WO2014185357A1 - カップ状部材のプレス成形方法 - Google Patents
カップ状部材のプレス成形方法 Download PDFInfo
- Publication number
- WO2014185357A1 WO2014185357A1 PCT/JP2014/062496 JP2014062496W WO2014185357A1 WO 2014185357 A1 WO2014185357 A1 WO 2014185357A1 JP 2014062496 W JP2014062496 W JP 2014062496W WO 2014185357 A1 WO2014185357 A1 WO 2014185357A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- upper tool
- tool
- hole
- central axis
- inclined portion
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/26—Deep-drawing for making peculiarly, e.g. irregularly, shaped articles
Definitions
- the present invention relates to a press molding method for cup-shaped members.
- the cup-shaped member is a member having a shape having a bottom and a vertical wall portion continuously rising from the bottom, and is widely used as a machine part in applications such as containers and rotating members. About the thickness of the bottom part and vertical wall part of such a cup-shaped member, depending on the use used, thickness may be partially changed about a specific site
- a method for changing the thickness of the vertical wall portion many methods as disclosed in, for example, Patent Documents 1 to 8 and Non-Patent Document 1 have been proposed.
- Patent Document 9 discloses a method for forming a cup-shaped member having a bottom portion having a thickness difference from a plate-shaped material. There are few disclosure examples compared with the method of changing the wall thickness of a vertical wall part.
- Patent Document 9 discloses a molding method for molding a cup-shaped member having a bottom portion having a thickness difference using a split mold from a plate-shaped material.
- this molding method has five steps, a large number of molds are required, and there is a concern about an increase in mold costs and a decrease in productivity due to a large number of mold replacement operations.
- the cup-shaped member press-molding method of the present invention is a cup-shaped member press-molding method in which, when a plate-shaped material is molded into a cup-shaped member, the bottom thickness of the cup-shaped member is partially increased.
- a cylindrical first upper tool the central axes of which are arranged coaxially with each other, and arranged along the outer periphery of the first upper tool so that the tip surface approaches the central axis as it goes downward
- a cylindrical second upper tool formed by an inclined upper tool inclined portion, a cylindrical third upper tool arranged along the outer periphery of the second upper tool, and the first upper tool
- a first lower tool formed from a hole inclined part inclined so as to approach the hole, and a hole bottom surface part connected to the lower end of the hole inclined part and extending in a direction orthogonal to the central axis;
- the first upper tool and the second upper tool are relatively moved in a direction in which the first upper tool and the second upper tool are brought closer to the first lower tool.
- FIG. 10 is a schematic view of a mold used in the third embodiment (n-1th thickening process). It is the schematic of the metal mold
- FIG. 8A and 8B are explanatory diagrams of the operation of the comparative mold.
- FIG. 8A shows a state before molding
- FIG. 8B shows a state after molding.
- the mold of the comparative example includes a first upper tool 37, a second upper tool 38, a third upper tool 39, and a lower tool 40.
- a small process and a simple method are as follows. First, the flat material 1 is installed on the upper part of the lower tool 40. Next, as shown in FIG.
- a cup-shaped member is formed in the hole 40a of the lower tool 40 by lowering the first upper tool 37, the second upper tool 38, and the third upper tool 39. To do. At this time, by pressing the upper end of the vertical wall with the third upper tool 39, the material can be flowed to the portion where the thickness of the bottom is changed. In this way, the gap formed between the second upper tool 38 and the hole 40a of the lower tool 40 is filled with the material to partially change the thickness of the predetermined bottom portion.
- the connecting portion P between the lower end portion and the bottom portion of the vertical wall has a substantially right-angle shape, the resistance when the material passes through this portion increases.
- the upper edge of the vertical wall is pushed by the third upper tool 39, and the load necessary to cause the material to flow into the portion where the thickness of the bottom portion is changed becomes excessive, and the load capacity of the press molding apparatus is limited and practically used. There are cases where molding is impossible.
- the present invention reduces the press load to such an extent that there is no practical problem, and has a cup shape in which the thickness of the bottom portion is partially changed from a flat material in as few steps as possible.
- a molding method for molding a member is provided.
- the press molding method of the present embodiment includes a rough molding process and a finish molding process.
- the rough forming step has a first step and a second step described in claim 1.
- the finish forming step has the third step described in claim 1.
- FIG. 1 is a schematic cross-sectional view of a mold for effectively carrying out a rough forming process.
- the mold (corresponding to the first mold) used in the rough forming process includes a first upper tool 2, a second upper tool 3, a third upper tool 4, and a first lower tool 5.
- the tools 2 to 5 are arranged coaxially with respect to the central axis L1 with respect to the central axis L1.
- the first lower tool 5 has a knockout member 6 that is axisymmetric with respect to the central axis L1.
- the tools 2 to 5 and the knockout member 6 are respectively connected to a drive mechanism (not shown) (for example, a motor or a hydraulic device), and are moved up and down independently in the direction of the central axis L1 by operating each drive mechanism.
- a controller (not shown) controls the lifting and lowering operations of the tools 2 to 5 and the knockout member 6 by controlling the driving of each driving mechanism.
- a CPU or MPU can be used as the controller.
- a press molding apparatus is configured by the mold, the drive mechanism, and the controller.
- the knockout member 6 may be a fixed type that cannot be moved. Also, other tools described later are provided with a drive mechanism similar to that of the first mold.
- the first upper tool 2 is formed in a cylindrical shape.
- the second upper tool 3 is formed in a cylindrical shape, and its inner peripheral surface is arranged along the outer periphery of the first upper tool 2.
- the tip surface (lower end surface) of the second upper tool 3 is formed by an upper tool inclined portion 3a that is inclined so as to approach the central axis L1 as it goes downward.
- the third upper tool 4 is formed in a cylindrical shape and is disposed along the outer periphery of the second upper tool 3.
- the first lower tool 5 has a lower tool hole 5a that allows the first upper tool 2, the second upper tool 3, and the third upper tool 4 to enter.
- the lower tool hole portion 5a is provided continuously with a hole vertical wall portion 5b extending along the outer peripheral surface of the third upper tool 4 entering the lower tool hole portion 5a, and a lower end portion of the hole vertical wall portion 5b. From the hole inclined part 5c which inclines so that it may approach the center axis
- a bottom hole 5e extending in the direction of the central axis L1 is formed around the central axis L1 of the hole bottom 5d.
- a knockout member 6 is disposed inside the bottom hole 5e.
- the distal end surface (upper end surface) of the knockout member 6 is disposed at a position that is substantially flush with the hole bottom surface portion 5d.
- the “bottom surface bottom portion” according to claim 1 is formed by the hole bottom surface portion 5 d and the tip surface of the knockout member 6.
- the knockout member 6 may be formed integrally with the first lower tool 5.
