WO2000005008A1 - Procede de forgeage par matrices - Google Patents
Procede de forgeage par matrices Download PDFInfo
- Publication number
- WO2000005008A1 WO2000005008A1 PCT/JP1999/003964 JP9903964W WO0005008A1 WO 2000005008 A1 WO2000005008 A1 WO 2000005008A1 JP 9903964 W JP9903964 W JP 9903964W WO 0005008 A1 WO0005008 A1 WO 0005008A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- die
- forging
- punch
- forming
- forged material
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
- B21C37/29—Making branched pieces, e.g. T-pieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/12—Forming profiles on internal or external surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/02—Special design or construction
- B21J9/027—Special design or construction with punches moving along auxiliary lateral directions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/20—Making machine elements valve parts
Definitions
- the present invention relates to a die forging method. Problems to be solved by conventional technologies and inventions
- Japanese Patent Application Laid-Open No. 55-1565661 discloses that an inner punch and an outer punch (hollow die pin) can be independently driven for the lower and upper dies for forging and forming metal molded products.
- a molding technology that improves the quality of products by improving the flow of materials by forming with upper and lower dies and upper and lower punches and then forming with upper and lower inner punches is disclosed. Have been.
- Japanese Patent Application Laid-Open No. 58-84663-2 describes a closed die forging method using superplastic metal.However, in this forging method, there is a value at which a forming force occurs during forging. At this point, by moving the movable part provided in a part of the mold, a filling space is formed inside the mold, excess metal flows into the space, and this excess part is removed later. There is a statement that the dimensional accuracy is improved by and.
- Japanese Patent Application Laid-Open No. H1-2222686 discloses a forging method in which a part of a forging material is extended laterally in a pre-forging step, and an extended part is formed in a post-forging step. In this method, both steps use separate molds.
- Japanese Unexamined Patent Publication No. 2 (1995) -274741 discloses a forging method in which a forged material is extended laterally and a gear is formed at the tip of the overhang.
- Japanese Patent Application Laid-Open No. Hei 4-179734 describes that the backing pressure causes the die pins to retract.
- a forging method is disclosed in which a deep hole is formed by punching a forged material while punching.
- Japanese Patent Application Laid-Open No. Hei 4-344845 discloses a method of forging while gradually increasing the back pressure.
- Japanese Patent Application Laid-Open No. Hei 7 — 2 3 6 9 3 7 discloses that forging material is first compressed by upper and lower dies to form an overhanging part, and then a punch is driven into the forging material to overhang. A method of forming a gear at the tip of the portion while further extending the portion laterally is disclosed.
- An object of the present invention is to provide a die forging method having features such as high productivity and high molding accuracy. Means and actions to solve the problem ⁇ Effect
- a mold forging method is a mold forging method in which a forged material is plastically flowed by being pressed in a forging die to form a predetermined shape;
- the pre-forging process and the subsequent hole forming process are performed using the mold described above, and the pre-forging process is performed by forging so that at least a part of the forging material is filled in the cavity of the mold.
- the die bin is pressed against one end surface of the forged material and backed under back pressure, and punched into the forged material. Into the hole to form a hole.
- a mold forging method comprising: performing a pre-forging step and a subsequent hole forming step using the same mold; obtaining a partial shape of a molded product in the pre-forging step; In step, a punch is punched into the forged material while the die pin is being pressed against one end surface of the forged material and backed down, and a hole is formed in the forged material.
- the feature is that there is not.
- the die pins are moved in the pre-forging process.
- the die pin is not moved until the outer shape of the molded product is completed, so that forging can be performed stably and at the same time. Forging process The shape of the molded part can be created accurately.
- a hole forming step and a subsequent forging step are performed by using the same die, and in the hole forming step, a die pin is applied to one end surface of the forged material, and a back pressure is applied.
- a hole is formed by driving a punch into the forged material while being retracted in a state where the forged material is applied, and at least a part of the forged material is forged in the post-forging process. It is characterized in that a part of the shape is obtained.
- JP-A-55-156631, JP-A-4-344845 does not have a separate forging step after the hole forming step.
- complicated and diverse forming can be performed in the post-forging process.
- a hole forming step and a forging step before or after the hole forming step are performed using the same mold, and a die bin is applied to one end surface of the forged material in the hole forming step. While retracting under back pressure, a hole is formed by driving a punch into the forged material.
- the above die pin is basically piled at the forming pressure of the forged material and Is characterized by being held so as not to retreat.
- the pressing force of a punch for pressure molding is changed depending on the process.
- the punch is not pressed into a forged material.
- the holding force of the dice pin dedicated to back pressure is changed.
- a hole is formed by punching a punch into the forged material while retracting the die pin against one end surface of the forged material under back pressure. Including a hole forming step, the punch is driven from a direction other than the retreating direction of the die pin or the reverse direction.
- the punching direction is opposite to the retreat direction of the die spin, while in JP-A-4-1344845, the punching direction is limited to the same direction:
- a punch is driven from a direction other than the retreating direction of the die pin or the reverse direction, so that a product having a complex and diverse shape such as cheese can be formed.
- a mold forging method comprising: combining a mold for forging the outer shape of a molded article with a punch for molding a concave portion of the molded article; Also, during forging, the diespin is retracted while applying back pressure.
- Products with various shapes can be molded.
- a mold forging method in which a plurality of punches forming a plurality of recesses are pressed against a forging material from the same direction to perform forging, and a spinning is performed during forging.
- the feature is that the back pressure is retreated while applying force.
- Japanese Unexamined Patent Publication No. 55-1565661 there are one upper and lower bunches for forming the recess.
- forging is performed by pressing a punch that forms a plurality of concave portions against the forging material from the same direction, so that a complex and diverse structure such as a stepped deep hole is performed. Shaped products can be molded.
- the molding may be performed using the above-described die and punch at different timings.
- a plurality of punches may be formed at different timings.
- a plurality of punches are simultaneously driven from different directions into a forging material to perform molding, and back pressure is applied to a die pin during forging. From the back.
- a die forging method wherein a hammer is driven into the forged material or a die is pressed while the die bin is pressed against one end surface of the forged material and retreated under a back pressure. It includes a step of forming a plurality of dies and forming a plurality of holes. And:
- a product having a complicated shape having a large number of holes such as a multi-header, can be formed.
- the plurality of die pins are sequentially operated with a time difference so that the plurality of holes are sequentially formed. Rather than simultaneously operating pins and forming multiple holes at the same time, the flow of material is simpler, reducing defects such as entrapment and underfilling.
- a die forging method wherein a punch or a die is pressed against the forged material in a state where a die pin is applied to one end surface of the forged material and pressure is applied. Including a step of forging to advance to a predetermined position and in this step, if the mold internal pressure is lower than the predetermined pressure, the die pin is not retracted, and if the mold internal pressure exceeds the predetermined pressure, the die pin It is characterized by retreating.
- Japanese Patent Laid-Open No. 55 — 1 5 6 6 3 1 and Japanese Patent Laid-Open No. Hei 4-34,849, and Japanese Patent Laid-Open No. Hei 4-179734 have the idea of letting excess forged material escape. Absent:
- Japanese Patent Application Laid-Open No. 58-846432 describes a closed die forging method using a superplastic metal.
- the forming force during forging is a certain value.
- the movable portion provided in a part of the mold is moved to form a filling space inside the mold, and excess metal is allowed to flow into this space, and the excess part is removed later.
- the mold is not in a closed state (full state) when the surplus part flows into the filling gap.
- the die spin is retracted in response to the pressure of the material in the die, that is, the die bin is retracted while maintaining the closed state.
- a hole is formed by driving a bunch into the forged material while retracting the die pin against one end surface of the forged material under back pressure. Including a hole forming step, an uneven portion is provided on an end face of the die pin for applying a back pressure, and a part of the product shape is formed by the uneven portion.
- the end surface that gives the back pressure of the die spin is a flat surface without any irregularities.
- a convex part and a concave part can be formed on the forming surface, and a forged product having a complex and diverse shape can be obtained.
- a mold forging method comprising: an overhanging step of forming an overhanging portion by forging; a forming step of further forging the overhanging portion to form a predetermined shape; And performing the above two steps in the same mold.
- the overhanging step and the forming step are performed using different molds.
- a punch or a mold is not pressed into the overhanging part, and is formed only by overhanging. I have.
- the overhanging portion overhanging in the overhanging process is forged by a punch or the like in the forming process, so that only the overhanging is performed. Better filling of material than forming with.
- the overhanging process and the molding process are performed in the same mold, the number of types of the mold can be reduced, and the cost of the mold can be reduced.
- a die forging method comprising: an overhanging step of forming an overhanging portion by forging; and a forming step of further forging the overhanging portion to form a predetermined shape. And extending the overhanging portion in the same or opposite direction as forging in the overhanging process.
- the overhanging portion extends laterally in the forging direction.
- “in the same direction or in the opposite direction to forging” refers to a process in which a part of a forged material is projected in the same direction as the movement of a die or a pin during forging or in the opposite direction. And. According to this die forging method, complicated and diverse forged products can be obtained.
- a mold forging method comprising: an overhanging step of forming an overhang portion by forging; a forming step of further forging the overhang portion to form a predetermined shape; And forging the forged material a plurality of times in the overhanging step.
- the upper and lower bunches are simultaneously pushed to protrude.
- the forging material is forged a plurality of times in the overhanging process, whereby all overhangs are formed by one forging. In comparison with, the overhang can be formed more smoothly, so that the overhang does not produce burrs.
- a die forging method in which a forging material is processed by a second punch or a die without retreating the first punch in parallel with driving the first punch into the forging material. According to the die forging method of this aspect of the present invention, there is an advantage that a portion formed by the first punch does not collapse.
- a hole is formed by driving a first bunch into a forged material, and after the hole forming is completed, the hole is formed by a second punch or die without removing the punch. Characterized by forging
- a die forging method is a die forging method in which a forging material is plastically flowed by being pressed in a forging die to form a predetermined shape; A first step for defining the cavities laterally, and pressing the forged material from the other end of the forged material so as to protrude the one end of the forged material. A second step of filling the inside of the cavity to form the outer shape of the same, thereby obtaining an overhanging body; and, after the second step, after the second step, the end face of the one end is formed. A third step of punching a punch in the overhanging body in the axial direction to form a recess in the overhanging body.
- the overhang and the recess on the forged material By continuously forming the overhang and the recess on the forged material, material yield, productivity and molding accuracy are improved, and forging defects are less likely to occur. Yes The shape of the overhang can be accurately formed.
- a second recess which is larger in diameter and shallower than the first recess is formed in the overhang portion by using the second punch arranged on the outer periphery of the punch. It may be formed continuously. In this case, the flow inhibition of the material which occurs when the first and second concave portions are formed at the same time does not occur, and it is possible to prevent the overhanging portion from being cut off.
- Et al is, die roll a part of the pin provided outs Ri switching, simultaneously with the molding of the tension out by unit, Ru can and this molding the protrusion in a part of the end surface of the forging material c
- a die forging method in which a forging material is pressed in a forging die to cause a plastic flow to be formed into a predetermined shape.
- B step for forming a second concave portion having a diameter larger than the concave portion and shallower than the concave portion is further provided on the end face by using the punch, and the other end of the forged material is provided in the above-mentioned step.
- the method is characterized in that the method includes retreating the die bin abutting on the back while applying back pressure.
- the volume of the recessed part of the forging material is pushed up in the direction opposite to the punch, and the forging material flows continuously and smoothly, so that there is no generation of minute cracks in the product.
- the pressing force of the punch may be made substantially equal to the material processing force, the depth of the concave portion can be freely set without the buckling of the punch.
- a mold forging method in which a forged material is plastically flowed by being pressed in a forging die, and is formed into an overall shape having a convex portion with an undercut.
- a die forging method is a die forging method in which a forged material is plastically flowed by being pressed in a forging die to form a molded product having a topped cylindrical shape.
- a cylindrical portion is formed in the above forged material while applying back pressure to the cylindrical portion end surface while forming the outer peripheral surface of the cylindrical portion with a die scan surface.
- a step where the punch is pushed into the center and pushed backward to form, and the above-mentioned bunch used to form the cylindrical part is removed first when removing the molded product
- a C step for removing the molded product from a die used for molding the outer peripheral surface of the cylindrical portion after the B step.
- FIG. 1 is a diagram schematically showing a structure of a brass flush metal fitting formed by a die forging method according to one embodiment of the present invention.
- FIG. 1 (A) is a plan view
- FIG. 1 (B) Is a side sectional view
- FIG. 1 (C) is a perspective view.
- FIG. 2 is a cross-sectional view schematically illustrating an apparatus for forging the tip metal fitting of FIG. 1 and a forging process.
- FIG. 3 is a cross-sectional view schematically showing an apparatus for forging the tip metal fitting of FIG. 1 and a forging process.
- FIG. 4 is a cross-sectional view schematically showing an apparatus for forging the metal fittings of the bout of FIG. 1 and a forging process.
- FIG. 5 is a diagram schematically showing a configuration of a hydraulic control system of the brass forging device shown in FIGS. 2, 3, and 4.
- FIG. 6 is an enlarged sectional view showing details of the lower die 11, the upper die 17 and the forging material 3 A of the brass material forging device 10 shown in FIGS. 2 to 4.
- Fig. 7 shows the lower die 1 1 of the brass forging device 10 shown in Figs. 1 2
- FIG. 8 is an enlarged sectional view showing details of the upper die 17 and the forging material 3A:
- FIG. 8 shows a lower die 11 of the brass forging device 10 shown in FIGS. It is sectional drawing which expands and shows the detail of forging material 3A.
- FIG. 9 is an enlarged sectional view showing details of the lower die 11, the upper die 17 and the forging material 3 A of the brass material forging device 10 shown in FIGS. 2 to 4.
- Fig. 10 is a stroke diagram of dies and punches during forging.
- FIG. 11 is a sectional view showing the structure of a pedestal formed by the die forging method according to the second embodiment of the present invention.
- Fig. 12 is a cross-sectional view showing an intermediate forged product of the pedestal of Fig. 11 c
- Fig. 13 is a cross-sectional view schematically showing an apparatus and a forging process for forging the intermediate forged product of the pedestal of Fig. 12 is there.
- FIG. 14 is a cross-sectional view schematically showing an apparatus for forging the pedestal intermediate forged product of FIG. 12 and a forging process.
- FIG. 1155 is a cross-sectional view schematically showing an apparatus for forging the pedestal intermediate forging of FIG. 12 and a forging process.
