JPS5772746A - Production of nut - Google Patents

Production of nut

Info

Publication number
JPS5772746A
JPS5772746A JP14864680A JP14864680A JPS5772746A JP S5772746 A JPS5772746 A JP S5772746A JP 14864680 A JP14864680 A JP 14864680A JP 14864680 A JP14864680 A JP 14864680A JP S5772746 A JPS5772746 A JP S5772746A
Authority
JP
Japan
Prior art keywords
punch
hole before
slug
before threading
recess
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
JP14864680A
Other languages
Japanese (ja)
Inventor
Tetsuo Matsuda
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 JP14864680A priority Critical patent/JPS5772746A/en
Publication of JPS5772746A publication Critical patent/JPS5772746A/en
Pending legal-status Critical Current

Links

Landscapes

  • Forging (AREA)

Abstract

PURPOSE: To make the slug of a hole before threading usable as a blank material and to lower costs by trimming the blank material to form an outside circumferential shape after a cold pressing process for the same.
CONSTITUTION: In the 1st press-forming process, a blank material 1 (slug B) is rolled by a die 11 and a punch 12; at the same time, a tapered surface 2 and a circular conical recess 3 are formed. In the 2nd rolling process, the material 1 is deepened of its recess 3 by the punch, and a recess is formed on the other end surface. Next, in piercing process of hole before threading, the material 1 is set on a piercing punch 32, and is pressurized with a punch 33 from above, whereby a hole before threading 6 is pierced. In this case, a slug 7 is discharged through a hollow part 33a, and is removed from the guide by an ejection sleeve 34. Further, in a trimming process, the material 1 is held between a pressing pin and a cradle from above and below, and the outside circumferential surface is cut with a trimmer. Thence, an internal screw is formed in the hole before threading 6, and the material is completed as a nut.
COPYRIGHT: (C)1982,JPO&Japio
JP14864680A 1980-10-22 1980-10-22 Production of nut Pending JPS5772746A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14864680A JPS5772746A (en) 1980-10-22 1980-10-22 Production of nut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14864680A JPS5772746A (en) 1980-10-22 1980-10-22 Production of nut

Publications (1)

Publication Number Publication Date
JPS5772746A true JPS5772746A (en) 1982-05-07

Family

ID=15457447

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14864680A Pending JPS5772746A (en) 1980-10-22 1980-10-22 Production of nut

Country Status (1)

Country Link
JP (1) JPS5772746A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104128494A (en) * 2014-06-24 2014-11-05 芜湖求精紧固件有限公司 Internal hexagonal die
CN109940394A (en) * 2019-03-28 2019-06-28 上海永太汽车零部件有限公司 A kind of circular sheet nut system of processing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104128494A (en) * 2014-06-24 2014-11-05 芜湖求精紧固件有限公司 Internal hexagonal die
CN109940394A (en) * 2019-03-28 2019-06-28 上海永太汽车零部件有限公司 A kind of circular sheet nut system of processing
CN109940394B (en) * 2019-03-28 2020-11-03 上海永太汽车零部件有限公司 Circular sheet nut system of processing

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