- the angle A1 when the angle (acute angle side) between the hole bottom surface part 5d and the hole inclined part 5c is A1, the angle A1 can be set to 20 ° or more and 60 ° or less. preferable. The reason for limiting the angle A1 will be described later. Moreover, as shown in FIG. 1, it is preferable that the angle formed by the upper tool inclined portion 3a and the horizontal plane is substantially the same as the angle A1.
- FIG. 2 is a schematic view of a mold for effectively carrying out the finish molding process.
- the molds (corresponding to the second mold) used in the finish molding process are the first finishing upper tool 7, the second finishing upper tool 8, the third finishing upper tool 9, and the first finishing lower tool 10.
- the tools 7 to 10 have a central axis coaxial with each other and are arranged symmetrically with respect to the central axis L2.
- the first finishing tool 10 has a knockout member 11 that is axisymmetric with respect to the central axis L2.
- the first finishing upper tool 7 is formed in a cylindrical shape.
- the second finishing upper tool 8 is formed in a cylindrical shape, and the inner peripheral surface thereof is arranged along the outer periphery of the first finishing upper tool 7.
- the tip surface of the second finishing upper tool 8 is formed by a flat portion 8a extending in a direction orthogonal to the central axis L2.
- the third finishing upper tool 9 is formed in a cylindrical shape, and is arranged along the outer periphery of the second finishing upper tool 8.
- the second finishing upper tool 8 has a shape in which the upper tool inclined portion 3a of the second upper tool 3 described above is omitted.
- the first finishing tool 10 has a hole 10 a that allows the first finishing tool 7, the second finishing tool 8, and the third finishing tool 9 to enter.
- the hole portion 10a is connected to the hole vertical wall portion 10b extending along the outer peripheral surface of the third finishing upper tool 9 entering the hole portion 10a and the lower end portion of the hole vertical wall portion 10b, and the central axis L2 And a hole bottom surface portion 10d extending in a direction substantially perpendicular to the surface.
- a bottom hole 10e extending in the direction of the central axis L2 is formed around the central axis L2 of the hole bottom 10d.
- a knockout member 11 formed with substantially the same dimensions as the knockout member 6 of the first lower tool 5 is arranged inside the bottom hole 10e.
- the distal end surface of the knockout member 11 is disposed at a position that is substantially flush with the hole bottom surface portion 10d.
- the hole vertical wall portion 10b of the hole portion 10a is formed to have substantially the same inner diameter as the hole vertical wall portion 5b of the first lower tool 5 described above.
- the first finishing lower tool 10 has a shape in which the hole inclined portion 5c of the first lower tool 5 described above is omitted.
- FIGS. 3A to 3D are explanatory views of the operation of the mold shown in FIG. 1 used in the rough forming process.
- the first upper tool 2, the second upper tool 3 and the third upper tool 4 are moved by the mold drive mechanism (not shown), and the material 1 is moved to the first lower tool 5. Raise to a height that does not hinder the installation at the top.
- a flat plate-like material 1 having a disk shape is installed on the upper portion of the first lower tool 5.
- the knockout member 6 of the second lower tool 5 is installed so that the tip surface is substantially flush with the hole bottom surface portion 5d of the first lower tool 5.
- the first upper tool 2 is lowered in the direction of the arrow and pushed into the lower tool hole 5 a while bending the material 1, and the bottom center portion 1 a of the material 1 is moved to the first upper tool. 2 and the first lower tool 5 (corresponding to the first step). Accordingly, the material 1 is fixed in a state of being positioned in the lower tool hole 5a.
- the first upper tool 2 is lowered has been described.
- the present invention is not limited to this case, and it is sufficient that the first upper tool 2 and the first lower tool 5 can be relatively moved in the approaching direction.
- the first lower tool 5 may be raised without lowering the first upper tool 2.
- first lower tool 5 may be raised while lowering the first upper tool 2.
- the other part of the mold is placed between the molds. It is necessary to control the positions of the dies so as not to be pinched.
- the timing for completing the process illustrated in FIG. 3B can be determined from the moving position of the tool, the press load (load value), and the like.
- the controller stores in advance the movement stroke amount of the first upper tool 2 from the standby position in FIG. 3A to the completion position in FIG. 3B, and the first movement tool amount is reached when the stored movement stroke amount is reached.
- the upper tool 2 may be stopped.
- the controller may store in advance the press load applied to the mold when the completion position in FIG. 3B is reached, and stop the first upper tool 2 when the stored press load is reached.
- the second upper tool 3 that is separated from the material 1 has a gap between the upper tool inclined portion 3 a and the hole inclined portion 5 c of the first lower tool 5. It is lowered in the direction of the arrow to a position where the predetermined interval T is reached.
- the material 1 is bent according to the shape of the upper tool inclined portion 3a of the second upper tool 3, and the bottom center portion 1a, the bottom outer edge portion 1b, and the material vertical wall portion 1c. Is formed into a shape consisting of (corresponding to the bending step of the first step).
- the bottom center portion 1a is a portion of the material 1 that extends in a direction orthogonal to the central axis L1.
- the bottom outer edge portion 1b is a portion of the material 1 that is located in a region sandwiched between the upper tool inclined portion 3a and the hole inclined portion 5c.
- the material vertical wall 1c is a portion of the material 1 that extends in the direction of the central axis L1.
- the predetermined gap T needs to be set to a size capable of increasing the thickness of the bottom outer edge portion 1b in the second step of FIG. 3D described later. That is, the predetermined gap T needs to be larger than the plate thickness of the material 1 before thickening.
- the timing for completing the process illustrated in FIG. 3C can be determined from the moving position of the tool, the press load, and the like. Since the specific method was mentioned above, the description is abbreviate
- the third upper tool 4 is lowered in the direction of the arrow.
- the material flows between the upper tool inclined portion 3a and the hole inclined portion 5c from the raw material vertical wall portion 1c by pushing the cylindrical end portion 1d which is the upper end portion of the raw material vertical wall portion 1c with the third upper tool 4. And increase the thickness of the bottom outer edge 1b (corresponding to the second step).
- the material vertical wall portion 1c of the material 1 is formed in the thickness direction of the material 1 (with respect to the central axis L1) by the outer peripheral surface of the second upper tool 3 and the hole vertical wall portion 5c of the first lower tool 5. (Direction orthogonal).
- the outer peripheral surface of the second upper tool 3 is an end surface of the second upper tool 3 formed in a direction parallel to the central axis L1.
- the inner peripheral surface of the first lower tool 5 is an inner peripheral side end surface of the first lower tool 5 formed in a direction parallel to the central axis L1.
- the second upper tool 3 moves up and down independently of the first upper tool 2. Therefore, the clearance gap formed between the upper tool inclination part 3a of the 2nd upper tool 3 and the hole inclination part 5c of the 1st lower tool 5 can be changed arbitrarily. By changing the gap, the thickness of the bottom outer edge 1b of the material 1 can be easily increased or decreased.
