JPS56165514A - Method and apparatus for manufacturing extruded semihollow shape of aluminum alloy - Google Patents

Method and apparatus for manufacturing extruded semihollow shape of aluminum alloy

Info

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
Application number
JP6832980A
Other languages
Japanese (ja)
Inventor
Ichiro Otsuka
Kokichi Tanaka
Osamu Tate
Yuji Furugane
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HOKUSEI ALUM KK
HOKUSEI ALUMINIUM CO Ltd
Original Assignee
HOKUSEI ALUM KK
HOKUSEI ALUMINIUM CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HOKUSEI ALUM KK, HOKUSEI ALUMINIUM CO Ltd filed Critical HOKUSEI ALUM KK
Priority to JP6832980A priority Critical patent/JPS56165514A/en
Publication of JPS56165514A publication Critical patent/JPS56165514A/en
Pending legal-status Critical Current

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
JP6832980A 1980-05-22 1980-05-22 Method and apparatus for manufacturing extruded semihollow shape of aluminum alloy Pending JPS56165514A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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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