WO2004028720A1 - ビード付き円筒形リングの製造方法及びその方法に用いる金型 - Google Patents
ビード付き円筒形リングの製造方法及びその方法に用いる金型 Download PDFInfo
- Publication number
- WO2004028720A1 WO2004028720A1 PCT/JP2003/012372 JP0312372W WO2004028720A1 WO 2004028720 A1 WO2004028720 A1 WO 2004028720A1 JP 0312372 W JP0312372 W JP 0312372W WO 2004028720 A1 WO2004028720 A1 WO 2004028720A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ring
- molding
- cylindrical
- molding surface
- mold
- Prior art date
Links
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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/14—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces applying magnetic forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/16—Making other particular articles rings, e.g. barrel hoops
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49803—Magnetically shaping
Definitions
- Japanese Patent Application Laid-Open No. Hei 6-31122226 discloses that this electromagnetic molding is applied to the processing of a cylindrical member (hollow material).
- an electromagnetic molding coil is inserted inside a hollow material made of aluminum extruded material, and at the outer peripheral side of a hollow material E corresponding to the existence range of the electromagnetic molding coil, An expanded tube forming mold is placed, and in this state, an instantaneous large current is applied to the electromagnetic forming coil to press the outer peripheral surface of the hollow material against the expanded tube forming mold, and the outer peripheral surface is formed into a mold. Form on the outer peripheral surface of the corresponding shape. In this way, a hollow material whose cross section changes in the longitudinal direction is manufactured.
- the method for manufacturing a cylindrical ring with beads according to the present invention is characterized in that a side facing the cylindrical material ring is a molding surface on an outer peripheral side or an inner peripheral side of the closed metal cylindrical material ring.
- a molding die in which a groove for bead molding is formed along the direction is arranged, and an electromagnetic molding coil is arranged on the side opposite to the mold with respect to the cylindrical raw material ring.
- a large instantaneous current is applied to the electromagnetic forming coil, the cylindrical material ring is deformed and pressed against the molding surface of the molding die, and the magnet is formed into a shape corresponding to the molding surface. It is an improved version.
- the term “bead” means a ridge that projects in the outer diameter direction of the cylindrical ring.
- the present invention includes a beaded cylindrical ring referred to in the present invention, for example, a reinforcement ring of a ranflat tire.
- an electromagnetic molding die in which an inner surface is a ring-shaped molding surface and a groove portion for bead molding is formed along a circumferential direction of the molding surface, or a ring-shaped molding surface on the outer surface side A bead forming protrusion is formed along the circumferential direction of the forming surface, and an electromagnetic forming die having grooves formed on both sides of the protrusion is used.
- the divided molds are arranged with a gap in the axial direction.
- the mold has a slit formed over the entire circumference in the groove, and the problem of the depression is completely solved.
- the axial direction means the axial direction of the molding surface of the mold (or cylindrical material ring).
- the beaded cylindrical ring is subjected to a straightening process such as a roll straightening process, and a bead is formed.
- a straightening process such as a roll straightening process
- Improve the dimensional accuracy of each part That is, an inner mouth and an outer roll finished to the accuracy required for the outer shape are prepared, and the cylindrical ring with beads after being electromagnetically formed into a shape corresponding to the molding surface is attached to the inner mouth.
- the straightening is performed by rotating the roll while sandwiching it between the outer gap and the outer gap.
- the dimensional accuracy can be improved by repeating the process of applying a momentary large current to the electromagnetic forming coil a plurality of times.
- electromagnetic shaping diameter expansion
- electromagnetic shaping diameter reduction
- the second or subsequent electromagnetic forming has the meaning of correction.
- a circular cutting blade is arranged between each molding surface corresponding to the cylindrical ring with a bead of the mold, and the cylindrical material ring is pressed when the cylindrical material ring is pressed against the molding surface of the mold. Can be cut.
- electromagnetic forming diameter expansion, diameter reduction
- the mold must have a plurality of sets of molding surfaces corresponding to the cylindrical ring with beads in the axial direction, and the electromagnetic molding coil body must also have a corresponding axial length.
- each bead into a cylindrical ring with beads it is possible to separate each bead into a cylindrical ring with beads at the same time as the electromagnetic forming, thereby improving productivity.
- a ring having a large number of holes formed in a peripheral wall thereof is used as the cylindrical material ring. It is desirable that these holes are regularly arranged on the peripheral wall. By forming a large number of holes in the peripheral wall, it is possible to reduce the weight of the cylindrical ring with beads.
- a cylindrical material ring in which holes are regularly formed on almost the entire surface of the peripheral wall is highly effective for light weight. As this kind of cylindrical material ring, for example, punched metal is ring-shaped and its ends are joined, or it is spirally wound to melt the seam. And those in contact.
- holes are formed in the cylindrical material ring for positioning during electromagnetic molding.
- a large number of protrusions are formed along the circumferential direction at the point of the smallest inner diameter of the molding surface of the mold, and the cylindrical material ring is formed with the protrusions.
- a number of holes are formed in the corresponding places along the circumferential direction, and when the mold is arranged on the outer peripheral side of the cylindrical material ring, the projections are fitted into the holes.
- the protrusion is formed at an axial center position of the molding surface of the mold, between adjacent grooves on the molding surface, and the hole is formed at an axial center of the cylindrical material ring. Preferably, it is formed at a location.
- a large number of protrusions are formed along the circumferential direction at the point where the outer diameter is largest on the molding surface of the mold, and the protrusions are formed on the cylindrical ring.
- a number of holes are formed along the circumferential direction at locations corresponding to the above, and when the mold is arranged on the inner peripheral side of the cylindrical ring, the projections are fitted into the holes.
