US20070006628A1 - Molding method by forging and molding method for case - Google Patents
Molding method by forging and molding method for case Download PDFInfo
- Publication number
- US20070006628A1 US20070006628A1 US10/542,686 US54268604A US2007006628A1 US 20070006628 A1 US20070006628 A1 US 20070006628A1 US 54268604 A US54268604 A US 54268604A US 2007006628 A1 US2007006628 A1 US 2007006628A1
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- US
- United States
- Prior art keywords
- forming
- case
- boss
- thickness
- forging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims description 54
- 238000005242 forging Methods 0.000 title claims description 16
- 238000000465 moulding Methods 0.000 title 2
- 239000000463 material Substances 0.000 claims abstract description 39
- 230000002093 peripheral effect Effects 0.000 claims abstract description 17
- 239000013067 intermediate product Substances 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract 3
- 239000000047 product Substances 0.000 description 25
- 238000004519 manufacturing process Methods 0.000 description 17
- 238000010586 diagram Methods 0.000 description 11
- 238000005520 cutting process Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000011162 core material Substances 0.000 description 4
- 238000010409 ironing Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K21/00—Making hollow articles not covered by a single preceding sub-group
- B21K21/02—Producing blanks in the shape of discs or cups as semifinished articles for making hollow articles, e.g. to be deep-drawn or extruded
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/28—Making machine elements wheels; discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/28—Making machine elements wheels; discs
- B21K1/30—Making machine elements wheels; discs with gear-teeth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K21/00—Making hollow articles not covered by a single preceding sub-group
Definitions
- the present invention relates to a method of forming by forging and a case forming method.
- cup-shaped cases with a boss provided on the inside are widely employed in various fields.
- the case of the electromagnetically controlled valve of an injection apparatus used to supply fuel to the cylinders in an internal combustion engine is a cup-shaped member with an integrally formed inside boss for affixing the electromagnetic coil and the magnetic core.
- Cup-shaped cases such as these having an inside boss are also usually formed by forging, for cost reasons, and in the intermediate product form require the formation of overlays on the plate core material.
- Japanese Unexamined Patent Application publication No. 2000-94088 discloses a method of forming a cup with an inside boss in which the material is obtained by spheroidizing annealing a forged slab and subjecting the material to shot bonderizing treatment. Because the method includes the step of cutting round steel bar, it endeavors to reduce the cutting cost by using round bar having a relatively small diameter, and gives the material a thick configuration suitable for forming a cup having an internal boss by forging the cut sections of round bar. To eliminate such tasks, there is also known a method of forming a case having an internal boss by preparing and forging a flat steel slab.
- An object of the invention is to provide a method of forming by forging and a case forming method capable of overcoming the aforesaid problems of the prior art.
- An object of the invention is to provide a method of forming for manufacturing a high-quality case by blanking of sheet material.
- Another object of the invention is to provide a case forming method capable of manufacturing high-quality cases at low cost.
- a characterizing feature of the invention is that the method of forming by forging material comprises a first step of preparing sheet material, and a second step in which a thickness of a circumferential portion of the material is made thinner than a thickness of a center portion of the material.
- the case forming method comprises a first step of preparing the sheet material, and a second step in which a thickness of a circumferential portion of the material is formed to be thinner than a thickness of a center portion of the material.
- the method of forming a cup-shaped case having an internal boss comprises a step of preparing sheet material, a step of forming a circumferential portion of the material to be thinner than a thickness of a center portion of the material while simultaneously time stamping-forming the thicker center portion into a concave shape, and a step of using forward drawing to stamping-form the intermediate product formed by the above stamping-forming into a cup-shaped member having a bottom that is thicker than the peripheral wall.
- FIG. 1 is a diagram for illustrating the process of forming a case with an internal boss in accordance with the invention.
- FIG. 2 is a diagram for illustrating the process of forming a case with an internal boss in accordance with the invention.
- FIG. 3 is a diagram for illustrating the process of forming a case with an internal boss in accordance with the invention.
- FIG. 4 is a diagram for illustrating the process of forming a case with an internal boss in accordance with the invention.
- FIG. 5 is a diagram for illustrating the process of forming a case with an internal boss in accordance with the invention.
