JPS5647210A - Cold forming method for spiral groove in inner surface of metallic pipe - Google Patents
Cold forming method for spiral groove in inner surface of metallic pipeInfo
- Publication number
- JPS5647210A JPS5647210A JP12398679A JP12398679A JPS5647210A JP S5647210 A JPS5647210 A JP S5647210A JP 12398679 A JP12398679 A JP 12398679A JP 12398679 A JP12398679 A JP 12398679A JP S5647210 A JPS5647210 A JP S5647210A
- Authority
- JP
- Japan
- Prior art keywords
- pipe blank
- pipe
- groove
- plug
- spiral groove
- 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
Landscapes
- Metal Extraction Processes (AREA)
Abstract
PURPOSE: To apply the efficient cold drawing work to the inner surface of the metalllic pipe in order to form the spiral groove with high quality, by holding the tip of the pipe blank with the rotary chuck, and by forcibly revolving and feeding the pipe blank while keeping the revolving angle approximately equal to the leading angle of the sprial groove to be formed.
CONSTITUTION: At manufacturing the metallic pipe provided with the spiral groove in its inner surface, at first, a drawing work is applied to the tip of the pipe blank 2, and at the same time, the spiral groove 29 fitting to the spiral rib 11 of the plug 12 is formed in the inner surface of the pipe blank 2. Next, the tip of the pipe blank 2 is passed through the die 6 and is grasped by the rotary chuck 1, and besides, the mandrel 10 is inserted into the pipe blank 2, and the plug 12 is screwed into the groove 29 of the forefront inner surface of the pipe blank 2. Then, while forcibly revolving the pipe blank 2 by the chuck 1, a forward feed is given to the pipe blank 2; hereby, the pipe blank 2 is passed through the die 6 and is drawn to contract its diameter, and at the same time, the groove 29 is continuously cold-formed in the inner surface of the pipe blank 2 by the plug 12. Hereupon, the ratio between the feeding speed of the chuck 1 and its rotational speed are set so as to make the revolving angle of the pipe blank 2 almost equal to the leading angle of the rib 11 of the plug 12.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12398679A JPS5647210A (en) | 1979-09-28 | 1979-09-28 | Cold forming method for spiral groove in inner surface of metallic pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12398679A JPS5647210A (en) | 1979-09-28 | 1979-09-28 | Cold forming method for spiral groove in inner surface of metallic pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5647210A true JPS5647210A (en) | 1981-04-28 |
Family
ID=14874206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12398679A Pending JPS5647210A (en) | 1979-09-28 | 1979-09-28 | Cold forming method for spiral groove in inner surface of metallic pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5647210A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009038201A1 (en) * | 2007-09-19 | 2009-03-26 | Kouzan Technology Corporation | Forming apparatus |
| KR100943111B1 (en) | 2008-04-02 | 2010-02-18 | 정재기 | Metal tube with step on outer diameter Drawing shaft reduction device and metal tube with step on outer diameter |
-
1979
- 1979-09-28 JP JP12398679A patent/JPS5647210A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009038201A1 (en) * | 2007-09-19 | 2009-03-26 | Kouzan Technology Corporation | Forming apparatus |
| JP5236656B2 (en) * | 2007-09-19 | 2013-07-17 | 興山テクノ株式会社 | Forming device |
| KR100943111B1 (en) | 2008-04-02 | 2010-02-18 | 정재기 | Metal tube with step on outer diameter Drawing shaft reduction device and metal tube with step on outer diameter |
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