- the protrusion is formed at an axial center position of the molding surface of the mold and formed on a ridge of the molding surface, and that the hole is formed at an axial center position of the cylindrical material ring.
- the cylindrical material ring is accurately positioned in the mold, and the material of the cylindrical material ring does not move axially at the position of the positioning hole even during electromagnetic molding.
- the outer diameter at the axial center position of the molding surface of the mold is set to be the largest, and the inner peripheral surface of the cylindrical material ring and the molding surface of the mold at that location. May be set so as to be in contact with each other. In any case, it is desirable to match the axial center position of the molding surface of the mold with the axial center position of the cylindrical material ring.
- the holes formed in the cylindrical material ring can be used for connection with other members in the cylindrical ring with beads after molding.
- resin is attached to both ends in the axial direction of the capturing ring. At this time, the resin enters the hole, and the connection between the o-ring and the resin is more reliably performed.
- a beaded cylindrical ring formed by electromagnetic forming can be cut and separated in the circumferential direction as necessary.
- the cutting direction is desirably, for example, parallel or oblique to the axial direction of the cylindrical ring with beads.
- the cylindrical ring with the bead is Since the two can be fitted through the eye, it has the advantage of occupying less space for storage and transportation.
- this beaded cylindrical ring can be joined to the closed ring again, if necessary, at the point of separation. When joining is performed by welding, butt welding is preferred, and laser welding with a small excess is particularly preferable.
- FIG. 1 is a side view (a) and a front view (b) of a cylindrical material ring before electromagnetic forming.
- FIG. 2 is a cross-sectional view (a), a side view '(b), and a front view (c) of a cylindrical ring with beads after electromagnetic forming.
- FIG. 3 is a cross-sectional view (a) before forming and (b) a cross-sectional view illustrating a method of manufacturing a cylindrical ring with beads by electromagnetic forming.
- FIG. 4 is a side view (a), a cross-sectional view (b), and a partially enlarged view (c) showing an example of a mold structure of an electromagnetic molding mold.
- FIG. 5 is a cross-sectional view (a) before forming and (b) a cross-sectional view illustrating a method of manufacturing a cylindrical ring with beads by electromagnetic forming.
- FIG. 6 is a side sectional view (a) and a front sectional view (b) showing a method of correcting a cylindrical ring with a bead.
- FIG. 7 shows a method of straightening a cylindrical ring with a bead, and is a sectional view (a) before straightening and a sectional view (b) after straightening.
- FIG. 8 shows a multi-stage molding method for a cylindrical ring with beads, a cross-sectional view before molding (a), a cross-sectional view after one-stage molding (b), and a cross-sectional diagram after two-stage molding (c). It is.
- FIG. 9 is a cross-sectional view showing a method of forming a plurality of cylindrical rings with beads.
- FIG. 10 is a side sectional view (a) and a front sectional view (b) showing a method of separating and correcting a plurality of connected cylindrical rings with beads.
- FIG. 11 is a front view of another cylindrical material ring used in the present invention. '
- FIG. 13 is a cross-sectional view (a) before molding and a cross-sectional view (b) after molding, for explaining a method of manufacturing a cylindrical ring with a bead using the cylindrical material ring.
- FIG. 15 illustrates a method for manufacturing a cylindrical ring with beads using the cylindrical material ring, and is a sectional view (a) before molding and a sectional view (b) after molding.
- FIG. 16 is a front view of still another cylindrical material ring used in the present invention.
- Fig. 19 is a perspective view of a cylindrical ring with beads that has been separated and joined again by welding.
- FIG. 20 After separation, with bead joined by rivet again It is a side view (a) of a cylindrical ring and its AA sectional view (b).
- FIG. 24 is a cross-sectional view (a) before forming and a cross-sectional view (b) after forming, illustrating a method of manufacturing a cylindrical ring with beads by electromagnetic forming.
- FIG. 25 is a diagram illustrating a method for manufacturing a cylindrical material ring. BEST MODE FOR CARRYING OUT THE INVENTION
- the cylindrical ring 17 with a bead is a substantially rotating body, and is substantially plane-symmetric with a plane perpendicular to the axial direction at the axial center position as a plane of symmetry.
- the material of the cylindrical material ring 1 is drawn into the grooves 3 to 5 with electromagnetic forming, and the As a result, the axial width of the beaded cylindrical ring 17 is smaller than the axial width of the cylindrical material ring 1.
- 37 is a bolt for fixing the split molds 25 to 28, and 38 is a nut.
- the top of the bead of the beaded cylindrical ring is formed in this gap 32 to 34 (the bottom of the groove 22 to 24).
- the width of the gaps 32 to 34 air can be evacuated without any trouble.
- the divided molds adjacent to each other with the gaps 32 to 34 interposed therebetween Can be deformed to a shape almost along the extrapolated curve (see phantom line E in Fig. 4 (c)).
- the obtained cylindrical ring with beads is substantially a rotating body, and is substantially plane-symmetric with respect to a plane perpendicular to the axial direction at the axial center position as a plane of symmetry.
- each of the ridges 4 1 and 4 2 formed on the molding surface of the mold 4 4 faces outward in the radial direction, and each of the grooves 43 a to 43 c has an opening facing outward in the radial direction.
- 1, 42 and the groove portions 43a to 43c are connected to each other in a waveform, and the ends of the groove portions 43a and 43c are connected to the end parallel portions 46 and 47 of the molding surface, respectively.
- the molding surface of the mold 44 substantially forms a rotating surface, and is substantially plane-symmetric with a plane perpendicular to the axial direction at the axial center position as a plane of symmetry. Further, the axial center position of the molding surface of the mold 44 and the axial center position of the cylindrical material ring 1 are matched.