- FIG. 6 is a diagram illustrating the forming process when the first intermediate formed product shown in FIG. 2 is used to manufacture a gear.
- FIG. 7 is a diagram illustrating the forming process when the first intermediate formed product shown in FIG. 2 is used to manufacture a gear.
- FIG. 8 is a diagram illustrating the forming process when the first intermediate formed product shown in FIG. 2 is used to manufacture a gear.
- FIG. 9 is a diagram illustrating the forming process when the first intermediate formed product shown in FIG. 2 is used to manufacture a pulley.
- FIG. 10 is a diagram illustrating the forming process when the first intermediate formed product shown in FIG. 2 is used to manufacture a pulley.
- FIG. 11 is a diagram illustrating the forming process when the first intermediate formed product shown in FIG. 2 is used to manufacture a pulley.
- FIGS. 1 to 5 are process ironings for explaining an embodiment of method of the invention, applied to the manufacture of the case of an electromagnetically controlled valve of a fuel injection apparatus used to supply fuel to an internal combustion engine.
- the sheet member shown in FIG. 1 is prepared as material 1 .
- the material 1 can be obtained by, for example, by blanking and stamping low-carbon steel sheet.
- material 1 is a disk-shaped member, but it does not have to be disk-shaped.
- upsetting is used to reduce the thickness of the periphery compared to the thickness at the center portion while forming a concavity in the thick center portion, forming the first intermediate formed product 2 shaped as shown in FIG. 2 .
- the intermediate formed product 2 shown in FIG. 2 has a circumferential thin annular portion 21 , a thick portion 22 on the inside of the thin annular portion 21 that is thicker than the thin annular portion 21 , and a concave portion 22 A on the center portion of the thick portion 22 .
- the thick portion 22 is formed into at least the case bottom and internal boss, so it is thickened to allow for at least the amount of material for the internal boss formed integrally with the bottom.
- the first intermediate formed product 2 it is preferable for the first intermediate formed product 2 to be annealed to prevent cracking occurring in the subsequent process steps.
- the first intermediate formed product 2 is stamping-formed to form the thick portion 22 into a bottom 32 and the thin annular portion 21 into a peripheral wall 31 that extends integrally from the bottom 32 , thereby forming a second intermediate formed product 3 shaped as shown in FIG. 3 .
- the second intermediate formed product 3 of FIG. 3 can readily be obtained by the drawing and ironing process.
- drawing and ironing are used to slightly thicken the outer edge 31 A of the peripheral wall 31 , giving the wall 31 a skirt-like shape.
- the thickness of the peripheral wall 31 is less than the thickness of the bottom 32 . If an external flange is not needed, it is not necessary to thicken the outer edge 31 A.
- the case 5 having an internal boss shown in FIG. 5 .
- the bottom 52 and peripheral wall 51 are approximately the same thickness and the internal boss 53 and external boss 54 on the bottom 52 are coaxial.
- the internal boss 53 is provided in order to incorporate an electromagnetic solenoid, and the external boss 54 is provided to accommodate a bearing.
- An external flange 51 A on the outside edge of the peripheral wall 51 extends integrally at a right-angle to the peripheral wall 51 .
- the first intermediate formed product 2 shown in FIG. 2 is a general-purpose member.
- the first intermediate formed product 2 can be used as an intermediate product in the manufacturing of, for example, sprockets, gears, pulleys, cams, links and fixing brackets.
- the first intermediate formed product 2 is prepared and subjected to forward/backward drawing forging steps whereby the thick center portion of the first intermediate formed product 2 is formed into a boss 61 and the thin portion is formed into a thin annular portion 62 having a uniform thickness.
- the boss 61 is cup-shaped, formed as a cylinder with a bottom.
- the intermediate formed product in FIG. 6 is stamped to remove the bottom 61 A of the boss 61 , forming the cylindrical boss 63 shown in FIG. 7 .
- the periphery of the thin annular portion 62 is trimmed and blanked, forming a plurality of teeth 62 A to thereby obtain a gear 6 having a boss 63 ( FIG. 8 ).