- FIG. 16 is a cross-sectional view schematically showing an apparatus for forging the pedestal intermediate forging of FIG. 12 and a forging process.
- FIG. 17 is a cross-sectional view schematically showing an apparatus for forging the pedestal intermediate forging of FIG. 12 and a forging process.
- FIG. 18 is a view showing a structure of an impeller according to a third embodiment of the present invention, wherein FIG. 18 (A) is a plan view and FIG. 18 (B) is a sectional view.
- FIG. 19 is a diagram showing the structure of the intermediate forged product of the impeller of FIG. 18.
- FIG. 19 (A) is a plan view
- FIG. 19 (B) is a cross-sectional view.
- FIG. 20 is a cross-sectional view schematically illustrating an apparatus for forging the impeller intermediate forged product of FIG. 19 and a forging process.
- Fig. 21 shows the device and forging for forging the impeller intermediate forging of Fig. 19.
- C as the E is a cross-sectional view schematically showing
- FIG. 22 is a cross-sectional view schematically showing an apparatus for forging the impeller intermediate forged product of FIG. 19 and a forging process.
- FIG. 23 is a cross-sectional view schematically illustrating an apparatus for forging the impeller intermediate forged product of FIG. 19 and a forging process.
- FIG. 24 is a cross-sectional view schematically showing an apparatus for forging the impeller intermediate forged product of FIG. 19 and a forging process.
- FIG. 25 is a cross-sectional view schematically illustrating an apparatus for forging the impeller intermediate forged product of FIG. 19 and a forging process.
- FIG. 26 is a cross-sectional view schematically showing an apparatus for forging the impeller intermediate forged product of FIG. 19 and a forging process.
- FIG. 27 is a cross-sectional view schematically showing an apparatus and a forging process according to another embodiment for forging the impeller intermediate forged product of FIG.
- FIG. 28 is a cross-sectional view schematically showing an apparatus and a forging process according to another embodiment for forging the impeller intermediate forged product of FIG.
- FIG. 29 is a cross-sectional view schematically showing an apparatus and a forging process according to another embodiment for forging the impeller intermediate forged product of FIG.
- FIG. 30 is a cross-sectional view schematically illustrating an apparatus and a forging process according to another embodiment for forging the impeller intermediate forged product of FIG. 19.
- FIG. 31 is a cross-sectional view schematically illustrating an apparatus and a forging process according to another embodiment for forging the impeller intermediate forged product of FIG. 19.
- FIG. 32 is a cross-sectional view schematically illustrating an apparatus and a forging process according to another embodiment for forging the impeller intermediate forged product of FIG. 19.
- FIG. 33 is a cross-sectional view schematically showing an apparatus and a forging process according to another embodiment for forging the impeller intermediate forged product of FIG.
- FIG. 34 is a cross-sectional view schematically showing an apparatus and a forging process according to another embodiment for forging the impeller intermediate forged product of FIG. 19.
- FIG. 35 is a cross-sectional view schematically showing an apparatus for forging the impeller intermediate forged product of FIG. 19 and a curtain making process according to another embodiment.
- FIG. 36 is a cross-sectional view schematically showing an apparatus and a forging process according to another embodiment for forging the impeller intermediate forged product of FIG.
- FIG. 37 is a cross-sectional view schematically illustrating an apparatus and a forging process according to another embodiment for forging the impeller intermediate forged product of FIG. 19.
- FIG. 38 is a diagram showing the structure of a water meter formed by the die forging method according to the sixth embodiment of the present invention.
- FIG. 38 (A) is a front sectional view
- FIG. FIG. 8 (B) is a partial cross-sectional plan view.
- FIG. 39 is a diagram showing the structure of the intermediate forged product of the water meter in FIG. 38.
- FIG. 39 (A) is a front sectional view
- FIG. 39 (B) is a partial sectional plan view. is there.
- FIG. 40 is a diagram schematically showing an apparatus for forging the intermediate forged product of the water meter shown in FIG. 39 and a forging process.
- FIG. 41 is a diagram schematically showing an apparatus for forging the intermediate forged product of the water meter shown in FIG. 39 and a forging process.
- FIG. 42 is a diagram schematically showing an apparatus for forging the intermediate forged product of the water meter shown in FIG. 39 and a forging process.
- FIG. 43 is a diagram schematically showing an apparatus for forging the intermediate forged product of the water meter shown in FIG. 39 and a forging process.
- FIG. 44 is a diagram schematically showing an apparatus for forging the intermediate forged product of the water meter shown in FIG. 39 and a forging process.
- FIG. 45 is a diagram schematically showing an apparatus for forging the intermediate forged product of the water meter shown in FIG. 39 and a forging process.
- FIG. 46 is a diagram schematically illustrating an apparatus for forging the intermediate forged product of the water meter shown in FIG. 39 and a forging process.
- Fig. 47 shows the equipment for forging the intermediate forging of the water meter shown in Fig. 39 and It is a figure which shows a forging process typically.
- FIG. 48 is a diagram schematically showing an apparatus for forging the intermediate forged product of the water meter shown in FIG. 39 and a forging process.
- FIG. 49 is a diagram showing an SCC resistance test apparatus.
- FIG. 50 is a diagram showing an eco-resistance testing apparatus.
- Fig. 51 is a graph showing the results of the one-way mouth-to-mouth test.
- FIG. 52 is a diagram showing the structure of a discarded shaft formed by the die forging method according to the seventh embodiment of the present invention.
- FIG. 52 (A) is a perspective view
- FIG. 52 (B). Is a sectional view.
- FIG. 53 is a view showing the structure of the intermediate forging of the discarded shaft of FIG. 52, where FIG. 53 (A) is a perspective view and FIG. 53 (B) is a cross-sectional view.
- FIG. 54 is a cross-sectional view schematically showing an apparatus for forging the intermediate shaft forged product of FIG. 53 and a forging process.
- FIG. 55 is a cross-sectional view schematically showing an apparatus for forging the intermediate shaft forged product of FIG. 53 and a forging process.
- FIG. 56 is a cross-sectional view schematically showing an apparatus for forging the forged shaft intermediate forged product of FIG. 53 and a forging process.
- FIG. 57 is a view showing the structure of a discarded shaft formed by the die forging method according to the eighth embodiment of the present invention.
- FIG. 57 (A) is a perspective view
- FIG. 57 (B). Is a sectional view.
- FIG. 58 is a view showing the structure of the intermediate forging of the discarded shaft of FIG. 57, where FIG. 58 (A) is a perspective view and FIG. 58 (B) is a cross-sectional view.
- FIG. 59 is a cross-sectional view schematically showing an apparatus for forging the forged shaft intermediate forged product of FIG. 58 and a forging process.
- FIG. 60 is a cross-sectional view schematically showing an apparatus for forging the forged shaft intermediate forged product of FIG. 58 and a forging process.
- Fig. 61 shows the apparatus and forging for forging the intermediate shaft forged product shown in Fig. 58. It is sectional drawing which shows a process typically.
- FIG. 62 is a cross-sectional view schematically showing an apparatus for forging the intermediate shaft forged product of FIG. 58 and a forging process.
- FIG. 63 is a view showing the structure of a hand shower support fitting formed by the die forging method according to the ninth embodiment of the present invention.
- FIG. 63 (A) is a plan sectional view
- FIG. 3 (B) is a side sectional view.
- 'FIG. 64 is a cross-sectional view schematically showing an apparatus for forging the hand shower support of FIG. 63 and a forging process.
- FIG. 65 is a cross-sectional view schematically showing an apparatus for forging the hand shower support of FIG. 63 and a forging process.
- FIG. 66 is a sectional view schematically showing an apparatus for forging the hand shower support of FIG. 63 and a forging process.
- FIG. 67 is a cross-sectional view schematically showing an apparatus for forging the hand shower support of FIG. 63 and a forging process.
- FIG. 68 is a cross-sectional view schematically illustrating an apparatus for forging the hand shower support of FIG. 63 and a forging process.
- FIG. 69 is a cross-sectional view schematically showing an apparatus for forging the hand shower support of FIG. 63 and a forging process.
- FIG. 70 is a side cross-sectional view showing the structure of a flash valve lid formed by the die forging method according to the tenth embodiment of the present invention.
- FIG. 71 is a cross-sectional view schematically illustrating an apparatus for forging the hand shower support of FIG. 70 and a forging process.
- FIG. 72 is a cross-sectional view schematically showing an apparatus for forging the hand shower support of FIG. 70 and a forging process.
- FIG. 73 is a cross-sectional view schematically illustrating an apparatus for forging the hand shower support of FIG. 70 and a forging process.
- Fig. 74 shows the equipment for forging the hand shower support of Fig. 70 and 1 7
- FIG. 4 is a cross-sectional view schematically showing a forging process.
- FIG. 7 5 is a sectional view showing an apparatus ⁇ beauty forging step of forging the Han sediment word support bracket of FIG. 7 0 schematically c
- FIG. 76 is a cross-sectional view schematically illustrating an apparatus for forging the hand shower support of FIG. 70 and a forging process.
- FIG. 77 is a cross-sectional view schematically showing an apparatus for forging the hand-held support bracket of FIG. 70 and a forging process.
- FIG. 78 is a side cross-sectional view showing the structure of the H bush formed by the die forging method according to the first embodiment of the present invention.
- FIG. 79 is a cross-sectional view schematically showing an apparatus for forging the H bush of FIG. 78 and a forging process.
- FIG. 80 is a cross-sectional view schematically showing an apparatus for forging the H bush of FIG. 78 and a forging process.
- FIG. 81 is a side sectional view showing the structure of a cheese formed by the die forging method according to the 12th embodiment of the present invention.
- FIG. 82 is a cross-sectional view schematically showing an apparatus for forging the cheese of FIG. 81 and a forging process.
- FIG. 83 is a cross-sectional view schematically showing an apparatus for forging the cheese of FIG. 81 and a forging process.
- FIG. 84 is a cross-sectional view schematically illustrating an apparatus for forging the cheese of FIG. 81 and a forging process.
- FIG. 85 is a cross-sectional view schematically showing an apparatus for forging the cheese of FIG. 81 and a forging process.
- FIG. 86 is a cross-sectional view schematically showing an apparatus and a forging process for forging the cheese shown in FIG. 81.
- FIG. 87 is formed by the die forging method according to the thirteenth embodiment of the present invention. It is a side sectional view showing the structure of a multi-header. 1 8
- FIG. 88 is a cross-sectional view schematically showing an apparatus for forging the multi-header of FIG. 87 and a forging process.
- FIG. 89 is a cross-sectional view schematically showing an apparatus for forging the multi-header of FIG. 87 and a forging process.
- FIG. 90 is a cross-sectional view schematically showing an apparatus for forging the multi-camel of FIG. 87 and a forging process.
- FIG. 91 is an assembly view of a faucet apparatus according to the 14th embodiment of the present invention. You.
- FIG. 92 is a part drawing of the faucet device part of FIG. 1 which has been completed up to the cutting process.
- FIG. 92 (A) is a plan view
- FIG. 92 (B) is a longitudinal sectional view
- FIG. 93 shows the intermediate forging of the faucet component of Fig. 92.
- Fig. 93 (A) is a plan view
- Fig. 93 (B) is a longitudinal sectional view
- Fig. 93 (C) is a side view.
- FIG. 94 is a plan view schematically showing an apparatus for forging the intermediate forged product of the faucet device part of FIG. 93.
- FIG. 95 is a side sectional view schematically showing an apparatus for forging the intermediate forged product of the faucet device part of FIG. 93.
- FIG. 96 is a cross-sectional view schematically showing a step of forging an intermediate forged product of the faucet device part of FIG. 93.
- FIG. 97 is a cross-sectional view schematically showing a step of forging an intermediate forged product of the hydraulic equipment part of FIG. 93.
- FIG. 98 is a cross-sectional view schematically showing a step of forging an intermediate forged product of the faucet component of FIG. 93.
- FIG. 99 is a cross-sectional view schematically showing a process of forging an intermediate forged product of the faucet device part of FIG. 93.
- Figure 100 shows the process of forging the intermediate forging of the faucet equipment part of Figure 93. It is sectional drawing which shows a process typically.
- FIG. 101 is a diagram showing the structure of a shower hanger according to a fifteenth embodiment of the present invention, where FIG. 101 (A) is a perspective view, FIG. 101 (B) is a side view, FIG. 101 (C) is a front view, and FIG. 101 (D) is a plan view. 1 0 2 Mel an apparatus and forging steps for forging the Shah Wa one hanger of FIG. 1 0 1 a sectional view schematically showing c
- FIG. 103 is a cross-sectional view schematically showing an apparatus for forging the single hanger of FIG. 101 and a forging process.
- FIG. 104 is a cross-sectional view schematically showing an apparatus for forging the shower hanger of FIG. 101 and a manufacturing process.
- FIG. 105 is a sectional view schematically showing an apparatus for forging the shear hanger of FIG. 101 and a forging process.
- FIG. 106 is a cross-sectional view schematically showing an apparatus for forging the shower hanger of FIG. 101 and a forging process.
- FIG. 107 is a sectional view schematically showing an apparatus for forging the shower hanger of FIG. 101 and a forging process.
- FIG. 108 is a sectional view schematically showing an apparatus for forging the shower hanger of FIG. 101 and a forging process.
- FIG. 109 is a longitudinal sectional view showing the structure of the component X according to the sixteenth embodiment of the present invention.
- FIG. 110 is a diagram schematically showing an apparatus for forging the part X of FIG. 1 and a forging process.
- FIG. 11 is a diagram schematically showing an apparatus for forging the part X of FIG. 1 and a forging process.
- FIG. 1 12 is a diagram schematically illustrating an apparatus for forging the part X of FIG. 1 and a forging process.
- FIG. 11 is a diagram schematically illustrating an apparatus for forging the part X of FIG. 1 and a forging process.
- FIG. 114 is a diagram schematically showing an apparatus for forging the part X of FIG. 1 and a forging process.
- FIG. 115 is a diagram schematically showing an apparatus for forging the part X of FIG. 1 and a forging process.
- FIG. 116 is a diagram schematically showing an apparatus for forging the part X of FIG. 1 and a forging process.
- FIG. 117 schematically shows an apparatus for forging the part X of FIG. 1 and a forging process.
- FIG. 118 schematically shows an apparatus for forging the part X of FIG. 1 and a forging process.
