JPS57199527A - Collar forming method on a part of pipe wall - Google Patents
Collar forming method on a part of pipe wallInfo
- Publication number
- JPS57199527A JPS57199527A JP8435281A JP8435281A JPS57199527A JP S57199527 A JPS57199527 A JP S57199527A JP 8435281 A JP8435281 A JP 8435281A JP 8435281 A JP8435281 A JP 8435281A JP S57199527 A JPS57199527 A JP S57199527A
- Authority
- JP
- Japan
- Prior art keywords
- collar
- collar part
- hole
- inside diameter
- jig
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
- B21C37/29—Making branched pieces, e.g. T-pieces
- B21C37/292—Forming collars by drawing or pushing a rigid forming tool through an opening in the tube wall
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
PURPOSE:To mold a collar part having a prescribed inside diameter, by making a beforehand hole on a pipe wall, forming a collar part having a small diameter, and subsequently making a prescribed jig pass through the hole. CONSTITUTION:As the first process, a jig 2 having an almost conical side or a semispherical side is passed through a hole, and a primary working collar part 4 having a ratio d/D<1 of a collar inside diameter (d) and a base pipe inside diameter D is formed. Subsequently, as the second process, a secondary working collar part 4 is worked by a rotary jig 3, and a collar part 5 of d/D=1 is formed. According to said constitution, the height of the collar is increased, a welding work is elevated, the thickness reduction ratio is decreased, and mechanical strength of a branch pipe joint part is elevated remarkably.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8435281A JPS57199527A (en) | 1981-06-03 | 1981-06-03 | Collar forming method on a part of pipe wall |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8435281A JPS57199527A (en) | 1981-06-03 | 1981-06-03 | Collar forming method on a part of pipe wall |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57199527A true JPS57199527A (en) | 1982-12-07 |
Family
ID=13828118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8435281A Pending JPS57199527A (en) | 1981-06-03 | 1981-06-03 | Collar forming method on a part of pipe wall |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57199527A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6084517U (en) * | 1983-11-17 | 1985-06-11 | 三甲株式会社 | collapsible container |
EP0752289A2 (en) * | 1995-06-05 | 1997-01-08 | Enami Seiki Mfg. Co., Ltd. | Branch pipe forming tool and method of forming branch pipe on metal tube with the tool |
US6000263A (en) * | 1995-06-05 | 1999-12-14 | Enami Seiki Mfg. Co., Ltd. | Branch pipe forming tool and method of forming branch pipe on metal tube with the tool |
CN102350468A (en) * | 2011-08-10 | 2012-02-15 | 中山市奥美森工业技术有限公司 | Draw-hole device |
CN104942041A (en) * | 2015-06-19 | 2015-09-30 | 沧州隆泰迪管道科技有限公司 | T-shaped large-diameter composite tee joint technology |
CN109175902A (en) * | 2018-09-21 | 2019-01-11 | 北京长城华冠汽车科技股份有限公司 | The manufacturing process of beam upper installing hole |
-
1981
- 1981-06-03 JP JP8435281A patent/JPS57199527A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6084517U (en) * | 1983-11-17 | 1985-06-11 | 三甲株式会社 | collapsible container |
EP0752289A2 (en) * | 1995-06-05 | 1997-01-08 | Enami Seiki Mfg. Co., Ltd. | Branch pipe forming tool and method of forming branch pipe on metal tube with the tool |
EP0752289A3 (en) * | 1995-06-05 | 1997-11-26 | Enami Seiki Mfg. Co., Ltd. | Branch pipe forming tool and method of forming branch pipe on metal tube with the tool |
US5943773A (en) * | 1995-06-05 | 1999-08-31 | Enami Seiki Mfg. Co., Ltd. | Branch pipe forming tool and method of forming branch pipe on metal tube with the tool |
US6000263A (en) * | 1995-06-05 | 1999-12-14 | Enami Seiki Mfg. Co., Ltd. | Branch pipe forming tool and method of forming branch pipe on metal tube with the tool |
CN102350468A (en) * | 2011-08-10 | 2012-02-15 | 中山市奥美森工业技术有限公司 | Draw-hole device |
CN104942041A (en) * | 2015-06-19 | 2015-09-30 | 沧州隆泰迪管道科技有限公司 | T-shaped large-diameter composite tee joint technology |
CN109175902A (en) * | 2018-09-21 | 2019-01-11 | 北京长城华冠汽车科技股份有限公司 | The manufacturing process of beam upper installing hole |
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