JPS5522444A - Cutting blade for blanking dies - Google Patents

Cutting blade for blanking dies

Info

Publication number
JPS5522444A
JPS5522444A JP9494178A JP9494178A JPS5522444A JP S5522444 A JPS5522444 A JP S5522444A JP 9494178 A JP9494178 A JP 9494178A JP 9494178 A JP9494178 A JP 9494178A JP S5522444 A JPS5522444 A JP S5522444A
Authority
JP
Japan
Prior art keywords
cutting blade
bainite structure
residual austenite
austenite
blanking dies
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
JP9494178A
Other languages
Japanese (ja)
Other versions
JPS6218624B2 (en
Inventor
Kenichi Shinoda
Yuichi Higo
Hiroto Tatemichi
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.)
Nippon Steel Nisshin Co Ltd
Original Assignee
Nisshin Steel 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 Nisshin Steel Co Ltd filed Critical Nisshin Steel Co Ltd
Priority to JP9494178A priority Critical patent/JPS5522444A/en
Publication of JPS5522444A publication Critical patent/JPS5522444A/en
Publication of JPS6218624B2 publication Critical patent/JPS6218624B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Punching Or Piercing (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

PURPOSE: To considerably improve hardness and abrasion resistance by treating the steel containing the specific amounts of C, Si, Mn at the specific temperatures to yield the bainite structure including austenite.
CONSTITUTION: The steel composed of C; 0.3 to 1.0%, Si; 1.0 to 3.0%, Mn; 0.2 to 3.0%, the rest of Fe and unavoidable impurities is subjected to constant temperature treatment at 300 to 480°C for 2 to 30 minutes, whereby the bainite structure containing 5 to 30% of residual austenite and a small amount of martensite is obtained. This residual austenite causes considerable work hardening at the end face during shearing and gives high ductility. The production of any cracks at the corners is ovbiated and the cutting blade of intricate shapes may be formed.
COPYRIGHT: (C)1980,JPO&Japio
JP9494178A 1978-08-03 1978-08-03 Cutting blade for blanking dies Granted JPS5522444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9494178A JPS5522444A (en) 1978-08-03 1978-08-03 Cutting blade for blanking dies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9494178A JPS5522444A (en) 1978-08-03 1978-08-03 Cutting blade for blanking dies

Publications (2)

Publication Number Publication Date
JPS5522444A true JPS5522444A (en) 1980-02-18
JPS6218624B2 JPS6218624B2 (en) 1987-04-23

Family

ID=14123966

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9494178A Granted JPS5522444A (en) 1978-08-03 1978-08-03 Cutting blade for blanking dies

Country Status (1)

Country Link
JP (1) JPS5522444A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6439346A (en) * 1987-08-03 1989-02-09 Kubota Ltd High-hardness graphic crystallization high-chromium steel composite roll
KR101417119B1 (en) * 2008-11-04 2014-07-08 현대자동차주식회사 A piercing method and punch for guiding a work hardened layer to a workpiece

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6439346A (en) * 1987-08-03 1989-02-09 Kubota Ltd High-hardness graphic crystallization high-chromium steel composite roll
KR101417119B1 (en) * 2008-11-04 2014-07-08 현대자동차주식회사 A piercing method and punch for guiding a work hardened layer to a workpiece

Also Published As

Publication number Publication date
JPS6218624B2 (en) 1987-04-23

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