- the angle A1 formed by the hole bottom surface part 5d and the hole inclined part 5c is less than 10 °, the material flows from the material vertical wall 1c of the material 1 to increase the thickness of the bottom outer edge 1b.
- the angle A1 is preferably set to 20 ° or more.
- the present invention is not limited to this case, and the second upper tool 3 and the third upper tool 4 and the first lower tool 4 It is only necessary that the tool 5 can move relatively.
- the first upper tool 2 and the first lower tool 5 may be raised.
- the first upper tool 2 and the first lower tool 5 may be raised while lowering the second upper tool 3 and the third upper tool 4.
- the timing for completing the process illustrated in FIG. 3D can be determined from the moving position of the tool, the press load, and the like. Since the specific method was mentioned above, the description is abbreviate
- FIGS. 4A to 4C are explanatory views of the operation of the mold shown in FIG. 2 used in the finish molding step.
- the first finishing upper tool 7, the second finishing upper tool 8, and the third finishing upper tool 9 were formed in the rough forming step by a mold drive mechanism (not shown).
- the material 1 is raised to a height that does not hinder the installation of the material 1 in the hole 10a of the first finishing tool 10.
- the material 1 is installed in the hole 10 a of the first finishing tool 10.
- the knockout member 11 of the first finishing tool 10 is installed such that the tip surface is substantially the same as the bottom surface portion 10 d of the hole of the first finishing tool 10.
- the first finishing upper tool 7 is lowered in the direction of the arrow, and the bottom center portion 1 a of the material 1 is moved between the first finishing upper tool 7 and the first finishing lower tool 10. Clamp between them. Thereby, the raw material 1 is positioned and fixed in the hole 10a.
- the first finishing upper tool 7 is lowered has been described.
- the present invention is not limited to this case, as long as the first finishing upper tool 7 and the first finishing lower tool 10 can be relatively moved in the approaching direction. .
- the first finishing tool 10 may be raised without lowering the first finishing tool 7.
- the first finishing lower tool 10 may be raised while lowering the first finishing upper tool 7.
- the mold is formed in another part of the mold. It is necessary to control the positions of the dies so that they are not sandwiched between them.
- the second finishing upper tool 8 separated from the material 1 is moved to a position where the gap between the flat portion 8a and the first finishing lower tool 10 becomes a predetermined gap.
- the predetermined gap is preferably the thickness of the desired bottom outer edge 1b of the material 1.
- the bottom outer edge portion 1b is pushed into the hole bottom surface portion 10d by the flat portion 8a of the second finishing upper tool 8. Therefore, the bottom outer edge portion 1b extends in a direction substantially orthogonal to the central axis L2 of the material 1, and is configured as the bottom portion of the material 1 together with the bottom center portion 1a.
- the angle A1 formed by the hole bottom portion 5d and the hole inclined portion 5c in the rough forming step exceeds 60 °, in the finish forming step, when the second finishing upper tool 8 is lowered, The bottom outer edge portion 1b buckles between the second finishing upper tool 8 and the first finishing lower tool 10. Therefore, the angle A1 is preferably set to 60 ° or less.
- the third finishing upper tool 9 is lowered.
- the material 1 can be finished into a predetermined shape by pushing the cylindrical end 1d that is the upper end of the material vertical wall 1c with the third finishing upper tool 9.
- the present invention is not limited to this case, and the second finishing upper tool 8 and the third finishing upper tool are used. 9 may be simultaneously lowered.
- the cup-shaped member formed from can be removed.
- the cup-shaped member formed by the finish forming step is formed such that the bottom outer edge portion 1b of the bottom portion is thicker than the bottom center portion 1a.
- the final product shape of the material 1 corresponds to the gap between the first upper tool 2, the second upper tool 3, the third upper tool 4, and the first lower tool 5 corresponding to the volume of the material 1. ). That is, the final product shape of the material is determined by the volume of the space closed by the first upper tool 2, the second upper tool 3, the third upper tool 4, and the first lower tool 5.
- the controller In the rough forming process, if the press load exceeds the load limit of the press forming device, the controller interrupts the forming when the press load reaches the predetermined limit load value, and the subsequent finish forming process. You may migrate.
- FIG. 5A is a schematic cross-sectional view of a mold (corresponding to a third mold) used for this thickening process. Note that the description of the same configuration as in the first embodiment is omitted as appropriate.
- the mold used for the thickening process includes a fourth upper tool 12, a fifth upper tool 13, a sixth upper tool 14, and a second lower tool 15.
- the tools 12 to 15 have a central axis coaxial with each other and are arranged symmetrically with respect to the central axis L3.
- the second lower tool 15 has a knockout member 16 that is axisymmetric with respect to the central axis l3.
- the fourth upper tool 12 is formed in a cylindrical shape and can be formed in the same shape as the first upper tool 2.
- the fifth upper tool 13 is formed in a cylindrical shape, and is formed by an upper tool inclined portion 13a that is inclined so as to approach the central axis L3 as the tip end surface is directed downward.
- the angle A2 is smaller than the angle A1 of the second upper tool 3 (see FIG. 1).
- angle A2 20 degrees or more and 60 degrees or less are preferable. The reason is as described above, and the description thereof is omitted.
- the sixth upper tool 14 is formed in a cylindrical shape and is disposed along the outer periphery of the fifth upper tool 13.
- the second lower tool 15 has a lower tool hole 15a that allows the fourth upper tool 12, the fifth upper tool 13, and the sixth upper tool 14 to enter.
- the lower tool hole 15a is connected to the hole vertical wall 15b extending along the outer peripheral surface of the sixth upper tool 14 entering the lower tool hole 15a, and the lower end of the hole vertical wall 15b. From the hole inclination part 15c which inclines so that it may approach the center axis
- a bottom hole 15e extending in the direction of the central axis L3 is formed around the central axis L3 of the hole bottom 15d.
- a knockout member 16 is disposed inside the bottom hole 15e.
- the distal end surface of the knockout member 16 is disposed at a position that is substantially flush with the hole bottom surface portion 15d.
- An angle (acute angle side) formed by the hole bottom surface portion 15d and the hole inclined portion 15c is substantially the same as the angle A2 formed by the upper tool inclined portion 13a and the horizontal plane described above.
- the “bottom surface bottom portion” according to claim 4 is formed by the hole bottom surface portion 15 d and the tip end surface of the knockout member 16.
- the knockout member 16 may be integrated with the second lower tool 15.
- the die is changed to the die shown in FIG. Specifically, the fifth upper tool 13 is lowered while the material 1 is sandwiched between the fourth upper tool 12 and the second lower tool 15. After that, as shown in FIG. 5B, the sixth upper tool 14 is lowered in the direction of the arrow, and the sixth upper tool 14 pushes the cylindrical end 1d that is the upper end of the material vertical wall 1c, thereby The material is caused to flow from the wall portion 1c to the upper tool inclined portion 13a and the hole inclined portion 15c, thereby further increasing the thickness of the bottom outer edge portion 1b.