- FIG. 119 is a view schematically showing an apparatus for forging the part X of FIG. 1 and a forging process.
- FIG. 120 is a longitudinal sectional view showing the structure of the component Y according to the seventeenth embodiment of the present invention.
- FIG. 121 is a diagram schematically illustrating an apparatus for forging the component Y of FIG. 120 and a forging process.
- FIG. 122 is a view schematically showing an apparatus for forging the component Y of FIG. 120 and a forging process.
- FIG. 123 is a diagram schematically showing an apparatus for forging the component Y of FIG. 120 and a forging process.
- FIG. 124 is a diagram schematically showing an apparatus for forging the component Y of FIG. 120 and a forging process.
- FIG. 125 is a diagram schematically showing an apparatus for forging the part Y of FIG. 120 and a forging process.
- Fig. 126 shows the equipment and forging process for forging part Y of Fig. 120. It is a figure which shows typically.
- FIG. 127 is a diagram schematically illustrating an apparatus for forging the component Y of FIG. 120 and a forging process.
- Fig. 128 is a diagram schematically showing an apparatus for forging the part Y of Fig. 120 and a forging process.
- FIG. 129 is a diagram schematically showing an apparatus for forging the component Y of FIG. 120 and a forging process.
- FIG. 130 is a diagram schematically illustrating an apparatus for forging the component Y of FIG. 120 and a forging process.
- FIG. 13 1 is a longitudinal sectional view showing the structure of a part Z according to a seventeenth embodiment of the present invention.
- FIG. 13 is a diagram schematically illustrating an apparatus for forging the part Z of FIG. 13 1 and a forging process.
- FIG. 13 is a diagram schematically showing an apparatus for forging the component Z of FIG. 13 1 and a forging process.
- FIG. 13 is a diagram schematically showing an apparatus for forging the part Z of FIG. 13 and a forging process.
- FIG. 135 is a diagram schematically showing an apparatus for forging the part Z of FIG. 131 and a forging process.
- FIG. 13 36 is a diagram schematically showing an apparatus for forging the part Z of FIG. 13 1 and a forging process.
- FIG. 13 7 is a diagram schematically showing an apparatus for forging the part Z of FIG. 13 1 and a forging process.
- FIG. 13 is a diagram schematically showing an apparatus for forging the part Z of FIG. 13 1 and a silver making process.
- FIG. 13 9 is a diagram schematically showing an apparatus for forging the part Z of FIG. 13 1 and a forging process.
- FIG. 140 is a diagram schematically showing an apparatus and a forging process for forging the part Z of FIG.
- FIG. 14 1 is a diagram schematically showing an apparatus for forging the part Z of FIG. 13 1 and a forging process.
- FIG. 1 is a diagram schematically showing a structure of a brass flush metal fitting formed by a die forging method according to one embodiment of the present invention.
- FIG. 1 (A) is a plan view
- FIG. 1 (B) Is a side sectional view
- FIG. 1 (C) is a perspective view.
- the faucet fittings installed in kitchens and bathrooms are equipped with components called spats.
- a brass spat fitting 3 is attached inside the vicinity of the spat tip.
- the upper end portion of the brass spat tip fitting 3 in this example is a substantially D-shaped fitting portion 4.
- a guide inclined surface 4 a is formed at an end edge of the fitting portion 4.
- the front end fitting 3 has a flange portion 5 slightly larger in diameter than the fitting portion 4, a stepped fitting portion 6, and an uneven portion extending downward from the stepped fitting portion 6. 7 and are integrally formed.
- the concavo-convex portion 7 is a relatively small-diameter, bottomed cylindrical shape having a convex portion 7b having a circular cross section and a concave portion 7 inside the convex portion 7b.
- the convex portion 7b is formed on the extension of the concave portion forming direction at the same time as the concave portion 7a is formed.
- the portion other than the concave and convex portion 7 is in a state where the volume of the molding cavity is almost equal to the volume of the brass material in the first half of the molding after the mold clamping (pre-forming process) (the forged material has the cavity). It is formed into a completed state by forming a brass material in a state of being filled inside. The uneven portion 7 is formed continuously in the subsequent deep hole forming process. Is shaped.
- the bout tip fitting 3 has a plurality of sharp edge portions 6a.
- the plurality of sharp edge portions 6a are also formed with high accuracy.
- the brass material preferably has the following crystal structure.
- FIG. 2 to 4 are cross-sectional views schematically showing an apparatus for forging the tip metal fitting of FIG. 1 and a forging process.
- the brass material forging device 10 includes a main body frame (not shown), a lower mold 11, and an upper mold 17 corresponding to the lower mold 11.
- the lower die 11 has a lower die 12, a die pin 13, and an i-th hydraulic cylinder # 4 that holds the die pin 13 and can be driven up and down.
- the lower die 12 is fixed, and the upper surface of the lower die 12 is horizontal.
- the die pins 13 are slidably mounted on the pin holes 15 in the upper and lower directions.
- the outer shape of the uneven portion 7 of the tip metal fitting 3 is formed by the pin through hole 15 and the die pin 13.
- a stepped hole 16 (see also FIG. 6) is formed near the pin through hole 15 on the upper surface of the lower die 12 so as to communicate with the upper end of the pin through hole 15. .
- This stepped hole 16 is the stepped part of the tip 3 This is for forming the fitting portion 6.
- the first hydraulic cylinder 14 is disposed vertically below the die pin 13, and the upper end of the piston rod 14 a of the first hydraulic cylinder 14 is connected to the die pin 13. It is connected to.
- the first hydraulic cylinder 14 can hold the die pin 13 at the position shown in FIGS. 3 and 4, or can lower the die pin 13 while applying a holding force to the die pin 13. . Further, the cylinder 14 can also raise the die pin 13 to eject the metal tip 3 of the molded part.
- the upper die 17 has an upper slide 18 and an upper die 19.
- the upper die 17 has an upper outer punch 20 and an upper inner punch 21.
- the upper slide 18 is moved up and down by a main hydraulic cylinder 22.
- the upper inner punch 21 is moved up and down by a third hydraulic cylinder 23.
- the upper slide 18 is vertically slidably guided through a guide portion slidably engaged with a guide portion formed on the main body frame, and is guided to the main hydraulic cylinder 22. Driven up and down:
- a concave part 24 having a circular cross section is formed so as to open toward the lower surface.
- At least the upper end of the upper die 19 is vertically slidably mounted in the recess 24.
- a flange 19 a is formed at the upper end of the upper die 19, and the flange 19 a is attached to a locking plate 25 fixed to the lower surface of the upper slide 18.
- Locked: The lower surface of the upper die 19 is formed in a horizontal plane that abuts the upper surface of the lower die 12.
- a plurality of spring receiving holes 26 are formed in the upper part of the upper die 19 so that the upper end is open.
- a compression spring 27 is mounted in each of the panel receiving holes 26.
- the upper outer punch 20 is formed integrally with the upper slide 18 and slidably inserted into the punch through hole 28.
- the outer shape of the cross section of the upper outer punch 20 is substantially D-shaped.
- the lower end portion of the upper punch 20 is formed with a fitting portion forming portion 30 (see also FIG. 6) for forming the fitting portion 4 of the tip metal fitting 3. As shown in FIG. 2, when the mold is clamped, the fitting part forming part 30 is in spatial communication with the step forming part 16.
- the upper inner punch 21 is mainly for forming the uneven portion 7 of the tip metal fitting 3 of the spat, and has a circular cross section.
- the upper inner punch 21 is inserted into the inner punch ⁇ through hole 31 at the center of the upper outer nonch 20 so as to be able to move up and down.
- the upper inner punch 21 is connected to a bolt rod 23 a of a third hydraulic cylinder 23 disposed above the upper inner punch 21, and is driven to move up and down by the cylinder 23.
- a short cylindrical brass material 3A is set in the mold.
- the brass material 3A passes through the intermediate molded body 3B shown in FIG. 3 and is formed into the tip metal fitting 3 shown in FIG.
- FIG. 5 is a diagram schematically showing a configuration of a hydraulic control system of the brass forging device shown in FIGS. 2, 3, and 4.
- This hydraulic control system has a hydraulic supply device 41 that supplies hydraulic pressure to the first hydraulic cylinder 14, the second hydraulic cylinder 22, and the third hydraulic cylinder 23. It also has a hydraulic circuit that includes electromagnetic directional switching valves 42 to 44 and electromagnetic proportional relief valves 45 and 46. Further, it has a plurality of detection switches 47 and a control unit 48.
- the hydraulic supply device 41 has a hydraulic pump, a drive motor, an oil tank, and the like (not shown).
- the electromagnetic directional change valve 42 is installed in the oil passage that supplies hydraulic pressure to the second hydraulic cylinder 22, and the electromagnetic directional change valve 43 supplies hydraulic pressure to the first hydraulic cylinder 14
- the solenoid-operated directional control valve 44 is installed in an oil passage that supplies hydraulic pressure to the third hydraulic cylinder 23.
- the electromagnetic proportional relief valve 45 is connected to an oil passage that supplies hydraulic pressure to the first hydraulic cylinder 14, and this cylinder 14 is connected to the electromagnetic proportional relief valve 4.
- the hydraulic pressure set in 5 is supplied. By setting the electromagnetic proportional relief valve 45, the back pressure of the die pin 13 is set.
- an electromagnetic proportional relief valve 46 is connected to an oil passage for supplying hydraulic pressure to the third hydraulic cylinder 23, and this cylinder 23 is connected to an electromagnetic proportional relief valve 46.
- the set hydraulic pressure is supplied.
- the plurality of detection switches 47 are detection switches for detecting the upper limit position and the lower limit position of the upper die 19, and the detection switches for detecting the upper limit position and the lower limit position of the upper inner punch 21. Includes switches etc.
- the control unit 48 has a micro computer and an input / output interface. Based on the detection signals from the plurality of detection switches 47, the micro computer ROM stores a hydraulic pressure supply device 41, an electromagnetic directional change valve 42 to 44, and an electromagnetic type ROM. The control program for controlling the proportional relief valves 45 and 46 is stored. The micro computer performs a control operation in accordance with the control program.
- 6 to 9 are cross-sectional views showing details of the lower die 11, the upper die 17 and the forging material 3A of the brass material forging device 10 shown in FIGS. 2 to 4 in an enlarged manner.
- Figure 10 is a stroke diagram of dies and punches during forging.
- the upper die 19 is lowered to bring the lower surface of the upper die 19 into contact with the upper surface of the lower die 1 2.
- the electromagnetic directional control valve 42 shown in FIG. 5 is switched to extend the piston rod 22 a of the second hydraulic cylinder 22 and lower the upper slide 18. It is performed at and.
- the lower end of the upper outer punch 20 and the upper The lower end of the punch 21 is flush with the upper end surface of the brass material 3A, forming the same plane. This state corresponds to times t1 to t2 in FIG.
- the set pressure of the electromagnetic proportional relief valve 45 is set to a high pressure, and the holding force (pressing force or supporting force) of the die pin 13 is set high.
- the first hydraulic cylinder 14 is operated by operating the electromagnetic directional control valve 43 to move the upper end of the die pin 13 into the stepped hole 16 as shown in FIG. Set the height of the die pin 13 so that it is flush with the lower end.
- switch the electromagnetic directional switching valve 43 to the block position a.
- the upper outer punch 20 and the upper inner punch 21 are integrally driven downward, and as shown in FIG. 8, the volume of the molding cavity 1C is almost equal to the volume of the brass material 3A.
- a brass material 3A is formed in the following condition. In this state, the forming (pre-forging process) of the portions other than the uneven portion 7 (see FIG. 9) (that is, the fitting portion 4, the flange portion 5, and the stepped fitting portion 6) is completed. .
- the set pressure of the electromagnetic proportional relief valves 45 and 46 is set to a high pressure
- the electromagnetic directional control valves 42 and 44 are switched, and the second hydraulic cylinder 22 is switched.
- the piston rod 22a and the piston rod 23a of the third hydraulic cylinder 23 are driven down in synchronization with each other.
- the solenoid-operated directional control valve 43 is held at the block position a. Since the hydraulic oil is an incompressible fluid, the oil pressure in the head-side oil chamber (lower oil chamber) of the first hydraulic cylinder 14 is maintained high during the pre-forging process, and the die pin 13 does not retreat downward. Therefore, in the pre-forging step, the brass material 3A is formed into an intermediate formed body 3B as shown in FIG. 8 (or FIG. 3) by closed die forging. This state corresponds to times t2 to t3 in FIG. Next, as shown in FIG. 9, the upper inner punch 21 is driven downward and the die pin 13 is retracted downward.
- the concavo-convex portion 7 is formed continuously from the forging process before.
- the electromagnetic proportional relief valve 45 is switched to a set pressure lower than the pressing force of the upper inner punch 21 and the electromagnetic directional switching valve 43 is switched to the port retreat position b.
- the holding force (back pressure) of the die bin 13 is held low through the throttle 43 a of the rod retreat position b of the electromagnetic directional switching valve 43. This state corresponds to times t3 to t4 in FIG.
- the uneven portion 7 is formed by using the material of the lower part of the upper inner punch 21 of the intermediate formed body 3B shown in FIG. For this reason, the volume of the brass material in the same portion is set so as to be approximately equal to the net volume of the uneven portion 7. If this condition is satisfied, the position of the upper end of the die pin 13 in molding the intermediate molded body 3B is not limited to the position shown in FIGS. It may be set slightly higher or slightly lower than the position.
- the upper die 17 is returned to the upper limit position.
- the die pin 13 is raised to the upper limit position by the hydraulic cylinder 14. This ensures that the Supau preparative end bracket 3 has been completed molded market shares di E click preparative out Ri lower mold 1 1 Kakarato by c According to the above forging method, the following operation and effects can be obtained.
- the upper inner punch 21 is driven downward while the parts other than the irregularities 7 are sealed in the mold, following the molding of the parts other than the irregularities 7.
- the punch 2 1 is driven into the forged material 3A.
- the holding force of the die pins 13 is switched to a lower level, and the concave and convex portions 7 are formed while the die pins 13 are retracted with back pressure applied.
- the brass material does not flow upward during the formation of the uneven portion 7, and the uneven portion 7 can be precisely and smoothly formed without increasing the pressing force of the upper inner punch 21.
- edge 1 Sharp parts with 6 a can be molded-Also, the material does not flow upward during molding of the irregularities 7, and the friction between the brass material generated during the flow and the lower die 13 Since the resistance does not increase due to the force, the pressing force of the upper inner punch 21 does not need to be increased so much, and the upper inner punch 21 is less likely to buckle, and the durability is improved.