- the steps of using the first intermediate formed product 2 of FIG. 2 to manufacture a pulley will now be described with reference to FIGS. 9 to 11 .
- the first intermediate formed product 2 is prepared and stamped to increase the thickness of the peripheral edge of the thin portion, thereby forming the outer ring 71 shown in FIG. 9 .
- the outer ring 71 After forming the outer ring 71 , forward/backward drawing forging steps are used whereby the thick center portion is formed into a boss 72 and a thin annular portion 73 having a uniform thickness is formed between the outer ring 71 and the boss 72 ( FIG. 10 ).
- the boss 72 is cup-shaped, formed as a cylinder with a bottom, and the outer ring 71 is formed to have the required dimensions for outer ring 74 .
- a pulley 7 is obtained comprising the boss 75 and the outer ring 74 integrated by the thin annular portion 73 of uniform thickness.
- a groove may be formed on the outer ring 74 by machining or the like.
- the method of forming by forging and a case forming method according to the invention is useful for the low-cost fabrication of parts such as sprockets, gears, pulleys, cams and fixing brackets, and for the low-cost, high-quality manufacture of cup-shaped cases with an internal boss.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Gears, Cams (AREA)
- Pulleys (AREA)
Abstract
Description
- The present invention relates to a method of forming by forging and a case forming method.
- Various types of machine parts and the like are often manufactured by forging for cost reasons. In such cases, it often happens that the intermediate product requires the formation of an overlay on the plate core material. This is the case in, for example, the manufacture of parts such as sprockets, gears, pulleys, cams, links and fixing brackets.
- Also, cup-shaped cases with a boss provided on the inside are widely employed in various fields. For example, the case of the electromagnetically controlled valve of an injection apparatus used to supply fuel to the cylinders in an internal combustion engine is a cup-shaped member with an integrally formed inside boss for affixing the electromagnetic coil and the magnetic core. Cup-shaped cases such as these having an inside boss are also usually formed by forging, for cost reasons, and in the intermediate product form require the formation of overlays on the plate core material.
- In the prior art the method of fabrication used in cases such as these in which material is to be shaped by forging and the intermediate product requires the formation of an overlay on plate core material, has been to press-form cylindrical material obtained by cutting low-carbon round steel bar.
- Japanese Unexamined Patent Application publication No. 2000-94088 discloses a method of forming a cup with an inside boss in which the material is obtained by spheroidizing annealing a forged slab and subjecting the material to shot bonderizing treatment. Because the method includes the step of cutting round steel bar, it endeavors to reduce the cutting cost by using round bar having a relatively small diameter, and gives the material a thick configuration suitable for forming a cup having an internal boss by forging the cut sections of round bar. To eliminate such tasks, there is also known a method of forming a case having an internal boss by preparing and forging a flat steel slab.
- However, in the case of the above method in which the intermediate product is formed by stamping cylindrical material obtained by cutting low-carbon round steel bar, there are problems such as a high cutting cost, making the end product costly.
- Also, when a cup-shaped case is formed with an internal boss by the forging of sheet material, the cup is stamping-formed by the forward drawing of relatively thin sheet material, so there tends to be a lack of bulk which can make it difficult to ensure that the bottom is thick enough to form the internal boss by forming the bottom of the cup thicker than the peripheral wall.
- An object of the invention is to provide a method of forming by forging and a case forming method capable of overcoming the aforesaid problems of the prior art.
- An object of the invention is to provide a method of forming for manufacturing a high-quality case by blanking of sheet material.
- Another object of the invention is to provide a case forming method capable of manufacturing high-quality cases at low cost.
- A characterizing feature of the invention is that the method of forming by forging material comprises a first step of preparing sheet material, and a second step in which a thickness of a circumferential portion of the material is made thinner than a thickness of a center portion of the material.
- Another characterizing feature of the invention is that the case forming method comprises a first step of preparing the sheet material, and a second step in which a thickness of a circumferential portion of the material is formed to be thinner than a thickness of a center portion of the material.
- Another characterizing feature of the invention is that the method of forming a cup-shaped case having an internal boss comprises a step of preparing sheet material, a step of forming a circumferential portion of the material to be thinner than a thickness of a center portion of the material while simultaneously time stamping-forming the thicker center portion into a concave shape, and a step of using forward drawing to stamping-form the intermediate product formed by the above stamping-forming into a cup-shaped member having a bottom that is thicker than the peripheral wall.
