JPS6123051B2 - - Google Patents
Info
- Publication number
- JPS6123051B2 JPS6123051B2 JP3898981A JP3898981A JPS6123051B2 JP S6123051 B2 JPS6123051 B2 JP S6123051B2 JP 3898981 A JP3898981 A JP 3898981A JP 3898981 A JP3898981 A JP 3898981A JP S6123051 B2 JPS6123051 B2 JP S6123051B2
- Authority
- JP
- Japan
- Prior art keywords
- rectangular
- tubes
- cylindrical
- tubular body
- expanded
- 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.)
- Expired
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
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/02—Enlarging
-
- 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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Joining Of Building Structures In Genera (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3898981A JPS57152327A (en) | 1981-03-17 | 1981-03-17 | Joining method for square cylindrical tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3898981A JPS57152327A (en) | 1981-03-17 | 1981-03-17 | Joining method for square cylindrical tube |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57152327A JPS57152327A (en) | 1982-09-20 |
JPS6123051B2 true JPS6123051B2 (enrdf_load_html_response) | 1986-06-04 |
Family
ID=12540545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3898981A Granted JPS57152327A (en) | 1981-03-17 | 1981-03-17 | Joining method for square cylindrical tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57152327A (enrdf_load_html_response) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4580324A (en) * | 1984-06-22 | 1986-04-08 | Wynn-Kiki, Inc. | Method for rounding flat-oval tubing |
GB9817112D0 (en) * | 1998-08-07 | 1998-10-07 | Gkn Sankey Ltd | A process for forming tubular components |
JP2009142824A (ja) * | 2007-12-11 | 2009-07-02 | Komatsu Ltd | 鋼管の拡管成形方法 |
EP2428289B1 (en) * | 2010-09-08 | 2013-04-03 | Crowntec Fitness MFG., Ltd. | Method of fabricating sleeves for trampolines |
-
1981
- 1981-03-17 JP JP3898981A patent/JPS57152327A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS57152327A (en) | 1982-09-20 |