JPS5510328A - Forming method of bent pipe utilizing liquid pressure - Google Patents
Forming method of bent pipe utilizing liquid pressureInfo
- Publication number
- JPS5510328A JPS5510328A JP8295178A JP8295178A JPS5510328A JP S5510328 A JPS5510328 A JP S5510328A JP 8295178 A JP8295178 A JP 8295178A JP 8295178 A JP8295178 A JP 8295178A JP S5510328 A JPS5510328 A JP S5510328A
- Authority
- JP
- Japan
- Prior art keywords
- die
- blank pipe
- upper die
- lower die
- pressure liquid
- 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
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
PURPOSE: To form bent pipes of intricate shapes with a simple constitution by filling high-pressure liquid in a blank pipe and letting an upper die and a lower die make close contact.
CONSTITUTION: A blank pipe 1 is supported in a rest seat 9 formed in continuation to the die half 8 of a lower die 3. While an upper die 2 is being lowered, high-pressure liquid is filled in the blank pipe 1 from the liquid pressure inlet path 5 in a pressure piston 4 which is pressed to the top end of the blank pipe 1. During this time, the blank pipe 1 is forced into a sliding part 6. Next, while the lower die 3 is being moved in the direction to be approached to the upper die 2, the upper die 2 is raised. The upward movement of the upper die 2 and the transverse movement of the lower die 3 are accomplished until the die halves 7, 8 mate with each other. The blank pipe 1 is completely molded in compliance with the shape of the total die. Next, the high-pressure liquid in the pipe 1 is extracted, after which the upper die 2 is moved upward and the lower die 3 to the outer side, thence the molding is taken out.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8295178A JPS5510328A (en) | 1978-07-10 | 1978-07-10 | Forming method of bent pipe utilizing liquid pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8295178A JPS5510328A (en) | 1978-07-10 | 1978-07-10 | Forming method of bent pipe utilizing liquid pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5510328A true JPS5510328A (en) | 1980-01-24 |
Family
ID=13788519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8295178A Pending JPS5510328A (en) | 1978-07-10 | 1978-07-10 | Forming method of bent pipe utilizing liquid pressure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5510328A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5353618A (en) * | 1989-08-24 | 1994-10-11 | Armco Steel Company, L.P. | Apparatus and method for forming a tubular frame member |
| US5396786A (en) * | 1993-03-15 | 1995-03-14 | Mueller Industries, Inc. | Machine and method for manufacturing crossover fittings |
| US5715718A (en) * | 1996-02-27 | 1998-02-10 | Benteler Automotive Corporation | Hydroforming offset tube |
| WO2000043143A1 (en) * | 1999-01-21 | 2000-07-27 | Sango Co., Ltd. | Bending method for pipe material |
-
1978
- 1978-07-10 JP JP8295178A patent/JPS5510328A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5353618A (en) * | 1989-08-24 | 1994-10-11 | Armco Steel Company, L.P. | Apparatus and method for forming a tubular frame member |
| US5396786A (en) * | 1993-03-15 | 1995-03-14 | Mueller Industries, Inc. | Machine and method for manufacturing crossover fittings |
| US5715718A (en) * | 1996-02-27 | 1998-02-10 | Benteler Automotive Corporation | Hydroforming offset tube |
| US5775153A (en) * | 1996-02-27 | 1998-07-07 | Benteler Automotive Corp | Hydroforming offset tube |
| WO2000043143A1 (en) * | 1999-01-21 | 2000-07-27 | Sango Co., Ltd. | Bending method for pipe material |
| US6347539B1 (en) | 1999-01-21 | 2002-02-19 | Sango Co. Ltd. | Bending method for pipe material |
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