JPS6444223A - Cold bulging method for resin laminated aluminum foil - Google Patents

Cold bulging method for resin laminated aluminum foil

Info

Publication number
JPS6444223A
JPS6444223A JP62201426A JP20142687A JPS6444223A JP S6444223 A JPS6444223 A JP S6444223A JP 62201426 A JP62201426 A JP 62201426A JP 20142687 A JP20142687 A JP 20142687A JP S6444223 A JPS6444223 A JP S6444223A
Authority
JP
Japan
Prior art keywords
top face
punch
flat part
forming
area
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.)
Granted
Application number
JP62201426A
Other languages
Japanese (ja)
Other versions
JPH0581332B2 (en
Inventor
Masashi Sakaguchi
Tomoaki Yamanoi
Hideo Kawai
Susumu Takada
Koji Minamitani
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.)
Altemira Co Ltd
Original Assignee
Showa Aluminum Corp
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 Showa Aluminum Corp filed Critical Showa Aluminum Corp
Priority to JP62201426A priority Critical patent/JPS6444223A/en
Publication of JPS6444223A publication Critical patent/JPS6444223A/en
Publication of JPH0581332B2 publication Critical patent/JPH0581332B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

PURPOSE:To improve the flow of a blank and to increase the height in forming by executing forming by using the punch limiting the percentage occupied in the whole top face of the center flat part of the punch top face and the inclination of the taper part or circular arcuated part of the top face peripheral end part. CONSTITUTION:In case of a bulged forming by a punch with a resin laminated aluminum foil as the blank, the forming is executed by using the punch 1 that the area of a center flat part 3 on the top face 2 of the punch 1 occupies 20-80% of the whole top face, and formed on the tapered part 4a whose peripheral end art excepting the flat part 3 of the top face is inclined at the angle of >=5 deg. in the recessing direction or on the circular arcuated part 4b of the curvature equivalent thereto. At this time, the flow of the blank plate worsens when the area of the flat part 3 exceeds 80% of the area of the whole top face. In case of <20% in opposition a rupture is caused. Also, in case of the angle theta made by the flat part 3 and tapered part 4a or the inclination theta made by the circular arcuated tangent at the connecting part P of the flat part 3 and circular arcuated part 4b being <5 deg., the effect is hampered, hence the inclination theta must be set at >=than 5 deg..
JP62201426A 1987-08-11 1987-08-11 Cold bulging method for resin laminated aluminum foil Granted JPS6444223A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62201426A JPS6444223A (en) 1987-08-11 1987-08-11 Cold bulging method for resin laminated aluminum foil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62201426A JPS6444223A (en) 1987-08-11 1987-08-11 Cold bulging method for resin laminated aluminum foil

Publications (2)

Publication Number Publication Date
JPS6444223A true JPS6444223A (en) 1989-02-16
JPH0581332B2 JPH0581332B2 (en) 1993-11-12

Family

ID=16440886

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62201426A Granted JPS6444223A (en) 1987-08-11 1987-08-11 Cold bulging method for resin laminated aluminum foil

Country Status (1)

Country Link
JP (1) JPS6444223A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01278920A (en) * 1988-04-27 1989-11-09 Showa Alum Corp Method for cold-bulging resin laminated al foil
JP2001340926A (en) * 2000-05-31 2001-12-11 Showa Denko Kk Cold bulging method of resin laminated aluminum foil
JP2022180736A (en) * 2021-05-25 2022-12-07 昭和電工パッケージング株式会社 Die for drawing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50109069A (en) * 1974-02-12 1975-08-27
JPS5142688A (en) * 1974-10-09 1976-04-10 Yoshizaki Kozo

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50109069A (en) * 1974-02-12 1975-08-27
JPS5142688A (en) * 1974-10-09 1976-04-10 Yoshizaki Kozo

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01278920A (en) * 1988-04-27 1989-11-09 Showa Alum Corp Method for cold-bulging resin laminated al foil
JP2001340926A (en) * 2000-05-31 2001-12-11 Showa Denko Kk Cold bulging method of resin laminated aluminum foil
JP2022180736A (en) * 2021-05-25 2022-12-07 昭和電工パッケージング株式会社 Die for drawing

Also Published As

Publication number Publication date
JPH0581332B2 (en) 1993-11-12

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees