) | 2008-05-16 |
US20090274560A1 (en) | 2009-11-05 |
US20090252609A1 (en) | 2009-10-08 |
JP4833961B2 (ja) | 2011-12-07 |
KR100838675B1 (ko) | 2008-06-16 |
CN100577327C (zh) | 2010-01-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2006090701A1 (ja) | 過給機用羽根車およびその製造方法 | |
JP4469370B2 (ja) | 過給機用羽根車およびその製造方法 | |
EP1267084B1 (en) | Cast titanium compressor wheel | |
EP1361008B1 (en) | Hybrid method for manufacturing titanium compressor wheel | |
US6754954B1 (en) | Process for manufacturing forged titanium compressor wheel | |
EP3429778B1 (en) | Method of manufacturing advanced features in a core for casting | |
JP2010270645A (ja) | インペラの製造方法 | |
US20160158834A1 (en) | Castings and Manufacture Methods | |
JP2002113749A (ja) | 射出成形用金型 | |
WO2010134569A1 (ja) | インペラホイール、ターボチャージャ、及び、インペラホイールの製造方法 | |
US20110182726A1 (en) | As-cast shroud slots with pre-swirled leakage |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2007504726 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200680000699.5 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020077004775 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006714202 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1727/DELNP/2007 Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 11574661 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWP | Wipo information: published in national office |
Ref document number: 2006714202 Country of ref document: EP |