-
FIG. 1 is a diagram for illustrating the process of forming a case with an internal boss in accordance with the invention. -
FIG. 2 is a diagram for illustrating the process of forming a case with an internal boss in accordance with the invention. -
FIG. 3 is a diagram for illustrating the process of forming a case with an internal boss in accordance with the invention. -
FIG. 4 is a diagram for illustrating the process of forming a case with an internal boss in accordance with the invention. -
FIG. 5 is a diagram for illustrating the process of forming a case with an internal boss in accordance with the invention. -
FIG. 6 is a diagram illustrating the forming process when the first intermediate formed product shown inFIG. 2 is used to manufacture a gear. -
FIG. 7 is a diagram illustrating the forming process when the first intermediate formed product shown inFIG. 2 is used to manufacture a gear. -
FIG. 8 is a diagram illustrating the forming process when the first intermediate formed product shown inFIG. 2 is used to manufacture a gear. -
FIG. 9 is a diagram illustrating the forming process when the first intermediate formed product shown inFIG. 2 is used to manufacture a pulley. -
FIG. 10 is a diagram illustrating the forming process when the first intermediate formed product shown inFIG. 2 is used to manufacture a pulley. -
FIG. 11 is a diagram illustrating the forming process when the first intermediate formed product shown inFIG. 2 is used to manufacture a pulley. - Embodiments of the invention will now be explained in detail with reference to the drawings.
- FIGS. 1 to 5 are process ironings for explaining an embodiment of method of the invention, applied to the manufacture of the case of an electromagnetically controlled valve of a fuel injection apparatus used to supply fuel to an internal combustion engine.
- First, the sheet member shown in
FIG. 1 is prepared as material 1. The material 1 can be obtained by, for example, by blanking and stamping low-carbon steel sheet. Here, material 1 is a disk-shaped member, but it does not have to be disk-shaped. - Next, upsetting is used to reduce the thickness of the periphery compared to the thickness at the center portion while forming a concavity in the thick center portion, forming the first intermediate formed
product 2 shaped as shown inFIG. 2 . The intermediate formedproduct 2 shown inFIG. 2 has a circumferential thinannular portion 21, athick portion 22 on the inside of the thinannular portion 21 that is thicker than the thinannular portion 21, and aconcave portion 22A on the center portion of thethick portion 22. - In subsequent process steps, the
thick portion 22 is formed into at least the case bottom and internal boss, so it is thickened to allow for at least the amount of material for the internal boss formed integrally with the bottom. Before being processed in the next step, it is preferable for the first intermediate formedproduct 2 to be annealed to prevent cracking occurring in the subsequent process steps. - In the following drawing and ironing step, the first intermediate formed
product 2 is stamping-formed to form thethick portion 22 into abottom 32 and the thinannular portion 21 into aperipheral wall 31 that extends integrally from thebottom 32, thereby forming a second intermediate formedproduct 3 shaped as shown inFIG. 3 . Since the first intermediate formedproduct 2 has theconcave portion 22A in the center thereof, the second intermediate formedproduct 3 ofFIG. 3 can readily be obtained by the drawing and ironing process. In order to form an external flange around the edge of the peripheral wall of the case, drawing and ironing are used to slightly thicken theouter edge 31A of theperipheral wall 31, giving the wall 31 a skirt-like shape. The thickness of theperipheral wall 31 is less than the thickness of thebottom 32. If an external flange is not needed, it is not necessary to thicken theouter edge 31A. - In the next forward/backward drawing to which the second intermediate formed
