JPH0337811B2 - - Google Patents

Info

Publication number
JPH0337811B2
JPH0337811B2 JP62230546A JP23054687A JPH0337811B2 JP H0337811 B2 JPH0337811 B2 JP H0337811B2 JP 62230546 A JP62230546 A JP 62230546A JP 23054687 A JP23054687 A JP 23054687A JP H0337811 B2 JPH0337811 B2 JP H0337811B2
Authority
JP
Japan
Prior art keywords
forming
drill
recess
molding
die
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.)
Expired - Lifetime
Application number
JP62230546A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6475138A (en
Inventor
Sozo Myagawa
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.)
MYAGAWA KINZOKU KOGYO KK
Original Assignee
MYAGAWA KINZOKU KOGYO KK
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 MYAGAWA KINZOKU KOGYO KK filed Critical MYAGAWA KINZOKU KOGYO KK
Priority to JP23054687A priority Critical patent/JPS6475138A/ja
Publication of JPS6475138A publication Critical patent/JPS6475138A/ja
Publication of JPH0337811B2 publication Critical patent/JPH0337811B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
    • B21H3/027—Rolling of self-tapping screws

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
JP23054687A 1987-09-14 1987-09-14 Manufacture of drill screw and drill part forming die used for said manufacture Granted JPS6475138A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23054687A JPS6475138A (en) 1987-09-14 1987-09-14 Manufacture of drill screw and drill part forming die used for said manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23054687A JPS6475138A (en) 1987-09-14 1987-09-14 Manufacture of drill screw and drill part forming die used for said manufacture

Publications (2)

Publication Number Publication Date
JPS6475138A JPS6475138A (en) 1989-03-20
JPH0337811B2 true JPH0337811B2 (nl) 1991-06-06

Family

ID=16909455

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23054687A Granted JPS6475138A (en) 1987-09-14 1987-09-14 Manufacture of drill screw and drill part forming die used for said manufacture

Country Status (1)

Country Link
JP (1) JPS6475138A (nl)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5980390A (en) * 1997-10-17 1999-11-09 Ferrante; Frank Die for self drilling screws
US6110047A (en) * 1999-08-16 2000-08-29 Lin; Tsang-Yao Mold for forming a screw with an auger tip
CN109773101A (zh) * 2018-12-19 2019-05-21 常熟市常力紧固件有限公司 一种刮屑槽螺栓的成型工艺

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS533344A (en) * 1976-06-30 1978-01-13 Ricoh Co Ltd Fixing device of electrophotographic copier

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS533344A (en) * 1976-06-30 1978-01-13 Ricoh Co Ltd Fixing device of electrophotographic copier

Also Published As

Publication number Publication date
JPS6475138A (en) 1989-03-20

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