- the first hydraulic cylinder 14 is used as holding means for holding the die pin 13, and the hydraulic pressure in the oil chamber on the head side of the first hydraulic cylinder 14 is changed to change the die. Since the holding force of the spin 13 is changed, the holding force of the die pin 13 can be appropriately adjusted.
- brass with good workability is one of the preferred forging materials.
- conventional brass has a problem in corrosion resistance and the like as compared with bronze when used as a water supply component for a house.
- problems such as corrosion resistance fall within an acceptable level.
- ⁇ +] 3 phase (1) ⁇ +] 3 phase; the area ratio of the 3 phases is 20% or more, and the average crystal grain size of the ⁇ phase and the phase is 15 ⁇ m or less; Crystal structure in which the Sn concentration is 1.5 wt% or more.
- the area ratio of the ⁇ + ⁇ phase and the ⁇ phase is 3 to 30%, the average crystal grain size of the ⁇ phase is 15 m or less, and the average crystal grain size (minor axis) of the ⁇ phase Is 8 ⁇ m or less and the Sn concentration in the ⁇ phase is 8 wt% or less.
- the ⁇ phase is scattered at the grain boundary of the ⁇ phase.
- phase and ⁇ phase area ratios are 3 to 30%, respectively, and ⁇ phase and ⁇ phase
- the average crystal grain size of the three phases is 15 ⁇ m or less, the average crystal grain size (minor axis) of the ⁇ phase is 8 m or less, and the Sn concentration in the ⁇ phase is 8 wt% or more; Crystal structure in which the ⁇ phase surrounds the ⁇ phase.
- the first characteristic is that the maximum dezincification depth is obtained by a dezincification corrosion test according to the Japan Copper and Brass Association Technical Standard (JBMAT-303). However, it exhibits corrosion resistance of 100 ⁇ m or less when it is parallel to the processing direction and 70 ⁇ m or less when it is perpendicular to the processing direction.
- the can and the cylindrical article a load of stress 1 8 ON / mm 2 for 2 4 hours exposure while adding in ammonia atmosphere on 1 4 o / o ammonia solution, the sample It has SCC resistance that it does not crack.
- the fourth feature is that it has resistance to erosion corrosion.
- a brass material having a composition having an apparent Zn content force of 37 to 50 wt% and an Sn content force of 1.7 to 2.2 wt% is used. Is used.
- the term “apparent Zn content” means that A is the Cu content (wt%), B is the Zn content (wt%), and the third element to which t is added. (Zn equivalent of S n) and Q as the content (wt%) of the third element,
- the brass material having the above composition has a ⁇ phase in which the average crystal grain size of the short axis is 15 ⁇ m or less in the crystal structure of the forged material during forging. Due to such a crystal structure during processing, sufficient ductility of the forged material is ensured even when plastic deformation occurs while recrystallization occurs in a low temperature range of 300 to 550 ° C. Can be secured.
- the ductility of the material can be made almost constant between the start and end of processing, and the formability of the forged material Is improved.
- Heating the punch or die to 300 to 550 C C is also preferable in terms of improving formability.
- a heater and a temperature sensor are incorporated in the punch or the die, and the heat generated by the heater is determined based on the detection signal output from the temperature sensor. Can be controlled by a temperature controller.
- FIG. 11 is a sectional view showing the structure of a pedestal formed by the die forging method according to the second embodiment of the present invention.
- FIG. 12 is a cross-sectional view showing an intermediate forged product of the pedestal of FIG. 11.
- the pedestal 50 in this example has a short tubular shape, and has a pedestal portion 51 and a step portion 52 fixed to a predetermined mounting surface.
- an intermediate forged product 50B is forged.
- the intermediate forged product 50B has a bottom 53, a pedestal prototype 54 having an edge 54a, and a step prototype 55.
- the bottom 53 of the intermediate forged product 50B and the edge 54a of the base base 54 are removed by cutting or the like to obtain the base shown in FIG.
- FIGS. 13 to 17 are cross-sectional views schematically showing an apparatus for forging the pedestal intermediate forged product of FIG. 12 and a forging process.
- This brass material forging device consists of a lower die and an upper die corresponding to the lower die.
- the lower die has a lower die 12 and an ejector pin 15 that slides up and down through the pin insertion hole of the lower die 12.
- the upper die has an upper die 19 and an upper punch 24 that slides up and down through a punch through hole of the upper die 19 with a cylinder.
- the lower die 12 is fixed, and the upper die 19 is moved up and down between the mold opened state and the mold clamped state.
- a stepped molding hole 12 a is formed on the upper surface of the lower die 12.
- the stepped forming holes 12a are for forming the stepped base part 55 and the base base part 54 of the pedestal intermediate forged product 50B.
- the portion 12b surrounded by the stepped molding hole 12a is located higher than the upper surface of the other lower die 12.
- a portion 24a of the lower surface of the upper punch 24 facing the stepped hole 12a is formed in a concave shape. In the clamped state, the concave portion 24 a of the upper punch 24 communicates with the stepped hole 12 a of the lower die 12.
- the heated forged material 50A is placed on the lower die 1 2 in the area 1 2b surrounded by the stepped forming hole 1 2a. Is set to At this time, the upper punch 24 is located more backward than the lower surface of the upper die 19.
- the forged material 50 A is deformed by flow, and the bottom 53 of the intermediate forged product 50 B has a prototype 5 3 ′, a prototype base 54, a prototype 54, and a step prototype 55, a prototype 5 5 ′ Some are molded.
- the forged material 50A is filled into each part to form an intermediate forged product 50B having a bottom 53, a pedestal original part 54, and a step original part 55.
- the upper die After the completion of the forging, the upper die is returned to the upper limit position as shown in FIG. Subsequently, as shown in Fig. 17, the jeweler bin 15 is raised to discharge the intermediate forged product 50B. Finally, the bottom portion 53 of the intermediate forged product 50B and the edge 54a of the base portion 54 are removed by cutting or the like to obtain a final base 50.
- a hole serving as the bottom portion 53 and the step original shape portion 55 is formed by the punch 24, and the base portion original shape portion 54 around the hole is continuously formed by the punch 24.
- FIG. 18 is a view showing a structure of an impeller according to a third embodiment of the present invention, wherein FIG. 18 (A) is a plan view and FIG. 18 (B) is a sectional view.
- FIG. 19 is a view showing the structure of an intermediate forged product of the impeller of FIG. 18, wherein FIG. 19 (A) is a plan view and FIG. 19 (B) is a cross-sectional view.
- the impeller 60 of this example has a hub portion 61 and a blade portion 62, and a shaft hole 63 passes through the center.
- an intermediate forged product 60B is forged.
- the intermediate forged product 60B has an outer burr portion 62a, an end burr portion 63a, a material placing step portion 62b, and a punch step portion 62c.
- the outer burrs 62 a, the material placing step 62 b, the punch step 62 c, and the end burr 63 a of the intermediate forged product 60 B are removed by cutting or the like, as shown in FIG. Get the impeller.
- FIG. 4 is a cross-sectional view schematically illustrating a forging process.
- This brass material forging device has a lower die and an upper die corresponding to the lower die.
- the lower die has a lower die 12 and an ejector pin 15 that slides up and down through a pin hole of the lower die 12.
- the upper die has an upper die 19 having an upper outer punch 20 and an upper inner punch 21.
- the upper outer punch 20 is not connected to a drive source, and is disposed in a punch through hole of the upper die 19 so as to be slidable up and down.
- the lowering of the upper punch 20 is locked by the locking surface 19 b of the upper die 19.
- the upper inner punch 21 slides up and down through the punch insertion hole of the upper outer punch 20.
- the lowering of the upper inner punch 21 is locked by the locking surface 20a of the upper outer punch 20.
- a stepped molding hole 12 a is formed on the upper surface of the lower die 12. These stepped forming holes 12a are used to connect the outer part 62a of the intermediate forged product 60B, the material placing step part 62b, the no, the step part 62c, and the end face part 63a.
- a stepped molding hole 19a is also formed in a portion of the lower surface of the upper die 19 opposite to the stepped molding hole 12a. These stepped holes 12a and 19a communicate with each other.
- the heated forged material 60A is set in the stepped hole 12a of the lower die 12 with the mold open.
- the upper die 19 and the upper inner punch 21 are simultaneously lowered, and the lower surface of the upper die 19 contacts the upper surface of the lower die 12 to clamp the mold. I do.
- the lower surface of the upper outer punch 20 abuts on the upper surface of the forged material 6OA and is locked. No load is applied to the upper outer nonch 2 ⁇ , and the punch 20 retreats relatively to the upper die 19.
- the upper inner bunch 21 is lowered until it comes into contact with the locking surface 20a of the upper punch 20.
- a part of the end burr portion 63 a of the shaft hole 63 is formed.
- the upper outer punch 20 remains in contact with the forged material 3A.
- the upper inner punch 21 is further lowered.
- the upper inner punch 21 is locked on the locking surface 20 a of the upper outer punch 20, and the upper outer punch 20 and the upper inner punch 21 are simultaneously lowered, and the upper outer punch 20. Abuts against the locking surface 19 b of the upper die 19.
- a shaft hole 63 is formed.
- the forged material flows and deforms and is filled in each stepped forming hole.
- the outer portion 62 a is formed of the material that protrudes to the outer periphery, and the end face portion 63 a is completely formed. Insert the upper inner punch 21 to completely form the shaft hole 63, and further compress it with the upper outer punch 20 to form the hub 61. Since the material is spread in the direction, the material spreads more uniformly, and the formability is improved.
- the upper inner punch 21 is pulled out of the forged product as shown in FIG. After that, the upper die is returned to the upper limit position as shown in Fig. 25. At this time, the upper outer punch 20 also rises at the same time. Subsequently, as shown in FIG. 26, the jeweler bin 15 is raised to discharge the intermediate forged product 60B. In addition, a part 12 c of the lower die 12 also rises in the same manner as the edgetat bin 15 to help discharge the intermediate forged product 60B.
- the outer burr portion 62 a, the end burr portion 63 a, the material placing step portion 62 b, and the punch step portion 62 c are removed by cutting or the like to obtain a final impeller 60.
- the forged material 6 OA At the same time that the upper inner punch 21 (first punch) is driven into the upper inner punch 21 (first punch), the upper inner punch 21 (second punch or die) is not retracted. S) is used to process forged materials. For this reason, there is an advantage that the shape formed by the upper inner punch 21 (first punch) does not collapse.
- FIGS. 27 to 33 are cross-sectional views schematically showing an apparatus and a forging process according to another embodiment for forging the impeller intermediate forged product of FIG.
- This brass material forging device has a lower die and an upper die corresponding to the lower die.
- the lower die has a lower die 12 and an ejector pin 15 that slides up and down through the pin hole of the lower die 12.
- the upper die has an upper die 19 having an upper outer punch 20 and an upper inner punch 21.
- the upper outer punch 20 is not connected to a drive source, and is disposed slidably up and down in a punch through hole of the upper die 19.
- the lowering of the upper punch 20 is locked by the lower locking surface 19a of the upper die 19, and the rising is locked by the upper locking surface 19b of the upper die 19.
- the upper inner punch 21 slides up and down through the punch through hole of the upper outer punch 20.
- the lowering of the upper inner punch 21 is locked by the locking surface 20 a of the upper outer punch 20.
- a stepped molding hole 12 a is formed on the upper surface of the lower die 12.
- These stepped holes 12a are the outer part 62a of the intermediate forged product 60B, the step part 62b of the blank, and the no. This is for forming the stepped portion 62c and the end burr portion 63a.
- a stepped forming hole 19b is also formed in a portion of the lower surface of the upper die 19 opposite to the stepped forming hole 12a. When the mold is clamped, these stepped holes 12a and 19b communicate with each other.
- the heated forged material 60A is set in the stepped hole 12a of the lower die 12-upper hole
- One punch 20 is located on the lower locking surface 19 a of the upper die 19.
- the upper die 19 and the upper inner punch 21 are simultaneously lowered, and the lower surface of the upper die 19 is brought into contact with the upper surface of the lower die 12.
- no mold clamping was performed at this time.
- the lower surface of the upper outer punch 20 abuts on the upper surface of the forged material 6OA and is locked.
- the notch 20 retracts from the upper die 19 to the upper locking surface 19b of the upper die 19.
- the forged material 60 A is pressed by the upper inner punch 2 ⁇ and the upper die 19 to flow and deform, and a part of the blade portion 62 ′ begins to be formed by an amount protruding in the outer peripheral direction. You. At the same time, the end burr portion 6 3a starts to be formed.
- the upper inner punch 21 is lowered until it comes into contact with the locking surface 20a of the upper punch 20.
- a part of the end burr portion 63 a of the shaft hole 63 is formed.
- a part 62 'of the blade portion is further formed.
- the upper punch 20 retreats, and the upper die that is not clamped also retracts.
- the upper inner punch 21 is further lowered.
- the upper inner punch 21 is locked on the locking surface 20a of the upper outer punch 20, and the upper outer punch 20 and the upper inner punch 21 descend simultaneously.
- a shaft hole 63 is formed.
- the forging material flows and deforms, filling each stepped forming hole, completely forming the blades 62 with the material protruding to the outer periphery, and completely forming the end face burrs 6 3a. I do.
- the upper inner punch 21 is inserted to completely form the shaft hole 63.
- the upper inner punch 21 is pulled out of the forged product as shown in FIG. 31. Thereafter, the upper die is returned to the upper limit position as shown in FIG. At this time, the upper outer punch 20 also rises at the same time. Subsequently, as shown in FIG. 33, the projecting pin 15 is raised to discharge the intermediate forged product 60B. A part 12c of the lower die 12 also rises in the same manner as the object bin 15 and discharges the intermediate forged product 60B.
- the outer part 62 a, the end face part 63 a, the material placing step part 62 b, and the punch step part 62 c are removed by cutting or the like to obtain a final impeller 60. .
- the upper inner punch 21 (first punch) is retracted while the upper inner punch 21 (first punch) is driven into the forged material.
- the forging material is added by the upper punch 20 (the second punch or die) without causing it to run. For this reason, there is an advantage that the shape formed by the upper inner nonch 21 (first haunch) does not collapse.
- FIGS. 34 to 37 are cross-sectional views schematically showing an apparatus and a forging process according to another embodiment for forging the impeller intermediate forged product of FIG.