- a hole or a slit 48 for venting air is formed at the bottom of each of the grooves 43a to 43c, as in FIG.
- Beaded cylinder consisting of two circumferential beads 5 3 and 5 4 (grooves 55 a to 55 c are formed on both sides and are connected to each bead 5 3 and 5 4 ′)
- Shaped ring 5 6 The beaded cylindrical ring 56 is substantially a rotating body, and is substantially plane-symmetric with respect to a plane perpendicular to the axial direction at the axial center position as a plane of symmetry. With the electromagnetic forming, the material of the cylindrical material ring 1 is drawn into the grooves 43 a to 43 c, and as a result, the axial width of the cylindrical ring 56 with the bead is the same as that of the cylindrical material ring 1. It is smaller than the axial width.
- Figure 6 shows the cylindrical ring with beads after electromagnetic forming (expansion and reduction).
- Fig. 3 shows a method of correcting a knurl for improving dimensional accuracy.
- the cylindrical material ring 1 When a large instantaneous current is applied to the electromagnetic molding coil body 75 in the state of FIG. 8A, the cylindrical material ring 1 instantaneously expands in diameter and is pressed against the molding surface of the mold 74. However, at this time, the electric energy applied to the electromagnetic forming coil body 75, that is, the magnetic repulsive force generated in the cylindrical material ring 1 is, as shown in FIG. It is set so that it is not large enough to form a shape sufficiently along the molding surface (particularly, the grooves 7 1 to 7 3). That is, the cylindrical material ring 1 is drawn into the grooves 71 to 73 and protrudes from the groove.
- bead forming grooves 84 to 86 are formed along the circumferential direction, and two sets of the grooves 84 to 86 are formed in the axial direction.
- a circular cutting blade 87 is formed inward at the intermediate position.
- a large number of holes or slits 88 for venting air are formed along the circumferential direction.
- the mold 82 is composed of a plurality of divided pieces divided in the circumferential direction.
- cylindrical ring with bead Are formed to form a cylindrical ring with beads.
- FIG. 11 shows a cylindrical material ring 101 in which a large number of holes 102 are formed on the entire peripheral wall.
- This cylindrical material ring 101 is formed by winding and bending a rectangular metal plate (for example, an aluminum alloy plate) in which holes 102 are regularly formed in a grid pattern, that is, punching metal into a cylindrical shape. It can be obtained by joining the parts by welding or the like.
- the cylindrical material ring 101 is electromagnetically formed using, for example, a mold 6 and an electromagnetic forming coil 7 shown in FIG. 3, a lighter cylindrical ring with beads can be formed. Since a large number of holes 1 ⁇ 2 are formed on the entire surface of the peripheral wall of the cylindrical material ring 101, air vent holes and slits formed in the mold 6, etc., and the mold 2 1 ( There is no need for the air vent clearance formed in Figure 4).
- FIG. 12 shows a cylindrical material ring 103 in which a large number of holes 102 are formed symmetrically along the circumferential direction on the peripheral walls at both ends in the axial direction.
- These holes 102 constitute two rows of holes (the outer row is 102 a and the inner row is 102 b) that make a round on the peripheral wall at each end in the axial direction.
- the holes 102 are greased at equal intervals.
- the shaped material ring 103 is made of a rectangular metal plate (for example, an aluminum alloy plate) in which a large number of holes 102 are formed in two rows near the long side edge and parallel to the long side. It can be obtained by winding and joining the ends by welding or the like.
- FIG. 13 shows the electromagnetic forming method using this cylindrical material ring 103.
- a groove 104 for bead forming is formed on the outer peripheral side of the cylindrical material ring 103 along the circumferential direction of the forming surface.
- the molded mold 106 (comprising a plurality of divided pieces divided in the circumferential direction in the same manner as the mold 6) is arranged, and the coil member for electromagnetic forming is formed on the inner peripheral side of the cylindrical material ring 103. 107 is arranged.
- the molding surface of the mold 106 substantially forms a rotating surface, and is substantially plane-symmetric with a plane perpendicular to the axial direction at the axial center position as a plane of symmetry.
- the axial center position of the molding surface of the mold 106 and the axial center position of the cylindrical material ring 103 are made to coincide with each other.
- the cylindrical ring 1 13 with a bead is substantially a rotating body (it cannot be said to be a rotating body in a strict sense due to the formation of a hole 102, etc.). It can be regarded as a rotating body if viewed), and the plane is substantially symmetric with respect to the plane perpendicular to the axial direction at the axial center position.
- the material of the cylindrical material ring 103 becomes the groove part 104, 1 As a result, the material at the end of the cylindrical material ring 103 located outside the grooves 104 and 105 in the axial direction flows into the grooves 104 and 105.
- the holes 102 of the cylindrical material ring 103 were located outside the grooves 104 and 105 on the molding surface of the mold 106 in both hole rows (hole rows 102a and 102b). As the material at the end of the material ring 103 flows into the grooves 104, 105, the row of holes 102b is positioned in the grooves 104, 105 '.
- the axial row 'inner hole row 102b is located on the beads 1 1 1 and 1 12 and the axial outer hole row 102a is the parallel section 108 and 109.
- the cylindrical shape without holes is formed.
- the contact area between the molding surface of the mold 106 and the cylindrical ring 103 is reduced due to the formation of the hole 102 as compared with the ring 1 etc., and the frictional resistance between the two is reduced.
- the cylindrical ring 103 Flow into the grooves 104 and 105 becomes smooth, and electromagnetic molding can be performed with high accuracy. This effect can be obtained similarly in the case of forming the cylindrical ring 101.