product 3 is subjected to form it into the third intermediate formedproduct 4 shown inFIG. 4 ,internal boss 43 is formed on the inside of thebottom 42,external boss 44 is formed on the outside of thebottom 42, andexternal flange 41A is formed on the edge of theperipheral wall 41. Only forward drawing is required in cases in which theexternal boss 44 is not needed. - In the next step, two dies are used to stamp the third intermediate formed
product 4 into the intended final shape to obtain, as the final product, thecase 5 having an internal boss shown inFIG. 5 . In thecase 5 thus formed, thebottom 52 andperipheral wall 51 are approximately the same thickness and theinternal boss 53 andexternal boss 54 on thebottom 52 are coaxial. Theinternal boss 53 is provided in order to incorporate an electromagnetic solenoid, and theexternal boss 54 is provided to accommodate a bearing. Anexternal flange 51A on the outside edge of theperipheral wall 51 extends integrally at a right-angle to theperipheral wall 51. - When a case with an internal boss is formed in accordance with the steps of FIGS. 1 to 5, since it is possible to draw sheet material to form an internal boss and/or an external boss in the bottom, it is possible to readily manufacture a high-quality product at a lower cost compared to the prior art in which a case is formed with an internal boss from a cut section of round bar. Moreover, in a modified version of the example shown in
FIG. 5 , it is also possible to form just an internal boss. In particular, using the same volume to form just an internal boss makes it possible to form an internal boss that is higher than when both internal and external bosses are formed. - While the above explanation has been made with reference to one embodiment of the invention, the first intermediate formed
product 2 shown inFIG. 2 is a general-purpose member. The first intermediate formedproduct 2 can be used as an intermediate product in the manufacturing of, for example, sprockets, gears, pulleys, cams, links and fixing brackets. - The steps of using the first intermediate formed
product 2 ofFIG. 2 to manufacture a gear will now be described with reference to FIGS. 6 to 8. First, the first intermediate formedproduct 2 is prepared and subjected to forward/backward drawing forging steps whereby the thick center portion of the first intermediate formedproduct 2 is formed into aboss 61 and the thin portion is formed into a thinannular portion 62 having a uniform thickness. Here, theboss 61 is cup-shaped, formed as a cylinder with a bottom. - The intermediate formed product in
FIG. 6 is stamped to remove the bottom 61A of theboss 61, forming thecylindrical boss 63 shown inFIG. 7 . - Then, the periphery of the thin
annular portion 62 is trimmed and blanked, forming a plurality ofteeth 62A to thereby obtain agear 6 having a boss 63 (FIG. 8 ). - The steps of using the first intermediate formed
product 2 ofFIG. 2 to manufacture a pulley will now be described with reference to FIGS. 9 to 11. First, the first intermediate formedproduct 2 is prepared and stamped to increase the thickness of the peripheral edge of the thin portion, thereby forming theouter ring 71 shown inFIG. 9 . - After forming the
outer ring 71, forward/backward drawing forging steps are used whereby the thick center portion is formed into aboss 72 and a thinannular portion 73 having a uniform thickness is formed between theouter ring 71 and the boss 72 (FIG. 10 ). Here, theboss 72 is cup-shaped, formed as a cylinder with a bottom, and theouter ring 71 is formed to have the required dimensions forouter ring 74. - Then, the bottom 72A of the
boss 72 is punched to remove it, forming thecylindrical boss 75 shown inFIG. 11 . - In accordance with the above steps, a
pulley 7 is obtained comprising theboss 75 and theouter ring 74 integrated by the thinannular portion 73 of uniform thickness. For end product application, a groove may be formed on theouter ring 74 by machining or the like. - The method of forming by forging and a case forming method according to the invention, as described in the foregoing, is useful for the low-cost fabrication of parts such as sprockets, gears, pulleys, cams and fixing brackets, and for the low-cost, high-quality manufacture of cup-shaped cases with an internal boss.