- target thickening is performed by carrying out the thickening process in two steps. The amount can be satisfied.
- FIG. 6A is a schematic cross-sectional view of a mold used in a re-thickening process step of the (n-1) th time (where n is an integer of 2 or more).
- FIG. 6B is a schematic cross-sectional view of a mold used in the n-th re-thickening process step. That is, FIG. 6A and FIG. 6B are cross-sectional views of molds used in any two consecutive steps.
- the mold shown in FIG. 6A (corresponding to the (n + 1) th mold) has (3 ⁇ n ⁇ 2) upper tool 22, (3 ⁇ n ⁇ 1) upper tool 23, (3 ⁇ n)
- the upper tool 24 and the nth lower tool 25 are included.
- the tools 22 to 25 are coaxial with respect to each other, and are arranged symmetrically with respect to the central axis Ln-1.
- the (3 ⁇ n ⁇ 2) -th upper tool 22 is formed in a cylindrical shape and can be formed in the same shape as the first upper tool 2.
- the (3 ⁇ n ⁇ 1) -th upper tool 23 is formed in a cylindrical shape, and is formed by an upper tool inclined portion 23a that is inclined so as to approach the central axis Ln ⁇ 1 as the tip end surface is directed downward. Yes.
- the (3 ⁇ n) upper tool 24 is formed in a cylindrical shape, and is disposed along the outer periphery of the (3 ⁇ n ⁇ 1) upper tool 23.
- the nth lower tool 25 is a lower that allows the (3 ⁇ n ⁇ 2) upper tool 22, the (3 ⁇ n ⁇ 1) upper tool 23, and the (3 ⁇ n) upper tool 24 to enter.
- a tool hole 25a is provided.
- the lower tool hole 25a has a hole vertical wall 25b extending along the outer peripheral surface of the (3 ⁇ n) upper tool 24 that enters the lower tool hole 25a, and a lower end of the hole vertical wall 25b.
- a bottom hole 25e extending in the direction of the central axis Ln-1 is formed around the central axis Ln-1 of the hole bottom 25d.
- a knockout member 26 is disposed inside the bottom hole 25e. The distal end surface of the knockout member 26 is disposed at a position that is substantially flush with the hole bottom surface portion 25d.
- the knockout member 26 may be integrally formed with the nth lower tool 25.
- the mold shown in FIG. 6B (corresponding to the n + 2 mold) includes the (3 ⁇ (n + 1) -2) upper tool 32, the (3 ⁇ (n + 1) -1) upper tool 33, the ( 3 ⁇ (n + 1)) upper tool 34 and (n + 1) th lower tool 35 are included.
- the tools 32 to 35 are coaxial with respect to each other, and are arranged symmetrically with respect to the central axis Ln.
- the (3 ⁇ (n + 1) -2) upper tool 32 is formed in a cylindrical shape, and can be formed in the same shape as the first upper tool 2.
- the (3 ⁇ (n + 1) ⁇ 1) upper tool 33 is formed in a cylindrical shape, and is formed by an upper tool inclined portion 33a that is inclined so as to approach the central axis Ln as the tip end surface is directed downward. Yes.
- the (3 ⁇ (n + 1)) upper tool 34 is formed in a cylindrical shape, and is disposed along the outer periphery of the (3 ⁇ (n + 1) ⁇ 1) upper tool 33.
- the (n + 1) th lower tool 35 includes a (3 ⁇ (n + 1) ⁇ 2) upper tool 32, a (3 ⁇ (n + 1) ⁇ 1) upper tool 33 and a (3 ⁇ (n + 1)) upper tool 34.
- the lower tool hole portion 35a that allows the entry of.
- the lower tool hole portion 35a includes a hole vertical wall portion 35b extending along the outer peripheral surface of the (3 ⁇ (n + 1)) upper tool 34 entering the lower tool hole portion 35a, and a lower end of the hole vertical wall portion 35b.
- the hole inclined portion 35c is inclined to approach the central axis Ln as it goes downward, and is connected to the lower end of the hole inclined portion 35c, and extends in a direction perpendicular to the central axis Ln.
- the hole bottom surface portion 35d is formed.
- a bottom hole 35e extending in the direction of the central axis Ln is formed around the central axis Ln of the hole bottom 35d.
- a knockout member 36 is disposed inside the bottom hole 35e. The distal end surface of the knockout member 36 is disposed at a position that is substantially flush with the hole bottom surface portion 35d.
- the knockout member 36 may be formed integrally with the (n + 1) th lower tool 35.
- the angle of the hole inclined portion 25c (upper tool inclined portion 23a) with respect to the horizontal plane is An-1
- the angle of the hole inclined portion 35c upper tool inclined portion 33a
- the angle is An
- the angle An is smaller than the angle An-1.
- the angle decreases stepwise, so even with a press molding machine with a small press load, the thickening process is performed in multiple steps to satisfy the target thickening amount. Can be made.
- the number of times of the thickening process performed in the re-thickening process step may be plural, and can be set to an appropriate value from the viewpoint of the size of the mold, the load limit, the target thickening amount, and the like.
- the angle An and the angle An-1 are preferably 20 ° or more and 60 ° or less. The reason is as described above, and the description thereof is omitted.
- 2nd Embodiment and 3rd Embodiment demonstrated the case where the thickening process or the re-thickening process was performed using a metal mold
- the thickening process is performed between the second process and the third process using the same mold used in the second process.
- die shown in FIG. 1 of 1st Embodiment is used is demonstrated, it can implement similarly also in 2nd Embodiment and 3rd Embodiment.
- the second upper tool 3 is slightly raised.
- the gap between the upper tool inclined portion 3a of the second upper tool 3 and the hole inclined portion 5c of the first lower tool 5 becomes rough forming step (or the previous thickening process step or the previous re-increase). It is set larger than the interval T in the meat processing step).
- the third upper tool 4 is raised and then lowered. The material flows between the upper tool inclined portion 3a and the hole inclined portion 5c from the raw material vertical wall portion 1c by pushing the cylindrical end portion 1d which is the upper end portion of the raw material vertical wall portion 1c with the third upper tool 4.
- the thickness of the bottom outer edge portion 1b can be increased.
- the second upper tool The thickening process step by the third and third upper tools 4 may be repeated.
- the present invention is not limited to this case, and the second upper tool 3 and the third upper tool 4 and the first lower tool 4 It is only necessary that the tool 5 can move relatively.
- the material 1 as a member can be removed.
- the removed material 1 is placed in a mold used in the finish molding process (or the thickening process in the second embodiment or the rethickening process in the third embodiment).