- FIG. 14 shows a cylindrical material ring 1 15, which is formed at a central position in the axial direction with a large number of holes 102 in one row along the circumferential direction at equal intervals.
- This cylindrical ring material 1 15 is obtained by winding a rectangular metal plate (for example, an aluminum alloy plate) having a large number of holes 102 in a row into a cylindrical shape, and joining the ends by welding or the like. be able to.
- a rectangular metal plate for example, an aluminum alloy plate
- Fig. 15 shows an electromagnetic forming method using this cylindrical material ring 115.
- Fig. 15 (a) it is placed on the outer peripheral side of the cylindrical material ring 115.
- the mold 1 16 (composed of a plurality of divided pieces circumferentially divided in the same manner as the mold 6) has a molding surface on the inner surface side and is formed along the circumference of the molding surface. Grooves 1 17 and 1 18 are formed, and an intermediate portion 1 19 of the grooves 1 17 and 1 18 protrudes toward the inner diameter side, and a projection 1 2 1 is formed at the vertex where the inner diameter is the smallest. They are formed at equal intervals along the circumferential direction.
- the molding surface of the mold 1 16 is substantially a rotating surface (there is a projection surface 121 and the like, so it is not a rotating surface in a strict sense, but the function of the molding surface is substantially a rotating surface.
- the plane is substantially symmetric with respect to the plane perpendicular to the axial direction at the axial center position as a plane of symmetry.
- the distance between adjacent protrusions 1 2 1 on the mold 1 1 6 and the distance between adjacent holes 1 0 2 on the cylindrical material ring 1 1 5 are the same, and the circumference of the cylindrical material ring 1 1 5
- the inside diameter of the vertex of the intermediate portion 1 19 is almost the same as the outer shape of the cylindrical material ring 1 15, and the protrusion 1 2 1 is fitted into the hole 10 2
- the molding surface of the mold 116 is in contact with the outer peripheral surface of the cylindrical material ring 115 at the vertex of the intermediate portion 119.
- the cylindrical ring with beads 127 is substantially a rotating body, and is substantially plane-symmetric with respect to a plane perpendicular to the axial direction at the axial center position as a plane of symmetry.
- the cylindrical material ring 1 1 5 is accurately positioned in the mold 1 1 6 Therefore, during electromagnetic forming, the material does not move in the axial direction at the center of the cylindrical material ring 115, so that the molding is performed with high precision.
- the protrusions that fit into the holes 1 0 2 of the cylindrical material ring 1 15 It is formed at the point where the outer diameter of the molding surface of the mold is the largest. It is desirable that the projection is formed at the center position in the axial direction, similarly to the mold 116.
- the outer diameter of the molding surface is substantially the same as the inner diameter of the cylindrical material ring 115.
- the cylindrical material ring 101 can also use the holes 102 formed in the circumferential direction (especially the hole row at or near the center) for positioning.
- Figure 16 shows the cylindrical material ring 1 31, a large number of holes 102 are formed in a row at equal intervals along the circumferential direction at both ends in the axial direction.
- This cylindrical material ring 13 1 was electromagnetically molded using a mold 10 6 shown in FIG. 13 to obtain a cylindrical ring 13 3 with beads (solid line) shown in FIG. 17 (a). Part).
- the imaginary line in Fig. 17 (a) when the resin 13 3 is melted and attached to both axial ends of the cylindrical ring 13 3 with beads, the shape shown in Fig. 17 (b) is obtained.
- the lug 13 enters the hole 102, and the beaded cylindrical ring 13 2 and the resin 13 3 are firmly connected.
- Figures 18 (a) and (b) show a cylindrical ring with a bead formed by electromagnetic forming, which is cut in the circumferential direction.
- the cutting direction is parallel to the axial direction (a) and oblique to the axial direction (b) ′.
- the cylindrical rings 1 3 4 and 1 3 5 The two can be fitted together through cuts 1 3 6 and 1 3 7). If necessary, the cylindrical ring with a bead 13 4, 1, 35 can be joined again by welding or the like to form a closed ring.
- Figures 19 (a) and (b) show the beaded cylindrical rings 1 34, 1 35 joined by welding (welded sections 1 38, 1 39).
- the cylindrical rings with beads 13 4 and 13 5 may be used either circumferentially separated (see Figure 18) or rejoined (see Figure 19). In some applications it may be desirable to cut diagonally to the axial direction. For example, when a cylindrical ring with beads is used as a reinforcing ring for a run-flat tire, the circumferential length t 1 of the cut 1 3 7 or the weld 1 3 9 in the cylindrical ring 1 3 If the width in the circumferential direction of the ground contact surface is set to be larger than t0, the whole vehicle weight is not applied to the relatively weak cut 1337 or the welded portion 1339 at once.
- the hole 102 can be used for joining. This will be described using a cylindrical ring 13 with a bead as an example.
- Fig. 20 shows a cylindrical ring with bead 1332 cut off in the circumferential direction, and the ends are partially overlapped and joined with rivets 1441.
- the rivets 14 1 penetrate through the overlapped holes 102 and join the ends.
- Fig. 21 shows a cylindrical ring with bead 1332 cut off in the circumferential direction, the ends are partially overlapped, and the ends are joined with molten resin 142.
- the resin 142 enters the overlapped holes 102, solidifies, and joins the ends.
- Figure 22 shows the cylindrical ring with bead 13 2 cut off in the circumferential direction, the cut 14 3 was opened, and this was joined with the molten resin 14 4 Things.
- the resin 144 enters the hole 102 at the end and solidifies, and joins the end. In this case, the cuts 144 may be closed and joined by the resin 144.
