JPS57199519A - Shaping method of split-ring - Google Patents
Shaping method of split-ringInfo
- Publication number
- JPS57199519A JPS57199519A JP8507881A JP8507881A JPS57199519A JP S57199519 A JPS57199519 A JP S57199519A JP 8507881 A JP8507881 A JP 8507881A JP 8507881 A JP8507881 A JP 8507881A JP S57199519 A JPS57199519 A JP S57199519A
- Authority
- JP
- Japan
- Prior art keywords
- side ring
- ring
- die
- split
- axial direction
- 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.)
- Granted
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
- B21D53/00—Making other particular articles
- B21D53/16—Making other particular articles rings, e.g. barrel hoops
- B21D53/18—Making other particular articles rings, e.g. barrel hoops of hollow or C-shaped cross-section, e.g. for curtains, for eyelets
Abstract
PURPOSE:To elevate plane accuracy and to set a gap of a split to zero, by pressing a ring into a die whose diameter is smaller than the outside diameter before the ring is shaped, putting compressive force in the circumferential direction, putting pressing force in the axial direction, too, and reforming swell and torsion of a plane part of the ring. CONSTITUTION:A side ring 1 having a split 6 is placed on a die 18. A punch 19 is made to go down together with a fitting plate 20, is made to press-contact with the side ring 1, and after that, the side ring 1 and the die 18 are further made to go down, the side ring 1 is pushed in until it is pressed strongly by the punch 19, a die 21 and the die 18, and the side ring 1 is pushed into a compressing part 22 from a slide-in part 23. In this regard, the inside diameter of the compressing part 22 is made a little smaller than the outside diameter of the side ring 1. In this way, as for the side ring 1, compressive force is put in its circumferential direction, a gap of the split 6 becomes zero, and also the diameter and the sectional shape are finished exactly. Also, pressing force is put in the axial direction of the side ring, and swell and torsion in the axial direction can be reformed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8507881A JPS6049050B2 (en) | 1981-06-03 | 1981-06-03 | How to shape a ring with cuts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8507881A JPS6049050B2 (en) | 1981-06-03 | 1981-06-03 | How to shape a ring with cuts |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57199519A true JPS57199519A (en) | 1982-12-07 |
JPS6049050B2 JPS6049050B2 (en) | 1985-10-30 |
Family
ID=13848579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8507881A Expired JPS6049050B2 (en) | 1981-06-03 | 1981-06-03 | How to shape a ring with cuts |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6049050B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61140335A (en) * | 1984-12-12 | 1986-06-27 | Oiles Ind Co Ltd | Reforming method of bush wound into cylindrical shape |
US4928512A (en) * | 1988-11-14 | 1990-05-29 | Olin Corporation | Die set for the formation of cavities for metal packages to house electronic devices |
JPH03275238A (en) * | 1990-11-26 | 1991-12-05 | Mihama Seisakusho:Kk | Forming method for loop member to be formed |
CN116765276A (en) * | 2023-08-24 | 2023-09-19 | 苏州铭峰精密机械有限公司 | High-precision C-shaped workpiece extrusion molding method and molding progressive die |
-
1981
- 1981-06-03 JP JP8507881A patent/JPS6049050B2/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61140335A (en) * | 1984-12-12 | 1986-06-27 | Oiles Ind Co Ltd | Reforming method of bush wound into cylindrical shape |
US4928512A (en) * | 1988-11-14 | 1990-05-29 | Olin Corporation | Die set for the formation of cavities for metal packages to house electronic devices |
WO1990005600A1 (en) * | 1988-11-14 | 1990-05-31 | Olin Corporation | Die set for the formation of cavities for metal packages to house electronic devices |
JPH03275238A (en) * | 1990-11-26 | 1991-12-05 | Mihama Seisakusho:Kk | Forming method for loop member to be formed |
CN116765276A (en) * | 2023-08-24 | 2023-09-19 | 苏州铭峰精密机械有限公司 | High-precision C-shaped workpiece extrusion molding method and molding progressive die |
CN116765276B (en) * | 2023-08-24 | 2023-11-28 | 苏州铭峰精密机械有限公司 | High-precision C-shaped workpiece extrusion molding method and molding progressive die |
Also Published As
Publication number | Publication date |
---|---|
JPS6049050B2 (en) | 1985-10-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES456056A1 (en) | Method of fabricating a substantially U-shaped body and apparatus for the performance thereof | |
ES8402184A1 (en) | Method for the local deforming of round tubes into tubes with flat sides, and die for doing the same. | |
JPS57199519A (en) | Shaping method of split-ring | |
JPS55126318A (en) | Forming press for square steel pipe | |
ATE4874T1 (en) | DEVICE FOR FORMING TUBULAR PARTS BY ISOSTATIC PRESSING. | |
ES8608372A1 (en) | Crimping press capable of crimping terminals onto a range of wire sizes. | |
JPS57154330A (en) | Structure of press working mold | |
EP0080791A3 (en) | Method of and apparatus for shaping neck and providing terminal curl on can end | |
JPS56136249A (en) | Production for shoe for swash plate type compressor | |
JPS5674343A (en) | Production by cold forging of stepped shaft | |
JPS5524753A (en) | Drawing die | |
JPS5758922A (en) | Forming device for curved plate having corrugation | |
JPS5794438A (en) | Manufacture for aluminium wheel rim | |
FR2146121A1 (en) | Plastic medical probes - formed by hf moulding | |
JPS5545588A (en) | Manufacture of cylindrical body with flange or flare | |
JPS5659553A (en) | Method and device for sizing | |
JPS5732835A (en) | Equipment for forming outer ring of uniform speed joint | |
JPS5756121A (en) | Simultanous working method of o-ring holding groove in pipe expanding work | |
JPS58122122A (en) | Method and apparatus for forming cylindrical body | |
JPS5530330A (en) | Groove forming method and device thereof | |
JPS5564929A (en) | Production of end closed deck plate having handle part and anti-falling protrusion | |
JPS56128627A (en) | Forming method of shafts protrusively provided to a metallic sheet | |
SU1199401A1 (en) | Apparatus for briquetting metal granules | |
JPS57121824A (en) | Manufacture of magnetron anode | |
JPS55122645A (en) | Internal thread forming method by press swaging |