- the material 1 is placed on top of the first lower tool 5. After that, as shown in FIG. 7, the tip surface of the first upper tool 2 is brought into contact with the bottom center portion 1 a of the material 1 and the knockout member 6 of the second lower tool 5 is raised, The bottom center portion 1 a is clamped between the first upper tool 2 and the knockout member 6. Accordingly, the material 1 is positioned between the first upper tool 2 and the knockout member 6.
- the first upper tool 2, the second upper tool 3, and the knockout member 6 are simultaneously lowered while the material 1 is sandwiched between the first upper tool 2 and the knockout member 6. Therefore, the first upper tool 2 and the second upper tool 3 are bent according to the shapes of the first upper tool 2 and the second upper tool 3 while pushing the material 1 into the lower tool hole 5a. Therefore, as shown in FIG. 3D, the material 1 is press-molded into a shape including a bottom center portion 1a, a bottom outer edge portion 1b, and a material vertical wall portion 1c. The timing for completing this step can be determined from the moving position of the tool, the press load, and the like. Since the specific method was mentioned above, the description is abbreviate
- first upper tool 2 and the second upper tool 3 are lowered has been described.
- present invention is not limited to this case, and the first upper tool 2 and the second upper tool 3 and the first lower tool 3 What is necessary is just to be able to relatively move in the direction in which the tool 5 approaches.
- the rough forming process can be performed as in the first embodiment.
- the first upper tool 2 and the second upper tool 3 may be lowered simultaneously without raising the knockout member 6. That is, the pressing step and the bending step described in the first embodiment may be performed simultaneously.
- a method for the controller of the press molding apparatus to detect the press load a method using a load sensor provided in the press molding apparatus is generally used.
- the present invention is not limited to this case.
- the controller may finish molding before the load limit is exceeded by counting this time or measuring the amount of displacement of the tool.
- the controller does not necessarily need to directly compare the press load with the load limit of the press molding device as a condition for determining the completion of molding, and any method can be used as long as the molding can be completed before the load limit of the press molding device is exceeded. May be used.
- the material of the material various known materials that can be plastically processed, such as metals such as steel, aluminum, copper, or alloys thereof, can be adopted.
- the present invention can be used when a cup-shaped member that partially increases the bottom thickness is press-molded.
Abstract
Description
平板状の素材から底部の肉厚(底部厚さ)を部分的に変化させたカップ状部材の成形方法として、少工程かつ簡略な方法は次の通りである。まず、下工具40の上部に平板状の素材1を設置する。次に、図8Bに示すように、第一の上工具37、第二の上工具38及び第三の上工具39を下降させることで、下工具40の孔部40a内にカップ状部材を成形する。このとき、第三の上工具39で縦壁上端部を押し込むことにより、底部の肉厚を変化させる部分に材料を流動させることができる。このように、第二の上工具38と、下工具40の孔部40aとの間に形成される隙間に材料を充満させて所定の底部の肉厚を部分的に変化させる。しかしながら、この場合、図8Bに示すように、縦壁下端部と底部との接続部Pが略直角形状であるために、この部分を材料が通過するときの抵抗が大きくなってしまう。すなわち、縦壁上縁部を第三の上工具39で押し込み、底部の肉厚を変化させる部分に材料を流動させるために必要な荷重が過大となり、プレス成形装置の荷重容量が制約となり実用上成形できない場合が生じる。
(第1実施形態)
本実施形態のプレス成形方法は、粗成形工程と、仕上げ成形工程とを含む。粗成形工程は、請求項1に記載された第一工程及び第二工程を有する。仕上げ成形工程は、請求項1に記載された第三工程を有する。
図1は、粗成形工程を有効に実施するための金型の概略断面図である。粗成形工程に用いる金型(第一の金型に相当する)は、第一の上工具2、第二の上工具3、第三の上工具4、第一の下工具5を含む。工具2~5は互いに中心軸が同軸上であって、中心軸L1に対して軸対称に配置されている。第一の下工具5は、中心軸L1に対して軸対称なノックアウト部材6を有する。
なお、ノックアウト部材6は、移動不能な固定形式であってもよい。また、後述する他の工具においても、第一の金型と同様の駆動機構が設けられている。
第二の仕上げ上工具8は、上述した第二の上工具3の上工具傾斜部3aが省略された形状である。
第一の仕上げ下工具10は、上述した第一の下工具5の孔部傾斜部5cが省略された形状である。
ここでは、第一の上工具2を下降させる場合について説明したが、この場合に限られず、第一の上工具2と第一の下工具5とが接近する方向に相対移動できればよい。例えば、変形例として、第一の上工具2を下降させずに、第一の下工具5を上昇させてもよい。また、第一の上工具2を下降させながら、第一の下工具5を上昇させてもよい。ただし、これらの変形例を実施する場合、素材1の底中央部1aが第一の上工具2と第一の下工具5とによって挟まれる前に、金型の他の部分で金型間に挟圧されないように、金型相互の位置を制御しておく必要がある。
