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JPS55141335A - Production of metal piece continuous body of easy separation - Google Patents

Production of metal piece continuous body of easy separation

Info

Publication number
JPS55141335A
JPS55141335A JP4955579A JP4955579A JPS55141335A JP S55141335 A JPS55141335 A JP S55141335A JP 4955579 A JP4955579 A JP 4955579A JP 4955579 A JP4955579 A JP 4955579A JP S55141335 A JPS55141335 A JP S55141335A
Authority
JP
Japan
Prior art keywords
strain
shearing
metal plate
easy
stroke
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
JP4955579A
Other languages
Japanese (ja)
Other versions
JPS5823165B2 (en
Inventor
Takanari Gokan
Akihiro Handa
Masanobu Matsubara
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.)
Toyo Kohan Co Ltd
Original Assignee
Toyo Kohan 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 Toyo Kohan Co Ltd filed Critical Toyo Kohan Co Ltd
Priority to JP54049555A priority Critical patent/JPS5823165B2/en
Publication of JPS55141335A publication Critical patent/JPS55141335A/en
Publication of JPS5823165B2 publication Critical patent/JPS5823165B2/en
Expired legal-status Critical Current

Links

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  • Punching Or Piercing (AREA)

Abstract

PURPOSE: To obtain the captioned product such as easy-to-open can cap without requiring bonding or the like of metal pieces by giving shearing pre-strain to a metal plate at the stroke below its thickness and further giving the shearing pre-strain in the opposite direction at said stroke.
CONSTITUTION: An upper blade 2 and lower blade 3 are disposed on both sides of a metal plate 1 with a clearance G being made small or zero. The lower blade 3 is fixed and only the upper blade 2 is moved perpendicularly downward. The metal plate 1 between the both blades is pressed and fixed by a clamp 4. Thence, when shearing pre-strain is given to the metal plate 1 at the stroke L below its thickness, an easy-to-separate region 5 is formed. This easy-to-separate region 5 receives strong shearing strain and the crystal grains are crushed to become fibrous. Hence, this portion is work-hardened but if shearing stress or the stress close thereto is given thereto in the direction opposite from the strain having been given, it is readily ruptured and separated by small stress such as hand.
COPYRIGHT: (C)1980,JPO&Japio
JP54049555A 1979-04-20 1979-04-20 Manufacturing method for a continuous piece of metal that is easy to separate Expired JPS5823165B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54049555A JPS5823165B2 (en) 1979-04-20 1979-04-20 Manufacturing method for a continuous piece of metal that is easy to separate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54049555A JPS5823165B2 (en) 1979-04-20 1979-04-20 Manufacturing method for a continuous piece of metal that is easy to separate

Publications (2)

Publication Number Publication Date
JPS55141335A true JPS55141335A (en) 1980-11-05
JPS5823165B2 JPS5823165B2 (en) 1983-05-13

Family

ID=12834438

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54049555A Expired JPS5823165B2 (en) 1979-04-20 1979-04-20 Manufacturing method for a continuous piece of metal that is easy to separate

Country Status (1)

Country Link
JP (1) JPS5823165B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6351A (en) * 1986-06-16 1988-01-05 有限会社　谷啓製作所 Method of forming cleavage guide line in vessel cover

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49112288A (en) * 1973-02-28 1974-10-25
JPS50143682A (en) * 1974-05-02 1975-11-19
JPS5134487A (en) * 1974-09-17 1976-03-24 Kobe Steel Ltd Kinzokuzairyo no sendankakosochi
JPS51137897A (en) * 1975-05-22 1976-11-29 Seiwa Denki Kk Wiring duct and its preparation method
JPS5417587A (en) * 1977-07-11 1979-02-08 Fuji Electric Co Ltd Method of forming emboss for sheet plate
JPS54155621A (en) * 1978-05-30 1979-12-07 Yukio Suyama Foot device in stainless and its preparation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49112288A (en) * 1973-02-28 1974-10-25
JPS50143682A (en) * 1974-05-02 1975-11-19
JPS5134487A (en) * 1974-09-17 1976-03-24 Kobe Steel Ltd Kinzokuzairyo no sendankakosochi
JPS51137897A (en) * 1975-05-22 1976-11-29 Seiwa Denki Kk Wiring duct and its preparation method
JPS5417587A (en) * 1977-07-11 1979-02-08 Fuji Electric Co Ltd Method of forming emboss for sheet plate
JPS54155621A (en) * 1978-05-30 1979-12-07 Yukio Suyama Foot device in stainless and its preparation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6351A (en) * 1986-06-16 1988-01-05 有限会社　谷啓製作所 Method of forming cleavage guide line in vessel cover

Also Published As

Publication number Publication date
JPS5823165B2 (en) 1983-05-13

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