- This brass material forging device has a lower die and an upper die corresponding to the lower die.
- the lower die has a lower die 12, a die pin 13 that slides up and down through the punch insertion hole of the lower die 12, and an edge that slides up and down the pin through hole of the lower die 12. It has 15 bins.
- Upper die, upper die 1 9 and an upper punch 24 that slides up and down through the bunch insertion hole of the upper die 19. The lowering of the upper punch 24 is locked by the lower locking surface 19 b of the upper die 19.
- a stepped hole 1 2 a is formed on the upper surface of the lower die 1 2.
- the stepped hole 12 a is formed on the outer part 6 of the intermediate product 60 B.
- a stepped forming hole 19a is also formed in a portion of the lower surface of the upper die 19 opposite to the stepped forming hole 12a. When the mold is clamped, these stepped holes 12a and 19a communicate with each other.
- the heated forged material 60A is set in the stepped forming hole 12a of the lower die 12.
- the upper surface of the die pin 13 is located on the same plane as the surface of the stepped molding hole 12a, and is set to have a lower holding force.
- the shaft hole 6 3 By forming the shaft hole 6 3 with 4, it is possible to accurately form the outer shape of the blade 6 2 — After the completion of the forging, the upper punch 24 is pulled out of the forged product as shown in FIG. After that, the upper die is returned to the upper limit position. Subsequently, the object bin 15 is raised to discharge the intermediate forged product 60B.
- the outer burr portion 62 a, the end burr portion 63 a, the material placing step portion 62 b, and the punch step portion 62 c are removed by cutting or the like to obtain a final impeller 60.
- an upper die 19 (a die for forging the outer shape of a molded product) and an upper punch 24 (a punch for molding a concave portion of the molded product).
- the forging is performed by pressing the forging material 60 A in combination with and while the die pin 13 is forcibly retracted while applying back pressure during forging. For this reason, it is possible to mold a product having a complicated shape such as an impeller.
- the upper die 19 (mold) and the upper punch 24 (punch) are formed using different timings. If the mold and the punch (or a plurality of punches) are operated integrally, there may be a problem that the meat near the base of the upper punch 24 (punch) becomes underfilled during forging. However, if both are used at different timings or molding is performed using a plurality of punches at different timings, such problems can be prevented.
- FIG. 38 is a diagram showing the structure of a water meter formed by the die forging method according to the sixth embodiment of the present invention.
- FIG. 38 (A) is a front sectional view
- FIG. (B) is a partial sectional plan view.
- FIG. 39 is a diagram showing the structure of the intermediate forged product of the water meter in FIG. 38.
- FIG. 39 (A) is a front sectional view
- FIG. 39 (B) is a partial sectional plan view. is there.
- the water meter 70 has a rotating blade (not shown) in the center. It has a blade insertion part 71 to be attached and a lid screw part 72. In addition, it has a flowing water outlet passage 74 extending downward and rightward from the insertion portion 71 and a flowing water inlet passage 73 extending downward and leftward: at a distal end of the flowing water outlet passage 74 and the flowing water inlet passage 73. Is provided with an outlet thread 74a and an inlet thread 73a. As shown in Fig. 44, the intermediate forged product 70B has bar portions 74b and 73b at the end of the outlet thread 74a and the inlet thread 73a, respectively. .
- each of the water passages has a groove portion 74c, 73c at a position where it enters the inlet portion 71.
- the parts 74b, 73b, 74c, and 73c are removed by cutting or the like to obtain a finished water meter 70.
- FIGS. 40 to 48 are diagrams schematically showing an apparatus for forging the intermediate forged product of the water meter shown in FIG. 39 and a forging process.
- FIG. 40 is a side sectional view of the forging apparatus
- FIG. 41 is a plan view
- FIG. 42 is a side sectional view taken along the line AA.
- This brass material forging device has a lower die and an upper die corresponding to the lower die.
- the lower die has a lower die 12, left and right side punches 2 26, 2 27, a middle punch 2 288, and an ejector pin 15 that slides up and down through a pin hole.
- the left and right side punches 2 26 and 2 27 slide through punch through holes formed on the left and right sides of the lower die 19.
- the middle punch 2 28 slides in a punch insertion hole formed in the front of the lower die 19.
- the left and right punch insertion holes are located on a straight line on the horizontal cross section, and the middle punch insertion hole and the left and right punch insertion holes are located at right angles on the horizontal cross section.
- the left punch insertion hole and the right punch insertion hole are inclined outward and downward.
- a stepped molding hole 12 a is formed on the upper surface of the lower die 12. It faces the stepped hole 1 2a on the lower surface of the upper die 19 ⁇ The step is formed with a stepped molding hole 19a. In the mold clamping state, with these stages forming hole 1 2 a, 1 9 a communicates c
- the upper die 19 has a built-in heater (not shown). Further, as shown in FIG. 42, a heat insulating material is wound around the outer periphery of the lower die 12 and the upper die 19. The mating surface of each die is covered with heat insulating material 229 and SUS plate 230 to keep it warm.
- the heated forging blank 70A is set on the stepped hole 12a of the lower die 12: As shown in FIG. 44, the upper die 19 is lowered and brought into contact with the lower die 12 to perform mold clamping. Next, as shown in FIG. 45, the middle punch 228 is inserted. At this time, the forged material 7OA is subjected to fluid deformation, and the blade insertion portion 71, the lid screw portion 72, and a part of each of the flowing water passages 7 4 'and 7 3' are formed. The holding force is still applied to the middle punches 2 28 even after the insertion is completed. Subsequently, as shown in FIG. 46, the left side punch 22 6 and the right side punch 22 7 are simultaneously inserted to the locking surface. Here, the threaded portions 74b, 73b and the threaded portions 74c, 73c of each flowing water path are formed.
- the middle nonch 228, the left side punch 222, and the right side punch 222 are retracted as shown in FIG.
- the upper die is returned to the upper limit position as shown in Fig. 48.
- the ejector pin 15 is raised to discharge the intermediate forged product 70B.
- the intermediate molded product is processed by the above-mentioned cutting process and the like, and unnecessary parts are removed to obtain a final molded product.
- an overhanging step of forming an overhang portion by forging and a forming step of further forging the overhang portion and forming the overhang portion into a predetermined shape. And the above two steps are the same 00/05008
- the left and right side punches 22 6 and 22 7 are used to forge the overhanging portions that have been overhanged in the overhanging process. Better filling of material than molding with only a pour.
- the overhanging process and the forming process are performed in the same mold, the number of types of the mold can be reduced, and the cost of the mold can be reduced. Furthermore, there is no need to transfer the forged material to another press during forging, so productivity is high.
- This final molded product has SCC resistance.
- FIG. 49 is a diagram showing an SCC resistance test apparatus.
- SCC resistance test This is a glass desiccator 2 3 within 1, while applying a load vertically to a cylindrical sample 2 3 2, after exposure for 24 hours in NH 3 vapor atmosphere, harm ij Re generation It is evaluated by investigating.
- 5 0 is a diagram showing the resistance to E co Rosi Yo emissions testing system c
- the eco-resistance was determined by using a cylindrical sample 53 having an orifice 23 inside, and flowing water through the orifice 23 at a flow rate of 40 m / sec for a predetermined time. Under a water pressure of 4.9 ⁇ 105 Pa (Kg / cm 2 ), the tightening torque to the resin stopper 234 required to seal the orifice 233 was measured.
- Figure 51 is a graph showing the results of an eco-resistance test.
- FIG. 52 is a diagram showing the structure of a discarded shaft formed by the die forging method according to the seventh embodiment of the present invention.
- FIG. 52 (A) is a perspective view
- FIG. 52 (B). Is a sectional view.
- FIG. 53 is a view showing the structure of the intermediate forging of the discarded shaft of FIG. 52, where FIG. 53 (A) is a perspective view and FIG. 53 (B) is a cross-sectional view.
- the intermediate forged product 80 of this example has a shaft portion 81, an upper small diameter portion 82, a large diameter portion 83, and a lower small diameter portion 84.
- a disposal margin 80a protrudes from the lower small diameter portion 84. This discarding allowance 80a is removed by cutting or the like to obtain a final intermediate forged product 80.
- FIGS. 54 to 56 are cross-sectional views schematically showing an apparatus for forging the intermediate shaft forged product of FIG. 53 and a forging process.
- This brass material forging device has a lower die and an upper die corresponding to the lower die.
- the lower die has a lower die 12 and a die pin 13 that slides up and down through the pin hole of the lower die 12.
- the upper die has an upper die 19 and an upper outer punch 20 provided integrally therewith.
- a stepped molding hole 12 a is formed on the upper surface of the lower die 12.
- the upper outer punch 20 is fitted into the upper stepped hole 12a.
- a stepped forming hole 2Ob is formed on the lower surface of the upper outer punch 20 on the lower surface of the upper outer punch 20 on the lower surface of the upper outer punch 20 .
- the heated forged material 80 A is set in the stepped forming hole 12 a on the lower die 12.
- the upper die 19 is lowered, and the lower surface of the upper outer punch 20 is brought into contact with the upper surface of the forging material 8OA.
- the lower surface of the upper die 19 is not in contact with the upper surface of the lower die 12.
- Die pins 13 have a holding force.
- the upper outer punch 20 causes the forged material 13 to flow and deform, A part of the part 81, the upper small diameter part 82, the large diameter part 83, and the lower small diameter part 84 are formed.
- the upper die 19 is lowered, and the lower die 19 is brought into contact with the upper surface of the lower die 12 to clamp the die.
- the excess forged material 3 A becomes the die pin 13. Overcome a holding power of 3 and move dice bin 13 back.
- the excess forging material 80A flows into the pin insertion hole of the lower die 12 to form a discard allowance 80a. It also flows into the shaft 81 and completely forms the shaft 81-Finally, the upper die 19 is raised and the die pins 13 are raised to discharge the molded product.
- the holding force of the die pin 13 is set to a low level, so that the excess forging material 8 OA comes into contact with the die pin 13 and Defeat the holding power of Spin 1 3. Since the die pin 13 moves into the pin hole while moving, the forging is not interrupted due to the sealed high pressure state, and the load on the mold can be reduced.
- FIG. 57 is a view showing the structure of a discarded shaft formed by the die forging method according to the eighth embodiment of the present invention.
- FIG. 57 (A) is a perspective view
- FIG. 57 (B). Is a sectional view.
- FIG. 58 is a view showing the structure of the intermediate forging of the discarded shaft of FIG. 57, where FIG. 58 (A) is a perspective view and FIG. 58 (B) is a cross-sectional view.
- the intermediate forged product 90 has an edge 91, a hole 92, and a shaft 93.
- the disposal allowance 90a protrudes from the shaft 93 force.
- the disposal cost 90a is removed by cutting or the like to obtain a final disposal shaft 90.
- FIGS. 59 to 62 are cross-sectional views schematically showing a device for forging the intermediate shaft forged product of FIG. 58 and a forging process.
- This brass material forging device has a lower die and an upper die corresponding to the lower die.
- the lower die has a lower die 12 and a die pin 13 that slides up and down through the pin insertion hole of the lower die 12.
- the upper die has an upper die 19 and an upper punch 24 that slides up and down through a punch through hole of the upper die 19.
- a stepped molding hole 12 a is formed on the upper surface of the lower die 12.
- a stepped hole 19a is formed in the lower surface of the upper die 19 at a portion facing the stepped hole 12a. When the mold is clamped, these stepped molding holes 19a and 12a communicate with each other.
- the heated forged material 90A is set in the stepped hole 12a of the lower die 12.
- the upper surface of the die pin 13 is located on the same plane as the surface of the stepped molding hole 12a.
- the upper die 19 and the upper punch 2 4 at the same time, lower the upper die 19 Abut on the top surface of the lower die 1 2 and tighten the mold.
- the upper punch 24 is lowered to the first stage.
- the forged material flows and deforms, and a part of the edge portion 91, the hole portion 92, and the shaft portion 93 are formed.
- the holding force of the dice pin 1 3 is rather like Mr.
- die spin 1 3 to c is we do not retreat, as shown in FIG. 6 2
- the load applied to the die pin 13 becomes larger than the holding force, and the excess forged material 90 A overcomes the holding force of the die pin 13 and retreats the die pin 13. Let it.
- the edges 9 1 is fully formed, forging material 9 0 A surplus flows into the pin insertion hole, the c Finally discarded margin 9 0 a is formed, returning the upper die to the upper limit position Then, the intermediate forged product is discharged ( then, the disposal allowance 90a is removed by cutting or the like to obtain the final disposal shaft 90).
- FIG. 63 is a view showing the structure of a hand shower support fitting formed by the die forging method according to the ninth embodiment of the present invention.
- FIG. 63 (A) is a plan sectional view
- FIG. 3 (B) is a side sectional view.
- the hand shower support bracket 100 in this example has a cylindrical bottom with a deep recess (first recess) 101 for inserting the hand shower, and a larger and shallower recess. (Second concave portion) It has two portions of 102. The open end is provided with a protruding portion 103 that protrudes to the outer periphery, and the closed end is provided with a small protrusion 104.
- FIGS. 64 to 69 are sectional views schematically showing an apparatus for forging the hand shower support of FIG. 63 and a forging process.
- This brass material forging device has a lower die and an upper die corresponding to the lower die. I do.
- the lower die has a lower die 12 and a die pin 13 that slides up and down through the pin insertion hole of the lower die 12.
- the upper die has an upper die 19, an upper punch 20 and an upper inner punch 21.
- the upper punch 20 slides vertically between the lower locking surface 19b and the upper locking surface 19c of the upper die 19. Further, the upper outer punch 20 is urged upward by the panel 20c.
- the upper inner punch 21 slides up and down through the punch insertion hole of the upper outer punch 20.
- a recess 13 a is formed on the upper surface of the die pin 13.
- the recess 13 is for forming a projection 104 of the hand shower support 100.
- the heated structural material 100 A is set in the lower die 12 on the die pins 13, as shown in Figure 64: At this time, the lower surface of the upper outer punch 20 urged upward, the lower surface of the upper inner punch 21 is located on the same plane as the lower surface of the die 19.
- the upper die 19 and the upper inner punch 21 are simultaneously lowered, and the lower surface of the upper die 19 is brought into contact with the upper surface of the lower die 12 to form the mold. Tighten.
- the die pins 13 are raised.
- the upper inner punch 21 is assisted to be located at the position shown in FIG.