ここで、所定の隙間Tは、後述する図3Dの第二工程において、底外縁部1bを増肉可能なサイズに設定しておく必要がある。つまり、所定の隙間Tは、増肉前の素材1の板厚よりも大きくしておく必要がある。
また、第二の上工具3は第一の上工具2に対して独立して昇降する。したがって、第二の上工具3の上工具傾斜部3aと第一の下工具5の孔部傾斜部5cとの間に形成される隙間を任意に変更することができる。隙間を変更することで素材1の底外縁部1bの肉厚を容易に増減させることができる。
その後、第一の上工具2、第二の上工具3及び第三の上工具4を上昇させて、第一の下工具5のノックアウト部材6を上昇させることで、下工具孔部5aから中間部材としての素材1を取り外すことができる。
ここでは、第一の仕上げ上工具7を下降させる場合について説明したが、この場合に限られず、第一の仕上げ上工具7と第一の仕上げ下工具10とが接近する方向に相対移動できればよい。例えば、変形例として、第一の仕上げ上工具7を下降させずに、第一の仕上げ下工具10を上昇させてもよい。また、第一の仕上げ上工具7を下降させながら、第一の仕上げ下工具10を上昇させてもよい。
このとき、粗成形工程における孔部底面部5dと孔部傾斜部5cとのなす角度A1が60°を超える場合は、仕上げ成形工程において、第二の仕上げ上工具8を下降させた場合に、第二の仕上げ上工具8と第一の仕上げ下工具10との間で底外縁部1bが座屈してしまう。そのため、角度A1は60°以下に設定するのが好ましい。
次に、第三の仕上げ上工具9を下降させる。第三の仕上げ上工具9で素材縦壁部1cの上端部である筒端部1dを押し込むことにより、素材1を所定の形状に仕上げることができる。
ここでは、第二の仕上げ上工具8と第三の仕上げ上工具9とを順番に下降させる場合について説明したが、この場合に限られず、第二の仕上げ上工具8と第三の仕上げ上工具9とを同時に下降させてもよい。
第1実施形態では、図3Dの増肉工程(第二工程)実施後、直ちに仕上げ成形工程(第三工程)に移行した。本実施形態は、第二工程と第三工程との間で増肉処理を1回行う。図5Aは、この増肉処理に用いられる金型(第三の金型に相当する)の概略断面図である。なお、第1実施形態と同様の構成は、適宜その説明を省略する。
増肉処理に用いる金型は、第四の上工具12、第五の上工具13、第六の上工具14、第二の下工具15を含む。工具12~15は互いに中心軸が同軸上であって、中心軸L3に対して軸対称に配置されている。第二の下工具15は、中心軸l3に対して軸対称なノックアウト部材16を有する。
第四の上工具12は、円柱状に形成されており、第一の上工具2と同一形状に形成することができる。第五の上工具13は、筒状に形成されており、先端面が下方に向かうにしたがって中心軸L3に接近するように傾斜した上工具傾斜部13aにより形成されている。
第1実施形態では、図3Dの増肉工程(第二工程)実施後、直ちに仕上げ成形工程(第三工程)に移行した。本実施形態では、第二工程と第三工程との間で増肉処理を複数回行う再増肉処理工程を実施する。図6Aは、n-1回目(ただし、nは2以上の整数である)の再増肉処理工程において用いられる金型の概略断面図である。図6Bは、n回目の再増肉処理工程において用いられる金型の概略断面図である。つまり、図6A及び図6Bは、連続する任意の二工程でそれぞれ用いられる金型の断面図である。
第2実施形態及び第3実施形態では、第二工程と第三工程との間で異なる金型を用いて増肉処理又は再増肉処理を行う場合について説明した。本実施形態では、第二工程と第三工程との間で、第二工程で用いた同じ金型により増肉処理工程を実施する。ここでは、第1実施形態の図1に示す金型を用いる場合について説明するが、第2実施形態及び第3実施形態でも同様に実施することができる。
次に、第三の上工具4を上昇させた後に、下降させる。第三の上工具4で素材縦壁部1cの上端部である筒端部1dを押し込むことにより、素材縦壁部1cから上工具傾斜部3aと孔部傾斜部5cとの間に材料を流動させ、底外縁部1bの肉厚を増加させることができる。また、必要に応じて、さらに第二の上工具3の上工具傾斜部3aと、第一の下工具5の孔部傾斜部5cとの間の隙間を大きくした上で、第二の上工具3及び第三の上工具4による増肉処理工程を繰り返し実施してもよい。
第1実施形態の粗成形工程では、まず第一の上工具2を下降させて、素材1の底中央部1aを第一の上工具2と第一の下工具5との間で挟圧し、次に第二の上工具3を下降させる場合について説明した。本実施形態では、第一の上工具2及び第二の上工具3を同時に下降させる場合について説明する。
この工程を完了するタイミングは、工具の移動位置、プレス荷重などから判別することができる。その具体的な方法は上述したので、その説明を省略する。
Claims (7)
- 平板状の素材をカップ状部材に成形する際に、前記カップ状部材の底部厚さを部分的に増加させる、カップ状部材のプレス成形方法において、
互いに中心軸が同軸上に配置される、円柱状の第一の上工具と、前記第一の上工具の外周に沿って配置され、先端面が下方に向かうに従って前記中心軸に接近するように傾斜した上工具傾斜部によって形成された筒状の第二の上工具と、前記第二の上工具の外周に沿って配置される筒状の第三の上工具と、前記第一の上工具、前記第二の上工具及び前記第三の上工具の進入を許容する孔部であって、この孔部が前記孔部内に進入する前記第三の上工具に沿って延びる孔部縦壁部と、前記孔部縦壁部の下端部に連設し、下方に向かうにしたがって前記中心軸に接近するように傾斜した孔部傾斜部と、前記孔部傾斜部の下端部に連設し、前記中心軸に直交する方向に延びる孔部底面部とから形成される第一の下工具と、を有する第一の金型を用いて、
前記第一の上工具及び前記第二の上工具を前記第一の下工具に接近させる方向に相対移動させることにより、前記素材を前記第一の下工具の前記孔部に押し込み、前記素材を折り曲げる第一工程と、
前記第三の上工具を前記第一の下工具に接近させる方向に相対移動させて、前記素材の上端部を押し込むことにより、前記素材の一部を前記上工具傾斜部と前記孔部傾斜部との間に形成された隙間に流動させ、この部分を増肉する第二工程と、を実施し、
前記第一の金型とは異なる第二の金型を用いて、前記第二工程で増肉された部分を、カップ状部材の中心軸に対して略直交する方向に延在する形状にプレス成形する第三工程、を実施することを特徴とするカップ状部材のプレス成形方法。 - 前記第一工程では、
前記第一の上工具を前記第一の下工具に接近させる方向に相対移動させることにより、前記素材を前記第一の下工具の前記孔部に折り曲げながら押し込み、前記第一の上工具及び前記孔部底面部で挟圧する挟圧工程と、
前記第二の上工具を前記第一の下工具に接近させる方向に相対移動させ、前記第二の上工具の形状に応じて前記素材をさらに折り曲げる折り曲げ工程と、を実施することを特徴とする請求項1に記載のカップ状部材のプレス成形方法。 - 前記孔部傾斜部と前記孔部底面部とのなす角度をAとしたとき、
20°≦角度A≦60°
であることを特徴とする請求項1又は2に記載のカップ状部材のプレス成形方法。 - 互いに中心軸が同軸上に配置される、円柱状の第四の上工具と、前記第四の上工具の外周に沿って配置され、先端面が下方に向かうに従って前記中心軸に接近するように傾斜した上工具傾斜部によって形成された筒状の第五の上工具と、前記第五の上工具の外周に沿って配置される筒状の第六の上工具と、前記第四の上工具、前記第五の上工具及び前記第六の上工具の進入を許容する孔部であって、この孔部が前記孔部内に進入する前記第六の上工具に沿って延びる孔部縦壁部と、前記孔部縦壁部の下端部に連設し、下方に向かうにしたがって前記中心軸に接近するように傾斜した孔部傾斜部と、前記孔部傾斜部の下端部に連設し、前記中心軸に直交する方向に延びる孔部底面部とから形成される第二の下工具と、を有し、前記第五の上工具における上工具傾斜部の傾斜する角度が前記第二の上工具における上工具傾斜部の傾斜する角度よりも小さい、第三の金型を用いて、
前記第四の上工具と前記第二の下工具とで前記素材を挟圧した状態で前記第五の上工具を前記第二の下工具に接近させる方向に相対移動させた後に、前記第六の上工具を前記第二の下工具に接近させる方向に相対移動させて、前記素材の上端部を押し込むことにより、前記素材の一部を前記上工具傾斜部と前記孔部傾斜部との間に形成された隙間に流動させ、この部分をさらに増肉する増肉工程を、前記第二工程と前記第三工程との間に実施することを特徴とする請求項1乃至3の何れか1項に記載のカップ状部材のプレス成形方法。 - 前記第二工程と前記第三工程との間で増肉処理を複数回実施する再増肉処理工程を有し、