- the arrangement of the large number of holes 102 is as shown in Fig. 23 (a ) (See the cylindrical ring with beads 101 in Fig. 11), the zigzag arrangement shown in Fig. 23 (b) Is shifted by half a pitch). This is because, as shown in Figs. 23 (a) and (b), when oblique hole rows composed of a large number of holes 102 are seen, the distance between the hole rows is hi) More staggered arrangement (h
- FIG. 24 shows a mold 1 56 similar to the mold 106 (divided in the circumferential direction like the mold 6). This figure shows a method of electromagnetically forming a cylindrical material ring 1 using a plurality of divided pieces).
- the mold 1556 has a molding surface on the inner surface side, and grooves 151, 152 for bead molding are formed along the circumferential direction of the molding surface, and an intermediate portion between the two grooves 151, 152. 15 3 protrudes toward the inner diameter side, and the inner diameter of the molding surface is the smallest at the intermediate portion 15 3.
- the molding surface of the mold 156 substantially forms a rotating surface, and is substantially plane-symmetric with respect to a plane perpendicular to the axial direction at the center position of the mold 156 in the axial direction.
- a cylindrical raw material ring 1 is arranged inside a mold 106, and a magnetic core member 157 for electromagnetic molding is arranged on the circumference thereof.
- Outer diameter of cylindrical material ring 1 and middle part of mold 1 06 1 5 ⁇ 3 inner diameter Are approximately the same, and the molding surface of the mold 156 and the outer peripheral surface of the cylindrical material ring 1 are in contact with each other at the intermediate portion 153. Also, the axial center position of the molding surface of the mold 156 and the axial center position of the cylindrical material ring 1 are matched. '
- the cylindrical ring with beads 164 is substantially a rotating body, and is substantially symmetric with respect to a plane perpendicular to the axial direction at the axial center position as a plane of symmetry.
- the axial center position of the cylindrical material ring 1 is the position of the intermediate portion 153 where the inner diameter of the molding surface of the mold 156 is the smallest (the axial center position of the molding surface). In), a more uniform molding can be realized because the shape is positioned.
- Fig. 25 (a) to (d) show the method of manufacturing a cylindrical material ring.
- the cylindrical material ring 17 1 shown in (a) is abutted against the cylindrical material ring 1 shown earlier.
- the difference is that the joint (weld bead) 172 formed by joining is formed obliquely to the axial direction. Since the joint portion 172 is oblique, the circumferential weight balance of the cylindrical material 171 is improved as compared with the cylindrical material 1 in which the joint portion 2 is formed parallel to the axial direction.
- the cylindrical material ring 173 shown in Fig. 25 (b) is made by rolling a rolled sheet material into a spiral and joining the seams. Just one lap.
- the cylindrical material ring 173 has a long joint portion, but has an excellent circumferential weight balance.
- FIG. 25 (c) shows a spirally wound rolled sheet material, joining the seams, manufacturing a spiral tube in advance, cutting this into a predetermined length (the cutting position is indicated by virtual lines), and A method for manufacturing the cylindrical material ring 173 will be described.
- FIG. 25 (d) shows a case where a spiral tube having a joint 176 formed densely is manufactured, cut into a predetermined length (the cutting position is indicated by a virtual line), and each cylindrical material ring 175 is formed. The manufacturing method will be described.
- This cylindrical material ring 175 has an excellent balance of weight S in the circumferential direction and the force S at which the joint 176 becomes longer.
- a cylindrical material ring similar to that shown in Fig. 1 was formed from an aluminum alloy plate, and this was electromagnetically molded to produce a cylindrical ring with beads.
- the material aluminum alloy plate is an extruded plate (6061-F material), which is formed into a cylindrical shape by roll bending using three rolls so that the extrusion direction is the feed direction of roll bending.
- the ends were butt-welded (the joint was parallel to the center axis of the ring).
- the cylindrical ring had a thickness of 2.2 mm, an inner diameter of 494 mm, and an axial width of 222 mm.
- Laser welding and MIG welding laser welding, output 40 kW, speed 3 m / min, wire A53 56WY, ⁇ 1.2 mm, feeding speed 4 m / min, atmosphere Ar 100%, Mig welding was performed at a current of 80 A, voltage of 18 V, wire A5356WY, ⁇ 1.2 mm, feed rate of 60 cmZ, atmosphere of Ar 100%, and supply rate of 15 1 / Min.
- this cylindrical material ring was subjected to electromagnetic molding (diameter expansion) using the same mold and the coil for electromagnetic molding as shown in FIG.
- the minimum diameter of the molding surface of the mold (the diameter of the parallel part at both ends) 504mm, the diameter of the electromagnetic molding coil body 490 mm, the length of the magnetic field stabilization area of the electromagnetic molding coil body (the area where almost the same magnetic flux density is obtained) is 25 O mm, and the cylindrical ring is placed at the center of this magnetic field stabilization area.
- the energy was 45 kJ.
- Figure 2 shows a cylindrical ring with beads that has been electromagnetically formed.
- Each of the welding methods has an inside diameter of 500 mm, an outside diameter of 570 mm, an end thickness of 2 mm, and an axial width of 192 mm, and the bead has no dents and follows the molding surface of the mold. It was molded into a shape.
- the cylindrical ring with a bead with high precision can be manufactured with low cost and high productivity by electromagnetic molding.