- the forged material 100A is flow-deformed, and the overhang portion 103 is formed, and the protrusion 104 is formed on the end face. In this way, by providing a molding recess in the die pin 13, it is possible to mold a complicated shape.
- the upper inner punch 21 is lowered.
- the forming of the deep recessed portion 101 ′ is started.
- the pins 13 recede downward while applying back pressure to the forged material 100A.
- the die pin 13 descends by a volume equal to the pushing volume of the upper inner punch 21.
- the upper inner punch 21 is further lowered.
- the upper inner comes into contact with the upper outer punch 20 and the upper outer punch 20 also descends at the same time.
- a shallow recess 102 is formed. Die pins 13 retract while applying back pressure.
- the D3 part integration of the forged material 3A is pushed up in the opposite direction to the upper inner punch 21 and the upper outer punch 20. No forging occurs, and the forged material 100 A flows continuously and smoothly. As a result, there will be no minute cracks in the product. Also, since the pressing force of the punch may be substantially equal to the material processing force, the depth of the concave portion can be freely set without the buckling of the punch.
- FIG. 70 is a side sectional view showing the structure of a flash valve lid formed by the die forging method according to the tenth embodiment of the present invention.
- the flash valve lid 110 of this example is concave and has a cylindrical portion 111 and a top portion 112.
- a knob 1 13 with an undercut is provided on the upper surface of the top 1 1 2.
- the shoulder portion 1 1 4 is provided in the cylindrical portion 1 1 1 Rereru c
- FIG. 2 is a cross-sectional view schematically showing an apparatus and a forging process.
- This brass material forging device has a lower die and an upper die corresponding to the lower die.
- the lower die has a lower die 12 and a lower punch 2 35 that slides up and down through a punch through hole of the lower die 12.
- a color 236 is attached to an outer peripheral portion of the lower punch 235, and is urged upward by a panel.
- the upper die has an upper die 19 and an upper punch 24 that slides up and down through a punch insertion hole of the upper die 19.
- a frame 237 is provided on the outer periphery of the upper punch 24.
- This piece 2337 is composed of two parts 237a and 237b symmetrical in the axial direction of the upper notch 24, and is urged outward by a panel at right angles to the axis. I have.
- a stepped molding hole 12 a is formed on the upper surface of the lower die 12.
- the lower surface of the frame 237 is formed in a concave shape.
- a concave portion 237c is provided in a portion of the frame 237 facing the divided portions 237a and 237b.
- the recess 237c is for molding the knob 1 13 of the flash cover 1110.
- the heated forged material 110A is set on the lower punch 2335 of the lower die 12 with the mold opened.
- the lower end face of the frame 2 37 is located lower than the lower face of the upper die 12.
- the upper die 19 and the upper punch 24 are simultaneously lowered, and the lower surface of the top 23 is brought into contact with the upper surface of the lower die 12 and fixed.
- the forged material 110A undergoes flow deformation, and the top 1 1 2 and the shoulder 1 1 4 are formed, and at the same time, the original shape 1 1 3 'of the knob 1 1 3 starts to be formed.
- the lower punch 235 is raised.
- the forged material 110A further flows and deforms, and grows upward in the original shape 1113 'force S of the knob 113.
- the character of the bottom 2 3 5 A force higher than the holding force of the panel is also applied to the upper part of the one-third part 36, and the cylinder part 111 is completely formed.
- a back pressure is applied to the color 2336 by a spring, and the lower end of the cylindrical portion 11 1 1 is pressed to prevent the forged material from cracking.
- the upper punch 24 descends.
- the original shape of the knob 1 13 formed on the top 1 1 2 is crushed and protruded to the side, and the knob (projection) 113 with an undercut is formed.
- the knob 111 with the undercut and the knob 111 with the undercut are formed in this way, the crack of the nut 111 and the winding of the surface layer of the undercut can be achieved. And forging defects are less likely to occur, after which the lower punch 235 descends as shown in FIG.
- the upper die 19, the upper punch 24, and the top 23 rise as a body.
- the forged product rises as soon as it is sandwiched between tops 2 3 7.
- the upper punch 24 descends into the upper die 19.
- the top 2 37 is opened right and left by the bias of the spring, and the knob 113 is released, so that the forged product 110 is reliably discharged.
- the lower punch 2 used to form the cylindrical portion 1 1 1 (cylindrical portion) when removing the forged product 110 (molded product) is used.
- 3 5 (Punch) is removed first from the B step, and after this B step, the top 2 3 7 (die) used to form the outer peripheral surface of the cylindrical section 1 1 1 (cylindrical section)
- a C step for removing the molded product-Forging is completed by lowering the pulling force of the lower punch 235 (punch) and the comb 237 (die). Prevents deformation of the product 110 (molded product) and ensures that the molded product can be removed.
- FIG. 78 is a side cross-sectional view showing the structure of the H bush formed by the die forging method according to the first embodiment of the present invention.
- the H bush 120 has an H-shaped cross section, has an upper concave portion 121 and a lower concave portion 122, and has a flange 123 protruding outward on the outer circumference. ing.
- FIG. 79 and FIG. 80 are cross-sectional views schematically showing an apparatus for forging the H bush of FIG. 78 and a forging process.
- This brass material forging device has a lower die and an upper die corresponding to the lower die.
- the lower die has a lower die 19, a lower inner die pin 238 and a lower outer die pin 239.
- the lower outer die pin 239 slides up and down the pin through hole of the lower die 19, and the lower inner die pin 238 passes through the pin of the lower outer die pin 239.
- the upper die has an upper die 12 and an upper punch 24 that slides up and down through a punch through hole of the upper die 12 '.
- the lower inner die pin 239, the lower outer die pin 239, and the upper punch 24 slide on the same axis.
- a stepped molding hole 19 a is formed on the upper surface of the lower die 19.
- the stepped hole 19 a is used to form the flange 123 (the lower part of the upper die 12 faces the stepped hole 19 a).
- the stepped forming hole 12 a is formed, and the stepped forming hole 12 a forms the upper concave portion 12 1.
- the heated forging material 120 A is set on the upper surface of the inner die pin 238 and the outer die pin 239 of the lower die 12. At this time, the top surface of each die pin is located on the same plane.
- the upper die 19 and the upper punch 24 are simultaneously lowered, and the lower surface of the upper die 19 and the lower die are lowered. Contact the upper surface of Is 1 2 and tighten the mold. At this time, the forged material 120A undergoes flow deformation, and is formed into a part 121 of the upper concave portion and a flange 123 with force.
- the upper punch 24 is further lowered, and at the same time, the outer die pins 239 are lowered.
- the lowering volume of the upper punch 24 is equal to the lowering volume of the outer die pin 239.
- the inner die pin 238 is held under a high holding pressure. Thereby, the lower concave portion 122 is formed.
- the upper punch 24 and the die pins 238, 239 arranged coaxially can perform complicated forging having concave portions on the upper and lower sides. Finally, raise the outer die pin 239 to discharge the forged product.
- FIG. 81 is a side sectional view showing the structure of a cheese formed by the die forging method according to the 12th embodiment of the present invention.
- the cheese 130 has a tubular shape with a T-shaped cross section, and has left and right passages 13 1 and 13 2, and a lower passage 13 3 opened at right angles to the passage.
- To produce this cheese 130 first form an intermediate forged product 130B (see Fig. 86), and then produce the final product by cutting or the like.
- the intermediate forged product 3B has a shape having a wall at the center of the left and right passages 131, 132 and between the left and right passages 131, 132 and the lower passage 13.
- FIGS. 82 to 86 are cross-sectional views schematically showing an apparatus for forging the cheese of FIG. 81 and a forging process.
- This brass material forging device has a lower die and an upper die corresponding to the lower die.
- the lower die has a lower die 12, a left side punch 22 6, a right side bunch 2 27, a ring 25 2, and a lower fixed punch 25 3.
- the left and right side punches 2 26 and 2 27 slide coaxially through the left and right punch insertion holes of the lower die 12.
- the ring 25 2 slides up and down on the outer periphery of the fixed punch 25 3 of the lower die 12.
- the sliding direction of the ring 25 2 is perpendicular to the sliding direction of the left and right side punches.
- a molding hole 12 a is formed on the upper surface of the lower die 12.
- a molding hole 19 a is formed on the lower surface of the upper die 19. These molding holes 12a and 19a communicate when the mold is clamped.
- the heated forged material 130 A is set on the upper surface of the fixed nonch 25 3 and the ring 25 2 of the lower die 12. At this time, the upper surfaces of the fixed punch 25 3 and the ring 25 2 are located on the same plane.
- the upper die 19 is lowered, and the lower surface of the upper die 19 and the upper surface of the lower die 12 are brought into contact with each other to clamp the mold.
- the left and right side punches 22 6 and 22 7 are simultaneously inserted for the first stage. At this time, the forged material 130A flows and deforms, and portions 131 'and 132' of the left and right passages are formed. Ring 2 52 is retained.
- the rings 25 2 are simultaneously retracted.
- the volume of the left and right side punches inserted is equal to the retreat volume of the ring 25 2.
- the left and right passages 13 1 and 13 2 are further formed, and the lower passage 13 3 is formed.
- the left and right side punches 2 26, 2 27, and the ring 25 2 that slides in a direction different from the sliding direction of these side punches have a complex shape having openings in three directions. Can be forged.
- the ring 25 2 (die pin) is applied to one end surface of the forged material and backed up in a state where back pressure is applied.
- Left and right side punches including a hole forming process of punching left and right side punches 2 26 and 2 27 (punches) to form holes.
- the punches are inserted from a direction other than the reversing direction of the punches 22 6 and 22 7 (punch) and the ring 25 2 (die pin) or the reverse direction.
- the left and right side punches 22 6 and 22 7 (punches) are driven from a direction other than the retreat direction of the ring 25 2 (the die pin) or the reverse direction, so that a complicated shape such as cheese is produced. '' It can mold products of various shapes.
- the left and right side punches 22 6 and 22 7 are simultaneously driven from different directions to perform the molding, and the ring 25 is formed during forging. 2 (die pin) is retracted while applying back pressure. For this reason, it is possible to mold products of complex and various shapes.
- FIG. 87 is a side sectional view showing the structure of a multi-header formed by the die forging method according to the thirteenth embodiment of the present invention.
- the multi-header 140 of this example has a passage 141 penetrating left and right, and three upper and lower passages 142 arranged at right angles to the passage and communicating with the passage.
- FIGS. 88 to 90 are cross-sectional views schematically showing an apparatus for forging the multi-header of FIG. 87 and a forging process.
- This brass material forging device has a lower die and an upper die corresponding to the lower die.
- the lower die is a lower die 1 2, a left side punch 2 26 and a right It has a side punch 227 and a right hollow pin 255.
- the left side punch 2 26 slides through the pin insertion hole of the lower die 12.
- the right hollow pin 2 27 slides through the through hole of the lower die 12.
- the right side punch 2 27 slides in the right hollow pin 255.
- the lower die 12 is provided with three fixed punches 25 3 in a direction perpendicular to the through hole, and the outer periphery of each of the fixed punches 25 3 is respectively provided.
- a lower hollow die pin 252 that slides up and down is provided.
- forged material 140A is set on lower die 12 at a position to the left of leftmost hollow die pin 25a.
- the tips of the right side punch 2 27 and the right hollow pin 255 are in the same plane, and both ends are located to the left of the leftmost hollow die pin 25 2 a.
- the upper die 19 is lowered, and the lower surface of the upper die 19 is brought into contact with the upper surface of the lower die to clamp the mold.
- the left side punch 22 6 is inserted in the right direction.
- the right hollow pin 255 is retracted until the vicinity of the leftmost fixed punch 2553a is exposed.
- lower the leftmost lower hollow die pin 2 52 a lower the leftmost lower hollow die pin 2 52 a.
- the forged material flows and deforms, and a part of the left and right passages and a part of the leftmost vertical passage are formed.
- the hollow die spinning pin 25 2 (die spinning pin) was applied to one end face of the forging material, and was retracted while applying back pressure.
- the process involves forging by punching (punching) or pressing a die.
- a plurality of hollow die pins 25 2 are provided to form multiple deep holes. For this reason, a product having a complicated shape such as a multi-header having many holes can be formed.
- ADVANTAGE OF THE INVENTION forging of a water discharge device etc. which has a curved hollow part can also be performed efficiently.
- a product having a general outer shape is made of bronze rust or the like, and this is subjected to extensive cutting to obtain a final product shape.
- defects such as pinholes and sink marks peculiar to the product were apt to occur, and the yield was low.
- the machining time was long due to a considerable amount of cutting, and was not suitable for mass production.
- material yield was poor due to the large amount of cutting chips generated.
- a storage chamber having an opening for storing a flow rate or temperature adjustment unit and an inlet and an outlet, the outlet formed in the inner wall of the storage chamber, and an opening to the outside. And a curved outflow path for communicating the water outlet with the water outlet, and a die forging method for a water discharge device or the like, comprising the following steps.
- this die forging method it is possible to prevent the occurrence of defects such as pinholes and sink marks. Also, since there are few parts that require cutting, the processing time is shortened and mass production is possible. In addition, the small amount of cuttings improves material yield.
- Yet another embodiment of a die forging method includes the following steps.
- the second punch is inserted so that the partition located at the tip side of the second punch is closer to the storage chamber than the outflow port. be able to. This makes it easier to remove the partition wall in the fourth step.
- Yet another aspect of the die forging method includes the following steps.
- the inner wall of the curved outflow passage is formed by inserting a second punch into the material to form a hollow portion.
- the first punch is formed. It may be performed while inserted in the material. In this case, it becomes easier to remove the partition.
- Yet another aspect of the die forging method includes the following steps.
- the material has a first portion having a first cross-sectional shape along the insertion direction and a second portion having a second cross-sectional shape lacking a predetermined portion of the first cross-sectional shape.
- the first punch and the second punch can be efficiently formed even if they have a crossing shape.
- a second punch is inserted into the material to form a hollow portion, thereby roughly forming the inner wall of the curved outflow passage, and further comprising the second step.
- the punch is inserted while the first punch is inserted into the material.
- the second punch may be inserted until the tip of the second punch reaches a predetermined portion of the first punch. in this case In this case, the removal of the partition walls becomes easier.
- a gap is provided between the outer periphery of the material and the inner periphery of the mold, and in the second step, the first step is performed.
- the punch By inserting the punch, a part of the material is swelled in the gap, and in the third step, the second material is swelled with respect to the part of the material swelled in the gap.
