JPS55161525A - Blanking method for sheet-metal product from metallic sheet - Google Patents

Blanking method for sheet-metal product from metallic sheet

Info

Publication number
JPS55161525A
JPS55161525A JP6986079A JP6986079A JPS55161525A JP S55161525 A JPS55161525 A JP S55161525A JP 6986079 A JP6986079 A JP 6986079A JP 6986079 A JP6986079 A JP 6986079A JP S55161525 A JPS55161525 A JP S55161525A
Authority
JP
Japan
Prior art keywords
straight
blanking
apex
sheet
outline
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
JP6986079A
Other languages
Japanese (ja)
Other versions
JPS5744418B2 (en
Inventor
Yukihiko Sano
Hidetaka Aoki
Masakuni Ono
Takashi Yamamoto
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.)
Caterpillar Mitsubishi Ltd
Original Assignee
Caterpillar Mitsubishi 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 Caterpillar Mitsubishi Ltd filed Critical Caterpillar Mitsubishi Ltd
Priority to JP6986079A priority Critical patent/JPS55161525A/en
Publication of JPS55161525A publication Critical patent/JPS55161525A/en
Publication of JPS5744418B2 publication Critical patent/JPS5744418B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Punching Or Piercing (AREA)

Abstract

PURPOSE: To easily form successively the easily breakable parts on the straight outline of the sheet material, by employing the punch provided with a sharp apex in the oblique side.
CONSTITUTION: The polygonal punch 14a, provided with a sharp apex 12 in at least one end of the straight side 11 and the oblique side 13, is employed for forming the easily breakable part by blanking under the condition as follows; the straight side 11 is laid along the straight outline 3 between the blanking points 3a, 3b, in the straight outline 3 of the sheet material, and the apex 12 is placed a little distant from the blanking point 3a, and another end of the straight side 11 is contacted with the blanking point 3b. The punches respectively provided with the apex 12 facing to different direction are selectively employed for forming the blanked parts at desired positions in the straight outlines 3IW3IV mutually crossing perpendicularly. By beating the hedging part with the hammer, respective sheet-metal product is released from the parent metal. According to this method, the breakage, etc., of the material during the blanking work is prevented, and the product still maintaining the parent metal condition can be surely carried away from the punching press machine.
COPYRIGHT: (C)1980,JPO&Japio
JP6986079A 1979-06-06 1979-06-06 Blanking method for sheet-metal product from metallic sheet Granted JPS55161525A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6986079A JPS55161525A (en) 1979-06-06 1979-06-06 Blanking method for sheet-metal product from metallic sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6986079A JPS55161525A (en) 1979-06-06 1979-06-06 Blanking method for sheet-metal product from metallic sheet

Publications (2)

Publication Number Publication Date
JPS55161525A true JPS55161525A (en) 1980-12-16
JPS5744418B2 JPS5744418B2 (en) 1982-09-21

Family

ID=13414973

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6986079A Granted JPS55161525A (en) 1979-06-06 1979-06-06 Blanking method for sheet-metal product from metallic sheet

Country Status (1)

Country Link
JP (1) JPS55161525A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02251321A (en) * 1989-03-27 1990-10-09 Anritsu Corp Working method of punch press machine
JP2014228979A (en) * 2013-05-21 2014-12-08 株式会社アマダ Punching machine and machining program correction method for use in the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02251321A (en) * 1989-03-27 1990-10-09 Anritsu Corp Working method of punch press machine
JP2014228979A (en) * 2013-05-21 2014-12-08 株式会社アマダ Punching machine and machining program correction method for use in the same

Also Published As

Publication number Publication date
JPS5744418B2 (en) 1982-09-21

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