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JPS6457941A - Cold heading tool - Google Patents

Cold heading tool

Info

Publication number
JPS6457941A
JPS6457941A JP21623987A JP21623987A JPS6457941A JP S6457941 A JPS6457941 A JP S6457941A JP 21623987 A JP21623987 A JP 21623987A JP 21623987 A JP21623987 A JP 21623987A JP S6457941 A JPS6457941 A JP S6457941A
Authority
JP
Japan
Prior art keywords
nib
ceramic
assembling
fit
segmental
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
JP21623987A
Other languages
Japanese (ja)
Inventor
Teruo Kihara
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP21623987A priority Critical patent/JPS6457941A/en
Publication of JPS6457941A publication Critical patent/JPS6457941A/en
Pending legal-status Critical Current

Links

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  • Forging (AREA)

Abstract

PURPOSE:To improve the fatigue strength and to extend the service life by assembling in a cylindrical shape the three equally divided parts which is composed of a sintered hard metal or ceramic and whose sectional shape is segmental and storing them in a case by press fit or shrinkage fit. CONSTITUTION:The nib 21 of a sintered hard alloy or ceramic and divided in a segmental shape is formed. These nib 21 are stored in a case 22 by press fit or shrinkage fit after assembling them in a cylindrical shape. With the composition like this, the load exerted on the nib is uniformized and dispersed, the fatigue strength is improved and the product quality is stabilized as well as the tool life is extended.
JP21623987A 1987-08-28 1987-08-28 Cold heading tool Pending JPS6457941A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21623987A JPS6457941A (en) 1987-08-28 1987-08-28 Cold heading tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21623987A JPS6457941A (en) 1987-08-28 1987-08-28 Cold heading tool

Publications (1)

Publication Number Publication Date
JPS6457941A true JPS6457941A (en) 1989-03-06

Family

ID=16685455

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21623987A Pending JPS6457941A (en) 1987-08-28 1987-08-28 Cold heading tool

Country Status (1)

Country Link
JP (1) JPS6457941A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5382693A (en) * 1993-05-06 1995-01-17 The Dow Chemical Company Bis(aminophenoxy)-alpha-substituted stilbenes
DE19934072A1 (en) * 1999-07-23 2001-01-25 Schott Glas Alkali-free aluminoborosilicate glass, its uses and process for its preparation
JP2015091598A (en) * 2013-10-01 2015-05-14 日立金属株式会社 Hot forging die and hot forging method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4110673Y1 (en) * 1964-04-09 1966-05-19

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4110673Y1 (en) * 1964-04-09 1966-05-19

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5382693A (en) * 1993-05-06 1995-01-17 The Dow Chemical Company Bis(aminophenoxy)-alpha-substituted stilbenes
DE19934072A1 (en) * 1999-07-23 2001-01-25 Schott Glas Alkali-free aluminoborosilicate glass, its uses and process for its preparation
DE19934072C2 (en) * 1999-07-23 2001-06-13 Schott Glas Alkali-free aluminoborosilicate glass, its uses and processes for its manufacture
JP2015091598A (en) * 2013-10-01 2015-05-14 日立金属株式会社 Hot forging die and hot forging method

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