- the cylindrical ring with beads formed by expanding the diameter has excellent characteristics particularly for reinforcing rings of flat tires. , ⁇
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Tires In General (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Moulding By Coating Moulds (AREA)
- Powder Metallurgy (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60325765T DE60325765D1 (de) | 2002-09-27 | 2003-09-26 | Herstellungsverfahren für einen hohlring mit kügelchen und gussform zur verwendung dafür |
AU2003272900A AU2003272900A1 (en) | 2002-09-27 | 2003-09-26 | Process for producing tubular ring with beads and die for use therein |
US10/528,430 US7487655B2 (en) | 2002-09-27 | 2003-09-26 | Process for producing tubular ring with beads and die for use therein |
EP03753961A EP1563924B1 (en) | 2002-09-27 | 2003-09-26 | Process for producing tubular ring with beads and die for use therein |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-283953 | 2002-09-27 | ||
JP2002283953 | 2002-09-27 | ||
JP2003-165732 | 2003-06-10 | ||
JP2003165732A JP4136802B2 (ja) | 2002-09-27 | 2003-06-10 | ビード付き円筒形リングの製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004028720A1 true WO2004028720A1 (ja) | 2004-04-08 |
Family
ID=32044640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/012372 WO2004028720A1 (ja) | 2002-09-27 | 2003-09-26 | ビード付き円筒形リングの製造方法及びその方法に用いる金型 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7487655B2 (ja) |
EP (1) | EP1563924B1 (ja) |
JP (1) | JP4136802B2 (ja) |
AT (1) | ATE419934T1 (ja) |
AU (1) | AU2003272900A1 (ja) |
DE (1) | DE60325765D1 (ja) |
WO (1) | WO2004028720A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103861932A (zh) * | 2014-04-01 | 2014-06-18 | 湖南大学 | 一种热塑性玻璃纤维增强铝合金层板的成形装置与方法 |
CN106807825A (zh) * | 2017-04-12 | 2017-06-09 | 华中科技大学 | 一种电磁渐进柔性复合成形方法 |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004112985A1 (ja) * | 2003-06-17 | 2004-12-29 | Honda Motor Co., Ltd. | ホイールリム、ホイール及びその製造方法 |
WO2005046976A1 (ja) * | 2003-11-12 | 2005-05-26 | Bridgest0Ne Corporation | ランフラットタイヤ支持体の製造方法、ランフラットタイヤ支持体および空気入りランフラットタイヤ |
JP4616678B2 (ja) * | 2005-03-25 | 2011-01-19 | 株式会社神戸製鋼所 | 包装容器およびその製造方法 |
JP4444222B2 (ja) | 2005-04-12 | 2010-03-31 | 三菱重工業株式会社 | 超伝導加速空洞の製造方法 |
JP5013711B2 (ja) * | 2005-12-27 | 2012-08-29 | 株式会社神戸製鋼所 | 自動車用ホイールリムの成形方法 |
EP2065105A1 (en) * | 2006-09-08 | 2009-06-03 | Fundacion Labein | Electromagnetic device and method for the geometric rectification of stamped metal parts |
JP5094333B2 (ja) * | 2007-10-24 | 2012-12-12 | 株式会社神戸製鋼所 | 電磁拡管方法 |
US20090196049A1 (en) * | 2008-02-01 | 2009-08-06 | Buschmann Jeffrey P | Lamp, lamp body and method of making lamp |
US8099989B2 (en) * | 2008-07-31 | 2012-01-24 | GM Global Technology Operations LLC | Electromagnetic shape calibration of tubes |
TWI351325B (en) * | 2008-12-09 | 2011-11-01 | Metal Ind Res & Dev Ct | Device for producing patterns and a method thereof |
JP5178624B2 (ja) * | 2009-05-11 | 2013-04-10 | 株式会社日立製作所 | 解析モデル生成装置 |
CN101590501B (zh) * | 2009-07-03 | 2011-05-11 | 武汉理工大学 | 镁合金板材温热电磁成形方法 |
US8567223B2 (en) * | 2009-09-21 | 2013-10-29 | Ford Global Technologies, Llc | Method and tool for expanding tubular members by electro-hydraulic forming |
US7905129B1 (en) | 2009-09-21 | 2011-03-15 | Ford Global Technologies, Llc | Method and tool for contracting tubular members by electro-hydraulic forming before hydroforming |
CN102451869A (zh) * | 2010-10-28 | 2012-05-16 | 财团法人金属工业研究发展中心 | 金属板件成形装置 |
DE102013106547B4 (de) * | 2013-06-24 | 2017-05-11 | Witzenmann Gmbh | Leitungselement und Verfahren zu dessen Herstellung, sowie Umformwerkzeug |
CN103861933B (zh) * | 2014-04-01 | 2015-11-25 | 湖南大学 | 一种波纹管成形装置及用该装置加工的波纹管 |
US10875073B2 (en) * | 2014-05-04 | 2020-12-29 | Belvac Production Machinery, Inc. | Systems and process improvements for high speed forming of containers using porous or other small mold surface features |
JP7038615B2 (ja) | 2018-06-28 | 2022-03-18 | ユニバーサル製缶株式会社 | 缶の成形装置、缶の成形装置の中子、および成形方法 |
CN110000271B (zh) * | 2019-05-21 | 2020-06-16 | 哈尔滨工业大学 | 一种波纹管电磁脉冲成形装置及方法 |
CN110814147B (zh) * | 2019-09-29 | 2021-08-17 | 中南大学 | 一种设有随形组合式线圈的大尺寸板料成型装置及方法 |
