JPS56165514A - Method and apparatus for manufacturing extruded semihollow shape of aluminum alloy - Google Patents
Method and apparatus for manufacturing extruded semihollow shape of aluminum alloyInfo
- Publication number
- JPS56165514A JPS56165514A JP6832980A JP6832980A JPS56165514A JP S56165514 A JPS56165514 A JP S56165514A JP 6832980 A JP6832980 A JP 6832980A JP 6832980 A JP6832980 A JP 6832980A JP S56165514 A JPS56165514 A JP S56165514A
- Authority
- JP
- Japan
- Prior art keywords
- shape
- hollow
- thin walled
- imperfectly
- semihollow
- 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
- B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
- B21C35/02—Removing or drawing-off work
- B21C35/023—Work treatment directly following extrusion, e.g. further deformation or surface treatment
- B21C35/026—Removing sections from the extruded work, e.g. removing a strip to create an open profile
-
- 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
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/14—Making other products
- B21C23/142—Making profiles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
Abstract
PURPOSE: To manufacture an Al-alloy-made extruded semihollow shape free from strain to be used for a sash member, etc., with a good yield, by forming an extruded fully hollow shape so as to make the thickness of the middle part thin, by subjecting this shape to an age hardening treatment, and then, by cutting the shape to divide it at the thin walled middle part.
CONSTITUTION: At extruding a fully hollow shape A having concave grooves 2 at both ends, thin walled parts 5 are longitudinally formed at the middle of breadth of both outer walls 4. This shape A is subjected to an age hardening treatment so as to preserve the elasticity. Next, the shape A is cut off at the thin walled parts 5 and is divided into two imperfectly hollow shapes B respectively having an imperfectly hollow part 10. Hereupon, an outer cutting roll 6 and an inner cutting roll 7 are applied to the outer wall surface 4 for dividing the left and right two pieces 8, 9 of the outer wall surface 4 separated at the thin walled parts 5 while two pieces 8, 9 are being alternately bent within the elastic limit. By the present method, an imperfectly hollow strainless shape B possible to fully restore the initial shape after being pressed is obtained without generating material wastes.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6832980A JPS56165514A (en) | 1980-05-22 | 1980-05-22 | Method and apparatus for manufacturing extruded semihollow shape of aluminum alloy |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6832980A JPS56165514A (en) | 1980-05-22 | 1980-05-22 | Method and apparatus for manufacturing extruded semihollow shape of aluminum alloy |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56165514A true JPS56165514A (en) | 1981-12-19 |
Family
ID=13370675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6832980A Pending JPS56165514A (en) | 1980-05-22 | 1980-05-22 | Method and apparatus for manufacturing extruded semihollow shape of aluminum alloy |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56165514A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60255216A (en) * | 1984-05-30 | 1985-12-16 | Sankyo Alum Ind Co Ltd | Production of curved shape material |
WO2002053303A1 (en) * | 2001-01-03 | 2002-07-11 | Brazeway, Inc. | Method and apparatus for manufacturing extruded parts |
JP2007021563A (en) * | 2005-07-20 | 2007-02-01 | Kobe Steel Ltd | Aluminum extruded hollow panel, and its manufacturing method |
CN104384375A (en) * | 2014-10-31 | 2015-03-04 | 湖州华利铝业有限公司 | Aluminum section forming device |
-
1980
- 1980-05-22 JP JP6832980A patent/JPS56165514A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60255216A (en) * | 1984-05-30 | 1985-12-16 | Sankyo Alum Ind Co Ltd | Production of curved shape material |
WO2002053303A1 (en) * | 2001-01-03 | 2002-07-11 | Brazeway, Inc. | Method and apparatus for manufacturing extruded parts |
JP2007021563A (en) * | 2005-07-20 | 2007-02-01 | Kobe Steel Ltd | Aluminum extruded hollow panel, and its manufacturing method |
CN104384375A (en) * | 2014-10-31 | 2015-03-04 | 湖州华利铝业有限公司 | Aluminum section forming device |
CN104384375B (en) * | 2014-10-31 | 2016-12-07 | 湖州华利铝业有限公司 | A kind of forming aluminium section device |
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