- a punch may be inserted.
- the storage chamber and the outflow passage may be integrally formed.
- the dimensional accuracy of the product is improved and the process of polishing the outer shape of the product can be simplified since there is no seam as compared with a case where the storage chamber and the outflow channel are separately formed and then laminated. .
- a water discharge device comprising: a storage chamber having an opening for storing a flow rate or temperature adjustment unit, and an inlet and an outlet; and the outlet formed in the storage chamber wall and the outside. And an outflow passage communicating with the water outlet that has been opened to the water, characterized by being formed by forging.
- the die forging method of the present invention can also be applied to the production of a metal molded product having a first hole and a curved second hole.
- This die forging method includes the following steps.
- Yet another embodiment of the die forging method includes the following steps.
- the third step of forming the second hole is the third step of forming the second hole.
- the first punch and the second punch can be efficiently formed even if they have a crossing shape.
- the second punch has an arc shape having a constant radius of curvature along an axial direction, and the second punch moves circumferentially around the center of the arc.
- a curved second hole may be formed. In this way, it is possible to efficiently manufacture a product partially having an arcuate hollow portion.
- the first hole portion and the curved second hole portion are provided, and a communication port is formed in an inner wall of the first hole portion.
- the present invention can also be applied to the manufacture of a metal molded product that is connected to the second hole through the mouth. This die forging method uses the following 00/05008
- the curved second punch in the third step, may be inserted so that the partition wall is closer to the first hole than the communication port. I like it. This makes it easier to remove the barrier.
- Yet another die forging method includes the following steps.
- the apparatus for manufacturing a metal molded product according to the present invention is characterized in that a first punch and a curved second punch are inserted into a metal material to form a first hole and a curved second hole. I do.
- an apparatus for manufacturing a metal molded product comprising: a first portion having a first cross-sectional shape in a metal material, the first portion having a first cross-sectional shape; A second section having a second cross-sectional shape A first hole having a second hole and a first hole having a curved second punch configured to be inserted until the tip of the first punch reaches the predetermined portion. And a curved second hole.
- a pinion is formed on the curved second punch, and the curved second punch is slid by a rod-shaped member formed with a rack that engages with the pinion.
- the punch slides. Since the punch and the bar are slid by the rack and the pinion, the slide between the punch and the bar can be easily synchronized. For this reason, it is possible to cope with forming with large load.
- the device may further include a linear motion path coaxial with the rod member that linearly moves.
- the accuracy of the sliding trajectory of the rod-shaped member is further improved.
- an apparatus for manufacturing a metal molded product comprising: a metal material having a first punch, an arc-shaped second punch having a constant radius of curvature, and the second punch centered on the arc center. And a driving means for making a circumferential motion by inserting the first punch and the second punch to form a first hole and a curved second hole.
- an apparatus for manufacturing a metal molded product comprising: a metal material having a first punch, an arc-shaped second punch having a constant radius of curvature, and the second punch centered on the arc center.
- a heater may be embedded in the first punch and / or the second nonch. Since the temperature of the punch can be controlled by the heater, it is easy to set the molding conditions according to the material.
- a heater may be embedded in a mold other than the first punch and the second punch. Since the heater can also control the temperature of the part other than the punch, it is easy to set the molding conditions according to the material.
- FIG. 91 is an assembly view of a faucet device according to the 14th embodiment of the present invention.
- Fig. 92 is a component diagram of the faucet device component of Fig. 1 completed up to the cutting process, where (A) is a plan view, (B) is a longitudinal sectional view, and (C) is a side view.
- the faucet component 300 has a straight through-hole (storage room) 301 opening up and down, and a curved water discharge passage (curved shape) formed on the wall surface of the through-hole 310. (Outflow channel) 3 0 3
- the through hole 301 and the water discharge passage 303 communicate with each other.
- FIG. 93 is a view showing an intermediate forged product of the faucet device part of FIG. 92, (A) is a plan view, (B) is a longitudinal sectional view, and (C) is a side view.
- the intermediate forged product 300B of the faucet device component 300 has a lower end surface bulge portion 301a at a part of the lower end surface of the through passage 301.
- a partition wall portion (partition wall) 303 a is provided at a portion where the wall of the water discharge channel 303 enters the through channel 301.
- the lower end face bulge portion 301a and the bulkhead bulge portion 303a of the intermediate forged product are removed by cutting or the like to obtain a final faucet device part 300. Curved outflow channel of the same part 300 3 is formed into the final product shape during forging.
- FIG. 94 is a plan view schematically showing a forging device
- FIG. 95 is a side sectional view of the forging device ; this forging device has a lower die and an upper die corresponding to the lower die.
- the upper die has an upper die 19.
- the lower die consists of a lower die 12, a side straight punch (first punch) 460, a curved punch (second punch) 461, and a rotating bar that rotates this curved punch 461. It has an ejector pin 15 that slides up and down through the pin insertion hole of the lower die 12.
- the side straight punch 460 slides horizontally on the upper surface of the lower die 12.
- a notch 4600a is provided on the tip surface of the side straight punch 460.
- the shape of the notch 460 a matches the shape of the intermediate forged product 300 B except for the lower end face bulge 310 a and the bulkhead bulge 300 a of the through-passage 301 of the through-hole B 301. I do.
- the curved punch 46 1 is arranged so as to slide on an arc having a constant radius of curvature along the vertical axis of the upper surface of the lower die 12.
- a pinion 461a is formed on a part of the outside of the curved punch 461.
- the rotary bar 462 is a linear member, which is driven linearly on the upper surface of the lower die by a driving means (not shown).
- a rack 462 a is formed in the — portion of the rotating bar 462. This rack 462a mates with the pinion 461a of the curved punch 461.
- a heater 463 is attached to the upper die 19 and the lower die 12.
- each die is equipped with a thermocouple 464.
- the temperature measured by the thermocouple 464 is sent to a temperature controller, and the controller controls the temperature of the heater 463.
- a heat insulating material 465 and a SUS power bar 466 are wound around the outer periphery of each of the lower die and the upper die to keep the temperature.
- Sheet-like insulation material 467, SUS plate 468 and sheet-like insulation material 46 between the lower die 12 and the body frame and between the upper die 19 and the upper slider. 9 is interposed to prevent heat conduction to the main frame and upper slider.
- FIG. 96 to FIG. 100 are cross-sectional views schematically showing steps of forging an intermediate forged product of the faucet component of FIG.
- a side straight punch 460 is inserted into the forming hole 12 ".
- a part of the forged material 300B is deformed by flowing, and the intermediate material is subjected to an intermediate flow.
- the upper opening of the forged product and the hollow part are formed, and a part of the material swells into a curved stepped forming hole 12a.
- the rotary bar 462 is slid on a straight line (upward in the figure) while the side straight punch 460 is inserted.
- the curved punch 461 rotates inward (counterclockwise in the figure) due to the engagement between the rack and the pinion.
- the forged material bulging into the curved stepped forming hole 12a ' is flow-deformed by the tip of the curved punch 461 to form a hollow portion of the water discharge passage.
- the hollow portion is formed by the curved punch 461 while the material is swelled, the hollow shape is easily formed.
- the curved punch 461 while the side straight punch 4600 is inserted, blurring of the material is reduced.
- the side straight punch 460 is retracted to the left in the figure as shown in FIG. Also, rotate the rotating bar 462 backward in the figure and rotate the curved punch 461 outward (clockwise in the figure) to retract. After that, the upper die 19 is returned to the upper limit position.
- the intermediate molded product is processed by the above-described cutting process and the like, and unnecessary parts are removed to obtain a final molded product.
- the bulkhead partition portion 303 a is present in the cylindrical through-passage 301, it can be easily removed together with the lower end face bulk portion 301 a. .
- FIG. 101 is a view showing the structure of a shower hanger according to a fifteenth embodiment of the present invention, wherein (A) is a perspective view, (B) is a side view, and FIG. (D) is a plan view.
- the shaft hanger 3 110 is a substantially rectangular parallelepiped member, It has a hook portion 311 for hanging the shower on the surface, and a fixing portion 313 fixed to the wall on the other end surface.
- the hook 311 comprises a front-side force and a keyhole-shaped groove 311a penetrating the rear side.
- the groove 311a is open at the end face.
- the keyhole-shaped groove 311a is slightly inclined upward from the front surface to the rear surface.
- the fixing portion 3 13 is formed of a hole having a predetermined depth cut from the opposite end surface.
- This hole consists of a rectangular section 3 13 a with a rectangular cross section from the end face to a certain height, and an H-shaped section 3 13 b with a H-shaped cross section from the bottom to the bottom of the rectangular section. ing.
- FIGS. 102 to 108 are cross-sectional views schematically showing an apparatus for forging the shower hangers of FIG. 101 and a forging process.
- This forging device has a lower die and an upper die corresponding to the lower die.
- the lower die has a lower die 12, a sign 470, and an ejector pin 15.
- the side hammer 470 is provided so as to slide the lower die 12 diagonally upward.
- the cross-sectional shape of the scinches 470 is the same as the shape of the keyhole-shaped groove 311a of the hook 311 of the finger 310.
- the sliding direction of the sign 470 coincides with the inclination direction of the keyhole-shaped groove 311a of the hook portion 311.
- the lower die 12 is formed with a stepped hole 12 a having a shape corresponding to the outer shape of the end face of the hook portion 3 11.
- the upper die has an upper die 19 and an upper punch 471 which slides up and down in the upper die.
- the upper punch 471 has a notch 471a that matches the shapes of the rectangular part 313a and the H-shaped part 313b of the fixing part 313 of the piston 3110. I have.
- the mold is opened and heated.
- the forged material 31OA is set in the stepped hole 12a of the lower die 12.
- the upper die 19 is lowered, and the lower surface of the upper punch 471 is brought into contact with the forging material 31OA. Note that it is not always necessary to abut.
- FIG. 104 when the upper punch 47 1 is lowered, the forged material 31 OA is deformed by flowing, and a part of the pressed material is pressed by the side punch 4 7 0 of the lower die 12. And a stepped hole 12 2a, forming a hook 311 having a keyhole-shaped groove.
- the upwardly flowing portion enters the notch 471a of the upper punch 471, and the fixed portion 313 is formed.
- the upper punch 471 is raised.
- the upper die 19 is raised.
- the side nose and punch 470 are retracted, and as shown in FIG. 108, the ejector pins 15 are raised to discharge the molded article.
- FIG. 109 is a longitudinal sectional view showing the structure of a part X according to a sixteenth embodiment of the present invention.
- the part X320 has a cylindrical shape with a bottom as a whole.
- a shaft hole 3 2 1 having a constant inner diameter is formed in the center of the part X.
- the outer surface is composed of an upper small diameter portion 3 22, a flange portion 3 2 3, a large diameter portion 3 2 4, and a lower small diameter portion 3 2 5 from the top.
- FIGS. 110 to 119 are diagrams schematically showing an apparatus for forging the part X of FIG. 1 and a forging process.
- This forging device has a lower die and an upper die corresponding to the lower die.
- the lower die has a lower die 1 2, a lower punch 480 that slides up and down the lower die 12, and a lower inner punch 4 8 that slides up and down inside the lower outer punch 480. With one.
- the lower inner punch 4 8 1 is connected to the factory (not shown)
- the lower outer. 480 is not connected to the factory.
- a flange 480a is formed at the lower end of the punch 480. Same ,.
- the rise of the punch 480 is locked by the flange 480a contacting the upper locking surface 12b in the lower die. Same ,.
- the lowering of the punch 480 is stopped by the flange 480a coming into contact with the lower locking surface 12c of the lower die 12.
- the upper die consists of an upper die 1 and an upper die that slides up and down in the upper die. 482.
- a flange 482 a is formed at the upper end of the punch 482. No. The lowering of the punch 482 is stopped by the contact of the flange 482a with the lower locking surface 19c of the upper die 19.
- a stepped hole 12 a is formed on the upper surface of the lower die 12.
- a stepped hole 19 a is also formed on the lower surface of the upper die 19, facing the stepped hole. Is formed.
- the stepped forming hole is for forming the upper small diameter portion and the flange portion of the part X. When the mold is clamped, these stepped holes communicate with each other.
- the heated forged material 32 OA is set in the stepped hole 12 a of the lower die 12.
- the upper die 19 and the upper die Simultaneously lower the punches 4 82 and lower the upper die 1 9 into contact with the upper surface of the lower die 1 2 and tighten the mold.
- the lower inner punch 481 and the lower inner punch 480 are raised. At this time, the forged material is pressed from below and flows and deforms. Then, the upper small-diameter portion 3 2 2 and the flange portion 3 2 3 are formed, and a part of the shaft hole 3 2 1 starts to be formed.
- the upper punch 482 is lowered. No, Press force and lower inner pressure. Punch 4 8 1 and lower channels. The lower inner punch 481 and the lower outer cylinder are caused by the pressure difference from the back pressure to the punch 480. 480 drops. At this time, the shaft hole
- Lower Outano ,. 480, as shown in FIG. Flange 480a is the lower die
- the upper punch 482 is raised.
- the upper die 19 is raised as shown in FIG. Next, as shown in FIG. Raise 4 8 1.
- the lower outer punch 480 is raised together with the lower inner punch 481 to discharge the molded article.
- FIG. 120 is a longitudinal sectional view showing the structure of the component Y according to the seventeenth embodiment of the present invention.
- the part Y330 is a solid conical part as a whole.
- the part Y33 has a flange portion 331, and a large-diameter portion 332, a small-diameter portion 333, and a shaft portion 334 are continuously arranged below the flange portion 331. It is formed.
- FIG. 122 to FIG. 130 are diagrams schematically showing an apparatus for forging the part Y of FIG. 120 and a forging process.
- This forging device has a lower die and an upper die corresponding to the lower die.
- the lower die has a lower die 1 2 and a lower die that slides the lower die 1 2 up and down. It has a single punch 490 and double lower outer punch.
- the lower inner punch 490 is connected to an actuator (not shown), but the lower outer punch is not connected to the actuator.
- Lower outer Lynch consists inner outer D inch 4 9 1 and the outer outer 0 down switch 4 9 2.
- a flange 4922 a is formed at the lower end of the outer outer punch 492. Same ,. The rise of the pinch 492 is locked by the flange 4922a coming into contact with the upper locking surface 12c of the lower die 12. Same. The lowering of the pinch 492 is stopped by the flange 4922a contacting the lower outer locking surface 12d of the lower die 12.