DE102020100102A1 (de) * | 2020-01-06 | 2021-07-08 | Volkswagen Aktiengesellschaft | Vorrichtung und Verfahren zur Herstellung eines dünnwandigen Bauteils |
CN111531031B (zh) * | 2020-06-04 | 2021-04-09 | 南京航空航天大学 | 基于磁流变弹性体的复杂曲面构件成形装置及方法 |
CN112246951B (zh) * | 2020-06-09 | 2021-07-30 | 北京航空航天大学 | 一种航空发动机封严环双向同步加载液压成形设备 |
CN111842586A (zh) * | 2020-06-18 | 2020-10-30 | 上海航天设备制造总厂有限公司 | 一种铝合金波纹管电磁脉冲成形方法及装置 |
CN112387843B (zh) * | 2020-10-27 | 2021-11-16 | 三峡大学 | 圆环电磁胀形分析、控制方法及胀形装置 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4520599Y1 (ja) * | 1966-03-01 | 1970-08-18 | ||
FR2488163A1 (fr) * | 1980-08-08 | 1982-02-12 | Stephanois Rech Mec | Bobine destinee a la mise en oeuvre generalisee du procede de magneto formage, et les procedes et moyens de fabrication de cette bobine |
DE3215029A1 (de) * | 1981-04-24 | 1982-12-09 | Gépipari Technológiai Intézet, Budapest | Aluminiumrad, insbesondere fahrzeugrad, sowie verfahren und vorrichtung zu seiner herstellung |
JPS5964125A (ja) * | 1982-10-01 | 1984-04-12 | Agency Of Ind Science & Technol | 電磁力によるパイプの切断方法 |
JPH04197524A (ja) * | 1990-11-27 | 1992-07-17 | Yuno Kogyo Kk | スチールホイールの形状修正方法 |
JPH0810864A (ja) * | 1994-06-29 | 1996-01-16 | Honda Motor Co Ltd | 電磁成形装置 |
JPH0824969A (ja) * | 1994-07-07 | 1996-01-30 | Japan Steel Works Ltd:The | 拡管用電磁成形器および管状成形品の製造方法 |
WO1997045216A1 (en) * | 1996-05-29 | 1997-12-04 | Northrop Grumman Corporation | Method and forming die for fabricating torque joints |
JP2001310602A (ja) * | 2000-04-26 | 2001-11-06 | Bridgestone Corp | 空気入りタイヤ用リム |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2976907A (en) * | 1958-08-28 | 1961-03-28 | Gen Dynamics Corp | Metal forming device and method |
BE664918A (ja) * | 1964-06-11 | 1900-01-01 | ||
US3501828A (en) * | 1968-08-05 | 1970-03-24 | Gen Motors Corp | Method of manufacturing a tie rod assembly |
US3581456A (en) * | 1968-11-18 | 1971-06-01 | American Can Co | Applying a threaded closure by magnetic impulse |
US3590464A (en) * | 1969-03-07 | 1971-07-06 | Gulf Energy & Environ Systems | Threaded fastener and method of making the same |
FR2320148A1 (fr) | 1975-08-05 | 1977-03-04 | Leroy Maurice | Procede et dispositif pour le formage d'une piece par champ magnetique ou onde de choc |
FR2570303B1 (fr) | 1984-09-19 | 1993-12-03 | Leroy Maurice | Dispositifs pour former des materiaux en utilisant des champs magnetiques intenses et pulses et un fluide |
US4702543A (en) * | 1986-04-30 | 1987-10-27 | G & H Technology, Inc. | Environmental seal and alignment means for an electromagnetically formed backshell |
JPH0739050B2 (ja) | 1986-05-26 | 1995-05-01 | 松下電工株式会社 | スパイラル管用切断装置 |
FR2610715A1 (fr) * | 1987-02-11 | 1988-08-12 | Munitions Ste Fse | Projectile perforant a noyau dur et guide ductile |
JPH0663251A (ja) | 1992-08-20 | 1994-03-08 | Toshiba Corp | 舞台吊り物制御装置 |
US5353617A (en) * | 1992-12-14 | 1994-10-11 | Xerox Corporation | Method of sizing metal sleeves using a magnetic field |
JPH06312226A (ja) | 1993-04-28 | 1994-11-08 | Showa Alum Corp | 長さ方向に横断面が変化した中空材の製造方法 |
FR2723329B1 (fr) * | 1994-08-02 | 1996-09-13 | Inst Francais Du Petrole | Methode et dispositif pour fabriquer un tube metallique ondule |
JP2756430B2 (ja) | 1994-08-31 | 1998-05-25 | 正昭 西 | タイヤ組立体用リム |
JPH09166111A (ja) | 1995-12-13 | 1997-06-24 | Showa Alum Corp | 金属製中空材同士の接合方法 |
DE19602951C2 (de) * | 1996-01-27 | 2000-12-07 | Steingroever Magnet Physik | Verfahren und Vorrichtung zum Aufweiten von Rohren oder rohrförmigen Teilen durch das Magnetfeld eines Strom-Impulses |
US5730016A (en) * | 1996-03-22 | 1998-03-24 | Elmag, Inc. | Method and apparatus for electromagnetic forming of thin walled metal |
JP3782853B2 (ja) | 1996-08-22 | 2006-06-07 | 日清紡績株式会社 | パンチプレス装置における多数穿孔金属板の製造方法 |
US5826320A (en) | 1997-01-08 | 1998-10-27 | Northrop Grumman Corporation | Electromagnetically forming a tubular workpiece |
DE19707090A1 (de) | 1997-02-24 | 1998-08-27 | Continental Ag | Luftbereiftes Fahrzeugrad |
US6065317A (en) * | 1997-04-12 | 2000-05-23 | Magnet-Physik Dr. Steingroever Gmbh | Apparatus and procedure for manufacturing metallic hollow bodies with structural bulges |
JP2002113626A (ja) | 2000-10-05 | 2002-04-16 | Torai Engineering Kk | 治具装置およびワークの加工方法 |