前記再増肉処理工程において、n-1回目(ただし、nは2以上の整数である)の増肉処理は、互いに中心軸が同軸上に配置される、円柱状の第(3×n-2)の上工具と、前記第(3×n-2)の上工具の外周に沿って配置され、先端面が下方に向かうに従って前記中心軸に接近するように傾斜した上工具傾斜部によって形成された筒状の第(3×n-1)の上工具と、前記第(3×n-1)の上工具の外周に沿って配置される筒状の第(3×n)の上工具と、前記第(3×n-2)の上工具、前記第(3×n-1)の上工具及び前記第(3×n)の上工具の進入を許容する孔部であって、この孔部が前記孔部内に進入する前記第(3×n)の上工具に沿って延びる孔部縦壁部と、前記孔部縦壁部の下端部に連設し、下方に向かうにしたがって前記中心軸に接近するように傾斜した孔部傾斜部と、前記孔部傾斜部の下端部に連設し、前記中心軸に直交する方向に延びる孔部底面部とから形成される第nの下工具と、を有する第n+1の金型を用いて、前記第(3×n-2)の上工具と前記第nの下工具とで前記素材を挟圧した状態で前記第(3×n-1)の上工具を前記第nの下工具に接近させる方向に相対移動させた後に、前記第(3×n)の上工具を前記第nの下工具に接近させる方向に相対移動させて、前記素材の上端部を押し込むことにより、前記素材の一部を前記上工具傾斜部と前記孔部傾斜部との間に形成された隙間に流動させ、この部分をさらに増肉する処理であり、
n回目の増肉処理は、互いに中心軸が同軸上に配置される、円柱状の第(3×(n+1)-2)の上工具と、前記第(3×(n+1)-2)の上工具の外周に沿って配置され、先端面が下方に向かうに従って前記中心軸に接近するように傾斜した上工具傾斜部によって形成された筒状の第(3×(n+1)-1)の上工具と、前記第(3×(n+1)-1)の上工具の外周に沿って配置される筒状の第(3×(n+1))の上工具と、前記第(3×(n+1)-2)の上工具、前記第(3×(n+1)-1)の上工具及び前記第(3×(n+1))の上工具の進入を許容する孔部であって、この孔部が前記孔部内に進入する前記第(3×(n+1))の上工具に沿って延びる孔部縦壁部と、前記孔部縦壁部の下端部に連設し、下方に向かうにしたがって前記中心軸に接近するように傾斜した孔部傾斜部と、前記孔部傾斜部の下端部に連設し、前記中心軸に直交する方向に延びる孔部底面部とから形成される第(n+1)の下工具と、を有し、前記第(3×(n+1)-1)の上工具における上工具傾斜部の傾斜する角度が前記第(3×n-1)の上工具における上工具傾斜部の傾斜する角度よりも小さい第n+2の金型を用いて、前記第(3×(n+1)-2)の上工具と前記第(n+1)の下工具とで前記素材を挟圧した状態で前記第(3×(n+1)-1)の上工具を前記第(n+1)の下工具に接近させる方向に相対移動させた後に、前記第(3×(n+1))の上工具を前記第(n+1)の下工具に接近させる方向に相対移動させて、前記素材の上端部を押し込むことにより、前記素材の一部を前記上工具傾斜部と前記孔部傾斜部との間に形成された隙間に流動させ、この部分をさらに増肉する処理であることを特徴とする請求項1乃至3の何れか1項に記載のカップ状部材のプレス成形方法。 - 前記第一工程及び前記第二工程の少なくとも何れかの工程の完了を予め定められた、工具の位置で判断することを特徴とする請求項1乃至5の何れか1項に記載のカップ状部材のプレス成形方法。
- 前記第一工程及び前記第二工程の少なくとも何れかの各工程の完了を予め定められた、プレス成形装置の荷重値で判断することを特徴とする請求項1乃至5の何れか1項に記載のカップ状部材のプレス成形方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020157026653A KR101751160B1 (ko) | 2013-05-13 | 2014-05-09 | 컵 형상 부재의 프레스 성형 방법 |
CN201480025408.2A CN105188981B (zh) | 2013-05-13 | 2014-05-09 | 杯状部件的冲压成型方法 |
JP2014543672A JP5692478B1 (ja) | 2013-05-13 | 2014-05-09 | カップ状部材のプレス成形方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013-101071 | 2013-05-13 | ||
JP2013101071 | 2013-05-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014185357A1 true WO2014185357A1 (ja) | 2014-11-20 |
Family
ID=51898335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/062496 WO2014185357A1 (ja) | 2013-05-13 | 2014-05-09 | カップ状部材のプレス成形方法 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP5692478B1 (ja) |
KR (1) | KR101751160B1 (ja) |
CN (1) | CN105188981B (ja) |
WO (1) | WO2014185357A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016175281A1 (ja) * | 2015-04-28 | 2016-11-03 | 新日鐵住金株式会社 | プレス加工装置、プレス加工方法、およびプレス成形品 |
US20160375477A1 (en) * | 2013-12-26 | 2016-12-29 | Nippon Steel & Sumitomo Metal Corporation | Hat shaped cross-section component manufacturing method |
JP2019072727A (ja) * | 2017-10-13 | 2019-05-16 | Jfeスチール株式会社 | プレス成形装置及び方法 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6721544B2 (ja) * | 2017-06-28 | 2020-07-15 | 株式会社神戸製鋼所 | プレス成形品の製造方法 |
CN109647981B (zh) * | 2017-10-10 | 2022-02-08 | 湖北宏力液压科技有限公司 | 一种用于搬运车三角架的多层冲压模具 |
CN110293148B (zh) * | 2019-06-21 | 2020-09-29 | 上海正玺新材料科技有限公司 | 一种镁合金板材冲压锻造复合成型方法 |
CN114888181B (zh) * | 2022-07-13 | 2022-09-30 | 苏州春秋电子科技股份有限公司 | 一种翻边墩厚一体式模具 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001047175A (ja) * | 1999-08-10 | 2001-02-20 | Nachi Fujikoshi Corp | 増肉プレス加工法 |
JP2004098153A (ja) * | 2002-09-12 | 2004-04-02 | Aida Eng Ltd | プレス成形方法とプレス機械 |
JP2004322104A (ja) * | 2003-04-21 | 2004-11-18 | Aisin Seiki Co Ltd | 絞り成形金型および絞り成形方法 |
DE102007013174A1 (de) * | 2007-03-20 | 2008-09-25 | Bpw Bergische Achsen Kg | Verfahren zum Herstellen eines aus gegeneinander gesetzten Profilen bestehenden Achskörpers |
JP2010214381A (ja) * | 2009-03-13 | 2010-09-30 | Aisin Aw Co Ltd | 段付カップ状部品の成形装置及び成形方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4457150A (en) * | 1982-02-11 | 1984-07-03 | National Steel Corporation | Method of forming D&I cans from coated steel |
JPH0798237B2 (ja) * | 1989-09-06 | 1995-10-25 | 株式会社カネミツ | 円形鋼板からシールリング嵌合用溝を形成する方法 |
AU2011212400B2 (en) * | 2010-02-04 | 2016-08-04 | Crown Packaging Technology, Inc. | Can manufacture |
CN202028683U (zh) * | 2011-01-10 | 2011-11-09 | 协易机械工业股份有限公司 | 冲压成形装置 |
CN102581104A (zh) * | 2012-03-07 | 2012-07-18 | 黄石华力锻压机床有限公司 | 圆盘周边增厚旋压机 |
CN202591385U (zh) * | 2012-04-04 | 2012-12-12 | 无锡欧易博阀业科技有限公司 | 喇叭形杯状工件拉伸模具 |
-
2014