Claims (17)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2004/005443 WO2005099929A1 (en) | 2004-04-16 | 2004-04-16 | Molding method by forging and molding method for case |
Publications (1)
Publication Number | Publication Date |
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US20070006628A1 true US20070006628A1 (en) | 2007-01-11 |
Family
ID=35149824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US10/542,686 Abandoned US20070006628A1 (en) | 2004-04-16 | 2004-04-16 | Molding method by forging and molding method for case |
Country Status (6)
Country | Link |
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US (1) | US20070006628A1 (en) |
EP (1) | EP1736255B1 (en) |
JP (1) | JPWO2005099929A1 (en) |
CN (1) | CN1784278A (en) |
DE (1) | DE602004030279D1 (en) |
WO (1) | WO2005099929A1 (en) |
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US20120299673A1 (en) * | 2007-04-19 | 2012-11-29 | Indimet Inc. | Solenoid housing and method of providing a solenoid housing |
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US11148186B2 (en) * | 2017-04-03 | 2021-10-19 | Matec Co., Ltd. | Method of manufacturing cup structure |
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- 2004-04-16 US US10/542,686 patent/US20070006628A1/en not_active Abandoned
- 2004-04-16 CN CNA2004800016907A patent/CN1784278A/en active Pending
- 2004-04-16 JP JP2006519123A patent/JPWO2005099929A1/en active Pending
- 2004-04-16 WO PCT/JP2004/005443 patent/WO2005099929A1/en not_active Application Discontinuation
- 2004-04-16 DE DE602004030279T patent/DE602004030279D1/en not_active Expired - Lifetime
- 2004-04-16 EP EP04728001A patent/EP1736255B1/en not_active Expired - Lifetime
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Cited By (15)
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US9636741B2 (en) * | 2007-04-19 | 2017-05-02 | Indimet, Inc. | Solenoid housing and method of providing a solenoid housing |
US20120299673A1 (en) * | 2007-04-19 | 2012-11-29 | Indimet Inc. | Solenoid housing and method of providing a solenoid housing |
US10566122B2 (en) * | 2007-04-19 | 2020-02-18 | Indimet Inc. | Solenoid housing and method of providing a solenoid housing |
US20170243685A1 (en) * | 2007-04-19 | 2017-08-24 | Indimet, Inc. | Solenoid Housing and Method of Providing a Solenoid Housing |
US7823432B2 (en) * | 2008-05-16 | 2010-11-02 | Ibaraki Steel Center Co., Ltd. | Method of forming spring washer blind-holes into a piston for an automobile transmission |
US20090282885A1 (en) * | 2008-05-16 | 2009-11-19 | Masakazu Ooka | Method of forming spring washer blind-holes into a piston for an automobile transmission |
US20110016944A1 (en) * | 2009-07-24 | 2011-01-27 | Canon Kabushiki Kaisha | Method of producing metallic member |
US9079808B2 (en) | 2010-10-06 | 2015-07-14 | Nippon Kayaku Kabushiki Kaisha | Gas generator, gas generator holder and method for manufacturing gas generator holder |
US20140111295A1 (en) * | 2011-04-07 | 2014-04-24 | Indimet Inc. | Solenoid housing and method of making the same |
US9478340B2 (en) * | 2011-04-07 | 2016-10-25 | Indimet, Inc. | Solenoid housing and method of making the same |
US20150020563A1 (en) * | 2013-07-18 | 2015-01-22 | GM Global Technology Operations LLC | Method for the manufacture of motor vehicle body parts |
US10464116B2 (en) | 2014-03-28 | 2019-11-05 | Nippon Steel Corporation | Method of manufacturing plate-like molded body having a plurality of thickened portions, and plate-like molded body having a plurality of thickened portions |
WO2015147297A1 (en) * | 2014-03-28 | 2015-10-01 | 新日鐵住金株式会社 | Method for manufacturing sheet-shaped formed component having multiple sections of increased thickness, and sheet-shaped formed component having multiple sections of increased thickness |
US11192162B2 (en) * | 2016-04-04 | 2021-12-07 | Thyssenkrupp Steel Europe Ag | Method and device for forming a semi-finished product |
US11148186B2 (en) * | 2017-04-03 | 2021-10-19 | Matec Co., Ltd. | Method of manufacturing cup structure |
Also Published As
Publication number | Publication date |
---|---|
EP1736255A4 (en) | 2007-05-02 |
WO2005099929A1 (en) | 2005-10-27 |
EP1736255A1 (en) | 2006-12-27 |
EP1736255A8 (en) | 2007-06-20 |
JPWO2005099929A1 (en) | 2007-08-16 |
CN1784278A (en) | 2006-06-07 |
DE602004030279D1 (en) | 2011-01-05 |
EP1736255B1 (en) | 2010-11-24 |
WO2005099929A8 (en) | 2007-04-12 |
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