- a flange 491a is formed at the lower end of the inner outer launch 4g1. Same ,. The rise in the height of 491 is due to the fact that the flange 491a is out. I Ri is engaged in and the child that comes into contact with the bench 4 9 2 of the off La Nji 4 9 2 a. The lowering of the punch 492 is stopped by the flange 4922a contacting the lower die 12 with the lower inner locking surface 12e.
- the lower die 12 has a stepped hole 12 a formed therein.
- the upper die has an upper die 19 and an upper punch 493 that slides in the upper die 19 up and down.
- a flange 493 a is formed at the upper end of the upper punch 493. Same ,.
- the lowering of the punch 493 is stopped by the contact of the flange 493a with the lower locking surface 19c of the upper die 19.
- the heated forged material 330 A is set in the stepped forming hole 12 a of the lower die 12 with the mold opened.
- the upper die 19 and the upper punch 493 are simultaneously lowered, and the lower surface of the upper die 19 is brought into contact with the upper surface of the lower die 12 to form the mold. Tighten.
- the upper punch 493 is continuously lowered. No, Pressing force of the punch 4 9 3 and lower inner. 490 and lower outer. Due to the pressure difference from the back pressure to the lower unch, the lower inner 490 and the lower outer unch are simultaneously lowered. The outer outer nose 492 descends until the flange 492a contacts the outer locking surface 12d. At this time, partial force forming of the flange portion 331 and the large diameter portion 332 begins. Subsequently, as shown in FIG. 125, the upper punch 493 is lowered, and the lower inner punch 490 and the inner outer punch 491 are lowered simultaneously. Outer outer. The punch 492 is locked to the lower locking surface 12 d of the lower die 12. The inner outer punch 491 descends until it comes into contact with the inner locking surface 12e. At this time, the flange portion 331 and the large-diameter portion 332 are further formed, and the small-diameter portion 333 starts to be formed.
- the upper punch 493 is engaged with the flange 493a of the punch 493 by the lower engaging surface 19c of the upper die 19. Lower until contact.
- the lower inner punch 490 is descending continuously. At this time, the flange portion 331, the large diameter portion 3332, the small diameter portion 3333, and the shaft portion 334 are formed. Back pressure continues to be applied to the lower inner 490.
- the upper punch 493 is raised.
- the upper die 19 is raised.
- the lower inner punch 490 is raised.
- lower outer as shown in FIG. The punches 491 and 492 are further raised together with the lower inner punch 490 to discharge the molded product.
- FIG. 13 1 is a longitudinal sectional view showing the structure of a part Z according to a seventeenth embodiment of the present invention.
- the part Z340 has a cylindrical shape as a whole and an H-shaped vertical section.
- the part Z340 has an upper recess 341 and a lower recess 342.
- a flange 343 is formed near the upper end of the upper concave portion 341.
- the flange 344 is formed with an annular protrusion 344 extending upward.
- FIGS. 1332 to 141 are views schematically showing an apparatus for forging the part X of FIG. 131 and a forging process.
- This forging device has a lower die and an upper die corresponding to the lower die.
- the lower die includes a lower die 12, a lower inner unch 500 and a lower outer ench 501, which slide vertically in the lower die 12.
- the lower punch 501 is connected to the factory (not shown), but the lower inner punch.
- the channel 500 is not connected to the factory.
- the lower outer punch 501 has an upper flange 501a at the lower end.
- a rod 501b is provided on the lower surface of the flange 501a so as to extend downward.
- the lower flange 501c is attached to the lower end of the rod 501b.
- the lower inner half 500 has a flange 500a at the lower end.
- Rod 5 0 1 b of the lower outer 0 inch 5 0 1 is in slide can penetrate the full La Nji 5 0 0 a a Want emission Na one punch 5 0 0. Therefore, the lower inner punch 500 is moved between the upper flange 501a and the lower flange 501c of the lower outer punch 501 along the mouth 501b. Slide. The lower inner punch 500 is lowered by the flange 500 a contacting the lower locking surface 12 b of the lower die 12.
- the upper die has an upper die 19 and an upper die that slides up and down inside the upper die 19. It has a punch 502.
- Upper punch 50 2 has flange 50 at the upper end
- the latch 502 is locked when the flange 502 a contacts the lower locking surface 19 c of the upper die 19.
- a molding hole 12 a is formed on the upper surface of the lower die 12.
- a stepped molding hole 19a is also formed on the lower surface of the upper die 19 at a portion corresponding to the molding hole. These molding holes communicate when the mold is clamped.
- the heated forging material 34 O A is set in the forming hole 12 a of the lower die 12.
- the upper die 19 and the upper die. 50 2 force Lowers at the same time, the lower surface of the upper die 19 contacts the upper surface of the lower die 12 and is clamped.
- the upper punch 502 is lowered. Due to the pressure difference between the upper punch 500 and the back pressure to the lower inner punch 500 and the lower inner punch 501, the lower outer punch 501 and The lower inner punch 500 lowers. At this time the upper concave
- the upper punch 502 is Lower the flange 502 a of the punch 502 into contact with the lower locking surface 19 c of the upper die 19.
- the inch 501 is further descended along the rod 500b of the lower inner nonch 500.
- Lower Outano Inch 5 0 1 Fall to the same 0 inch 5 0 1 on off La Nji 5 0 1 a comes into contact with off La Nji 5 0 0 a lower I runner one punch 5 0 0. It is not always necessary to make contact.
- the upper concave portion 341 is completely formed by the upper punch 502.
- the lower outer As a result, the lower concave portion 3 4 2 is formed.
- the upper punch 502 is raised.
- the upper die 19 is raised as shown in FIG.
- lower outerano as shown in Figure 140. Raise the height of 501.
- the punch 500 is raised together with the lower outer punch 501 and the molded product is discharged.
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99931517A EP1123764A1 (en) | 1998-07-24 | 1999-07-23 | Die forging method |
AU48003/99A AU4800399A (en) | 1998-07-24 | 1999-07-23 | Die forging method |
CA002338376A CA2338376A1 (en) | 1998-07-24 | 1999-07-23 | Die forging method |
Applications Claiming Priority (20)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10/209173 | 1998-07-24 | ||
JP10209173A JP2000042674A (ja) | 1998-07-24 | 1998-07-24 | 黄銅材の鍛造方法、黄銅材用鍛造装置及び黄銅製吐水機器 |
JP10275792A JP2000102834A (ja) | 1998-09-29 | 1998-09-29 | 管状台座及びその製造方法 |
JP10/275792 | 1998-09-29 | ||
JP10/284637 | 1998-10-06 | ||
JP28463798 | 1998-10-06 | ||
JP34556298A JP2000176596A (ja) | 1998-10-06 | 1998-12-04 | 黄銅製羽根車及びその製造方法 |
JP10/345562 | 1998-12-04 | ||
JP36814998A JP2000193501A (ja) | 1998-12-24 | 1998-12-24 | 流量計、金属成形品の製造方法および金属成形品の製造装置 |
JP10/368149 | 1998-12-24 | ||
JP11070155A JP2000263178A (ja) | 1999-03-16 | 1999-03-16 | 型鍛造方法及び型鍛造装置 |
JP11/70156 | 1999-03-16 | ||
JP11/70155 | 1999-03-16 | ||
JP11070156A JP2000263179A (ja) | 1999-03-16 | 1999-03-16 | 型鍛造方法及び型鍛造装置 |
JP7667299 | 1999-03-19 | ||
JP11/76672 | 1999-03-19 | ||
JP11/122856 | 1999-04-28 | ||
JP11122856A JP2000314157A (ja) | 1999-04-28 | 1999-04-28 | 吐水装置及びその製造方法 |
JP11/157297 | 1999-06-04 | ||
JP15729799 | 1999-06-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000005008A1 true WO2000005008A1 (fr) | 2000-02-03 |
Family
ID=27580094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/003964 WO2000005008A1 (fr) | 1998-07-24 | 1999-07-23 | Procede de forgeage par matrices |
Country Status (5)
Country | Link |
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EP (1) | EP1123764A1 (ja) |
CN (1) | CN1309592A (ja) |
AU (1) | AU4800399A (ja) |
CA (1) | CA2338376A1 (ja) |
WO (1) | WO2000005008A1 (ja) |
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JPS55156631A (en) * | 1979-05-25 | 1980-12-05 | Mitsubishi Heavy Ind Ltd | Forming method of axis-symmetrical parts |
JPS5884632A (ja) * | 1981-11-12 | 1983-05-20 | Seiko Instr & Electronics Ltd | 超塑性金属による密閉鍛造方法 |
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JPH01228638A (ja) * | 1988-03-07 | 1989-09-12 | Susumu Ito | 末広がりツバ形状の加工方法及びその予備成形型 |
JPH01272734A (ja) * | 1988-04-22 | 1989-10-31 | Kobe Steel Ltd | 熱間加工用耐食性銅合金 |
JPH02274341A (ja) * | 1989-04-13 | 1990-11-08 | Komatsu Ltd | 歯車の成形方法 |
JPH0417934A (ja) * | 1990-05-11 | 1992-01-22 | T M T:Kk | 深孔付き製品の鍛造方法及びその装置 |
JPH04344845A (ja) * | 1991-05-17 | 1992-12-01 | Kubota Corp | 鍛造成形方法および装置 |
JPH0639471A (ja) * | 1992-07-23 | 1994-02-15 | Mitsubishi Materials Corp | 溶解材鍛造部品の製造方法 |
JPH06114489A (ja) * | 1992-10-02 | 1994-04-26 | Mitsubishi Materials Corp | スクロール羽根の製造方法 |
JPH06126369A (ja) * | 1992-10-22 | 1994-05-10 | Toyota Motor Corp | スプライン成形方法 |
JPH06158251A (ja) * | 1992-11-25 | 1994-06-07 | Sumitomo Metal Mining Co Ltd | 塑性加工における連続焼鈍方法及び装置 |
JPH07166279A (ja) * | 1993-12-09 | 1995-06-27 | Kobe Steel Ltd | 耐食性、打抜き加工性及び切削性が優れた銅基合金及びその製造方法 |
JPH07236937A (ja) * | 1994-03-01 | 1995-09-12 | Mitsubishi Motors Corp | 傘歯車の製造方法 |
JPH1046364A (ja) * | 1996-07-31 | 1998-02-17 | Toto Ltd | 黄銅材及びその製造方法、黄銅製品及びその製造方法並びに水栓金具部品及びその製造方法 |
-
1999
- 1999-07-23 AU AU48003/99A patent/AU4800399A/en not_active Abandoned
- 1999-07-23 WO PCT/JP1999/003964 patent/WO2000005008A1/ja not_active Application Discontinuation
- 1999-07-23 CA CA002338376A patent/CA2338376A1/en not_active Abandoned
- 1999-07-23 CN CN99808751A patent/CN1309592A/zh active Pending
- 1999-07-23 EP EP99931517A patent/EP1123764A1/en not_active Withdrawn
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JPS4923970B1 (ja) * | 1970-11-17 | 1974-06-19 | ||
JPS55156631A (en) * | 1979-05-25 | 1980-12-05 | Mitsubishi Heavy Ind Ltd | Forming method of axis-symmetrical parts |
JPS5884632A (ja) * | 1981-11-12 | 1983-05-20 | Seiko Instr & Electronics Ltd | 超塑性金属による密閉鍛造方法 |
JPS6127137A (ja) * | 1984-07-16 | 1986-02-06 | Mitsubishi Heavy Ind Ltd | 歯車の鍛造方法 |
JPS62240129A (ja) * | 1986-04-11 | 1987-10-20 | Honda Motor Co Ltd | コンロツドの成形方法 |
JPS63101137U (ja) * | 1986-12-18 | 1988-07-01 | ||
JPS63203735A (ja) * | 1987-02-17 | 1988-08-23 | Sumitomo Electric Ind Ltd | 金属粉末成形体の高速超塑性変形加工法 |
JPH01228638A (ja) * | 1988-03-07 | 1989-09-12 | Susumu Ito | 末広がりツバ形状の加工方法及びその予備成形型 |
JPH01272734A (ja) * | 1988-04-22 | 1989-10-31 | Kobe Steel Ltd | 熱間加工用耐食性銅合金 |
JPH02274341A (ja) * | 1989-04-13 | 1990-11-08 | Komatsu Ltd | 歯車の成形方法 |
JPH0417934A (ja) * | 1990-05-11 | 1992-01-22 | T M T:Kk | 深孔付き製品の鍛造方法及びその装置 |
JPH04344845A (ja) * | 1991-05-17 | 1992-12-01 | Kubota Corp | 鍛造成形方法および装置 |
JPH0639471A (ja) * | 1992-07-23 | 1994-02-15 | Mitsubishi Materials Corp | 溶解材鍛造部品の製造方法 |
JPH06114489A (ja) * | 1992-10-02 | 1994-04-26 | Mitsubishi Materials Corp | スクロール羽根の製造方法 |
JPH06126369A (ja) * | 1992-10-22 | 1994-05-10 | Toyota Motor Corp | スプライン成形方法 |
JPH06158251A (ja) * | 1992-11-25 | 1994-06-07 | Sumitomo Metal Mining Co Ltd | 塑性加工における連続焼鈍方法及び装置 |
JPH07166279A (ja) * | 1993-12-09 | 1995-06-27 | Kobe Steel Ltd | 耐食性、打抜き加工性及び切削性が優れた銅基合金及びその製造方法 |
JPH07236937A (ja) * | 1994-03-01 | 1995-09-12 | Mitsubishi Motors Corp | 傘歯車の製造方法 |
JPH1046364A (ja) * | 1996-07-31 | 1998-02-17 | Toto Ltd | 黄銅材及びその製造方法、黄銅製品及びその製造方法並びに水栓金具部品及びその製造方法 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102179464A (zh) * | 2011-03-25 | 2011-09-14 | 西安交通大学 | 一种汽车用发电机爪极成形工艺 |
CN102319850A (zh) * | 2011-08-04 | 2012-01-18 | 南京迪威尔重型锻造股份有限公司 | 一种利用组合式胎模制造大型法兰锻件的方法 |
CN113909326A (zh) * | 2021-08-31 | 2022-01-11 | 宁波固强机械有限公司 | 一种用于制造能量回收器盖板的模具及能量回收器盖板的制造方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1123764A1 (en) | 2001-08-16 |
CA2338376A1 (en) | 2000-02-03 |
AU4800399A (en) | 2000-02-14 |
CN1309592A (zh) | 2001-08-22 |
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