- 2014-05-09 CN CN201480025408.2A patent/CN105188981B/zh active Active
- 2014-05-09 WO PCT/JP2014/062496 patent/WO2014185357A1/ja active Application Filing
- 2014-05-09 JP JP2014543672A patent/JP5692478B1/ja active Active
- 2014-05-09 KR KR1020157026653A patent/KR101751160B1/ko active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001047175A (ja) * | 1999-08-10 | 2001-02-20 | Nachi Fujikoshi Corp | 増肉プレス加工法 |
JP2004098153A (ja) * | 2002-09-12 | 2004-04-02 | Aida Eng Ltd | プレス成形方法とプレス機械 |
JP2004322104A (ja) * | 2003-04-21 | 2004-11-18 | Aisin Seiki Co Ltd | 絞り成形金型および絞り成形方法 |
DE102007013174A1 (de) * | 2007-03-20 | 2008-09-25 | Bpw Bergische Achsen Kg | Verfahren zum Herstellen eines aus gegeneinander gesetzten Profilen bestehenden Achskörpers |
JP2010214381A (ja) * | 2009-03-13 | 2010-09-30 | Aisin Aw Co Ltd | 段付カップ状部品の成形装置及び成形方法 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160375477A1 (en) * | 2013-12-26 | 2016-12-29 | Nippon Steel & Sumitomo Metal Corporation | Hat shaped cross-section component manufacturing method |
US10022763B2 (en) * | 2013-12-26 | 2018-07-17 | Nippon Steel & Sumitomo Metal Corporation | Hat shaped cross-section component manufacturing method |
WO2016175281A1 (ja) * | 2015-04-28 | 2016-11-03 | 新日鐵住金株式会社 | プレス加工装置、プレス加工方法、およびプレス成形品 |
KR20170131607A (ko) * | 2015-04-28 | 2017-11-29 | 신닛테츠스미킨 카부시키카이샤 | 프레스 가공 장치, 프레스 가공 방법 및 프레스 성형품 |
JPWO2016175281A1 (ja) * | 2015-04-28 | 2017-12-28 | 新日鐵住金株式会社 | プレス加工装置、プレス加工方法、およびプレス成形品 |
JP2019141911A (ja) * | 2015-04-28 | 2019-08-29 | 日本製鉄株式会社 | プレス加工装置、およびプレス加工方法 |
KR102036062B1 (ko) * | 2015-04-28 | 2019-10-24 | 닛폰세이테츠 가부시키가이샤 | 프레스 가공 장치 및 프레스 가공 방법 |
US10857583B2 (en) | 2015-04-28 | 2020-12-08 | Nippon Steel Corporation | Press-working apparatus, press-working method, and press-molded product |
JP2019072727A (ja) * | 2017-10-13 | 2019-05-16 | Jfeスチール株式会社 | プレス成形装置及び方法 |
Also Published As
Publication number | Publication date |
---|---|
CN105188981A (zh) | 2015-12-23 |
JP5692478B1 (ja) | 2015-04-01 |
KR20150123297A (ko) | 2015-11-03 |
CN105188981B (zh) | 2016-11-30 |
KR101751160B1 (ko) | 2017-06-26 |
JPWO2014185357A1 (ja) | 2017-02-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5692478B1 (ja) | カップ状部材のプレス成形方法 | |
JP6727255B2 (ja) | 金属ブランクを成形するための装置、設備、及び方法、及び、それにより製造されたワーク | |
CN104736269B (zh) | 冲压加工方法及带底容器 | |
CN104159682B (zh) | 冲压成型方法 | |
US8387435B2 (en) | Elbow material production device and production method thereof | |
CN105682823B (zh) | 带底圆筒容器的成形方法 | |
JP6229178B2 (ja) | リング製品の加工方法 | |
CN103143580A (zh) | 一种圆锥套的制造工艺 | |
JP5626501B1 (ja) | ボス付き円筒容器の成形方法 | |
KR101433675B1 (ko) | 언더 드라이브 브레이크 피스톤 제조용 냉간 단조금형 | |
JP5949463B2 (ja) | カップ状部材のプレス成形法 | |
RU2660472C1 (ru) | Способ выдавливания деталей типа стакан и устройство для его осуществления | |
WO2018090989A1 (zh) | 压力成型装置及压力成型方法 | |
RU2780729C1 (ru) | Устройство для углового прессования | |
KR101842812B1 (ko) | 금속 판재 대상체의 성형 방법 | |
KR101623480B1 (ko) | 두께가 상이한 프레스물을 성형하기 위한 프레스 금형장치 및 이에 의해 성형된 프레스 성형물 | |
JP2021053670A (ja) | 成形装置、可動成形具および成形方法 | |
JP6187238B2 (ja) | プレス成形方法及びプレス成形装置 | |
JP2015147238A (ja) | エルボ素材の製造方法及び同方法により製造されたエルボ素材 | |
RU2443498C2 (ru) | Способ концентричного углового прессования деталей типа стаканов или чаш | |
JP7215200B2 (ja) | 環状部材の成形方法及び成形装置 | |
RU2619541C2 (ru) | Штамповка с боковым выдавливанием | |
UA124694U (uk) | Спосіб зміцнення отворів у деталях локальною обробкою тиском | |
SE525752C2 (sv) | Metod för tillverkning en metallhylsa, samt en kopp avsedd att utgöra ett ämne för denna metallhylsa |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201480025408.2 Country of ref document: CN |
|
ENP | Entry into the national phase |
Ref document number: 2014543672 Country of ref document: JP Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14797405 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 20157026653 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: IDP00201507285 Country of ref document: ID |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 14797405 Country of ref document: EP Kind code of ref document: A1 |