US6751994B2 (en) * | 2002-05-28 | 2004-06-22 | Magna International Inc. | Method and apparatus for forming a structural member |
KR100527482B1 (ko) * | 2003-11-10 | 2005-11-09 | 현대자동차주식회사 | 전자기 성형을 이용한 결합장치 |
-
2003
- 2003-06-10 JP JP2003165732A patent/JP4136802B2/ja not_active Expired - Fee Related
- 2003-09-26 WO PCT/JP2003/012372 patent/WO2004028720A1/ja active Application Filing
- 2003-09-26 AU AU2003272900A patent/AU2003272900A1/en not_active Abandoned
- 2003-09-26 US US10/528,430 patent/US7487655B2/en not_active Expired - Fee Related
- 2003-09-26 AT AT03753961T patent/ATE419934T1/de not_active IP Right Cessation
- 2003-09-26 DE DE60325765T patent/DE60325765D1/de not_active Expired - Lifetime
- 2003-09-26 EP EP03753961A patent/EP1563924B1/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4520599Y1 (ja) * | 1966-03-01 | 1970-08-18 | ||
FR2488163A1 (fr) * | 1980-08-08 | 1982-02-12 | Stephanois Rech Mec | Bobine destinee a la mise en oeuvre generalisee du procede de magneto formage, et les procedes et moyens de fabrication de cette bobine |
DE3215029A1 (de) * | 1981-04-24 | 1982-12-09 | Gépipari Technológiai Intézet, Budapest | Aluminiumrad, insbesondere fahrzeugrad, sowie verfahren und vorrichtung zu seiner herstellung |
JPS5964125A (ja) * | 1982-10-01 | 1984-04-12 | Agency Of Ind Science & Technol | 電磁力によるパイプの切断方法 |
JPH04197524A (ja) * | 1990-11-27 | 1992-07-17 | Yuno Kogyo Kk | スチールホイールの形状修正方法 |
JPH0810864A (ja) * | 1994-06-29 | 1996-01-16 | Honda Motor Co Ltd | 電磁成形装置 |
JPH0824969A (ja) * | 1994-07-07 | 1996-01-30 | Japan Steel Works Ltd:The | 拡管用電磁成形器および管状成形品の製造方法 |
WO1997045216A1 (en) * | 1996-05-29 | 1997-12-04 | Northrop Grumman Corporation | Method and forming die for fabricating torque joints |
JP2001310602A (ja) * | 2000-04-26 | 2001-11-06 | Bridgestone Corp | 空気入りタイヤ用リム |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103861932A (zh) * | 2014-04-01 | 2014-06-18 | 湖南大学 | 一种热塑性玻璃纤维增强铝合金层板的成形装置与方法 |
CN106807825A (zh) * | 2017-04-12 | 2017-06-09 | 华中科技大学 | 一种电磁渐进柔性复合成形方法 |
CN106807825B (zh) * | 2017-04-12 | 2018-07-06 | 华中科技大学 | 一种电磁渐进柔性复合成形方法 |
Also Published As
Publication number | Publication date |
---|---|
DE60325765D1 (de) | 2009-02-26 |
JP2004160542A (ja) | 2004-06-10 |
ATE419934T1 (de) | 2009-01-15 |
EP1563924A4 (en) | 2007-04-04 |
EP1563924B1 (en) | 2009-01-07 |
EP1563924A1 (en) | 2005-08-17 |
AU2003272900A1 (en) | 2004-04-19 |
JP4136802B2 (ja) | 2008-08-20 |
US20060107715A1 (en) | 2006-05-25 |
US7487655B2 (en) | 2009-02-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2004028720A1 (ja) | ビード付き円筒形リングの製造方法及びその方法に用いる金型 | |
JP5244075B2 (ja) | 筒状部材の製造方法 | |
JP4713471B2 (ja) | 縦方向にスロットを有し、そして、異なる断面を有するいくつかの縦方向セグメントを備えている中空形材を、金属シートから製造する方法 | |
JP2010149182A5 (ja) | ||
US5734142A (en) | Method of welding electrically conductive metal profiles | |
US4266417A (en) | Steel flanged wheel rims for motorized bicycles or two-wheeled vehicles and a process for producing the rims | |
JP5425148B2 (ja) | クランプリング | |
JPH0747438A (ja) | スエージング用リングとその製造方法 | |
JPWO2017122656A1 (ja) | スピニング装置およびスピニング方法 | |
JP2005152920A (ja) | フランジ付き管状部材及びその製造方法 | |
EP1504844B1 (en) | Method of manufacturing annular body | |
US4345360A (en) | Method of forming a metal wheel | |
US7441335B2 (en) | Methods of electromagnetic forming aluminum alloy wheel for automotive use | |
JP4429117B2 (ja) | アルミニウム合金製自動車用ホイールリムの製造方法 | |
JP4628343B2 (ja) | ビード付き円筒形リングの製造方法 | |
JP5749708B2 (ja) | 車両用ホイールリムの製造方法 | |
JP2006305587A (ja) | アルミニウム製管材の端部拡管方法 | |
US1991988A (en) | Method for forming axle housings | |
CN113665291A (zh) | 一种车轮轮辋及其加工工艺 | |
US5832609A (en) | Method for producing a variable thickness rim for a vehicle wheel | |
JP3791977B2 (ja) | 自動車ホイール用リムの製造方法 | |
JPH0819816A (ja) | 円筒部材の製造方法 | |
JPH0839178A (ja) | 中間膨出部に窓穴を有する管状製品の製造方法 | |
US6584824B1 (en) | Apparatus for producing a vehicle wheel rim | |
JPH0455029A (ja) | ホイール用リムの製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2003753961 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 2003753961 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2006107715 Country of ref document: US Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10528430 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 10528430 Country of ref document: US |